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Progress on Genetic Basis of Rice Ideal Plant Type LENG Yu-Jia, QIAN Qian-*, ZENG Da-Li-* 2014, 20(2): 1-6.  DOI: 10.3969/j.issn.1006-8082.2014.02.001 Abstract ( )   PDF (744KB) ( )   Rice is a staple food crop in China. With the wide adoption of semi-dwarf varieties since 1950s and the developing of hybrid rice since 1970s, the yield of rice achieved two leaps. In recent years, rice yield was stagnating. But with the comprehensive design of ideal plant type, making a new breakthrough is possible. The authors briefly reviewed the genetic progress on rice ideal plant type in roots, stems, leaves, spikes and tillers.

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Analysis on the Yield Components and Optiming Cultivation Approachs of Super Hybrid Rice Y Liangyou 900 LI Jian-Wu-1, ZHANG Yu-Zhu-2, XIAO Li-Min-3, WU Jun-1, ZHUANG Wen-1, DENG Qi-Yun-1, 4* 2014, 20(2): 7-10.  DOI: 10.3969/j.issn.1006-8082.2014.02.002 Abstract ( )   PDF (565KB) ( )   A record of average yield of 14.82 t/hm2 was created in an area of 6.75 hm2 in 2013 in Hunan for Y Liangyou 900, which is a new combination with potential  yield of phase Ⅳ super hybrid rice. Y Liangyou 900 has stong root system, high lodging resistance, large panicles with plenty of spikelets, high seed setting rate, ideal plant type, suitable growth duration, wide adaptability, good grain quality and multiple resistance to biotic and abiotic stresses. The leaf age, plants and ears dynamics and yield components of Y Liangyou 900（2013） and Y Liangyou 2（2011） are analysed, optimizing cultivation approaches of Y Liangyou 900 are discussed in the paper.

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Advantages of Yield Formation and the Characteristics of Large Panicle Type Japonica Hybrid Rice Machine-transplanted with Young Seedling ZHANG Qiang-1, ZHANG Hong-Cheng-1*, CHANG Yong-1, DAI Qi-Gen-1, HUO Zhong-Yang-1, XU Ke-1, WEI Hai-Yan-1, ZHAO Le-Tian-1, XU Zong-Jin-2, WANG Hong-Yang-2, ZHANG Li-Zhi-2 2014, 20(2): 11-15.  DOI: 10.3969/j.issn.1006-8082.2014.02.003 Abstract ( )   PDF (628KB) ( )   The advantages of yield formation and the characteristics of large panicle type japonica hybrid rice of Yongyou 2640，Yongyou 2638，Yongyou 1640, which had a better performance in Huaibei area, were machine-transplanted and studied under high-yield cultivation measures in 2011 and 2012, with new super rice varieties Liandao7, Xindao18 and Ningdao 4 grown widely in local as control. It was showed that the yields of large panicle type japonica hybrid rice was significantly higher than that of super japonica rice, because of its more grain number per panicle, and resulted enough total grain number of groups, and higher seed setting rate. For super japonica rice, although with more panicles number, but less enough number of grain per panicle resulted less total grain number, and less yield. It has a significant characteristics that percentage of earbearing tiller, leaf area index, photosynthetic potential, growth rate and dry matter accumulation of population, were significantly greater in large panicle type japonica hybrid rice than that in middle conventional japonica rice in yield formating of middle and late period, and the yields of the former is 7.68%~12.14% higher than the later in rice following wheat in Huaibei area. The research showed that the biggest correlation coefficient （0.980） exists between number of grain per panicle and yield.

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Comparision and Analysis on Nitrogen Use Efficiency of Different Hybrid Rice Combinations RUAN Xin-Min, SHI Fu-Zhi, CONG Xi-Han, LUO Zhi-Xiang 2014, 20(2): 16-19.  DOI: 10.3969/j.issn.1006-8082.2014.02.004 Abstract ( )   PDF (416KB) ( )   NUE（nitrogen use efficiency） of the main released high yield hybrid rice combinations were tested on the field. The results indicat that Xieyou 52 and Y liangyou 2 showed higher yield and NUE than other hybrid rice combinations, under low and medium nitrogen condition. Compared with the control, the yield of Xieyou 52 and Y liangyou 2 increased by more than 5%; NUE of Xieyou 52 increased by more than 10% and Y liangyou 2 increased by more than 5%. The yield and effective panicles of high yield hybrid rice are greatly influenced by nitrogen.Under low nitrogen condition, the hybrid combinations of fewer effective panicles, lower nitrogen accumulation and higher grain weight per plant shows higher nitrogen use efficiency .

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Identification of A Major R Gene to Rice Blast in Jiazao 324 CAI Jin-Yang 2014, 20(2): 20-22.  DOI: 10.3969/j.issn.1006-8082.2014.02.005 Abstract ( )   PDF (382KB) ( )   Six different magnaporthe oryzae isolates were used to test the resistance of Jiazao 324, an indica rice variety, and a representative isolate was selected to analyse the inheritance of Jiazao 324's reistance. The results indicated that a single major R gene responsible for its resistance to the isolate, the corresponding R gene were mapped between SSR markers RM136 and RM7213 on the short arm of rice chromosome 6. The results were helpful for the utilization of Jiazao 324.

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Dynamic Process of the Accumulation of Storage Proteins Components in Rice under High Temperature Stress MA Qi-Lin-1, LI Yang-Sheng-2, DENG Yong-Chuan-1, YUAN Qian-Hua-1, WEI Shuang-Shuang-1, DI Jin-Ling-1, LUO Yue-Hua-1 2014, 20(2): 23-24.  DOI: 10.3969/j.issn.1006-8082.2014.02.006 Abstract ( )   PDF (289KB) ( )   The content and composition of storage protein, which were controlled by genetic factors, environment and cultivation techniques, are important index to evaluate rice quality and nutrition value. Panicle fertilizer obviously enhanced crude protein content of matured rice grain, but the impact on the relative content of each component was not significant. High temperature stress significantly changed the dynamic process of the accumulation of storage proteins components, the components soluble in dilute acid or dilute alkali, including more than 57 kD polypeptides （which is considered a precursor of glutelin or protein polymer）, maintained a high level from the beginning of filling stage. After high temperature stress, the glutelin of matured seeds were existed in state of high molecular polymer,  and the contents of glutelin monomer and prolamin were reduced.

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Correlation Analysis on Grain Quality Traits of Medium Amylose Content Indica Rice Combinations KUANG Hao-Chi, YANG Yang, ZENG Zheng-Ming-*, LUO Jun-Tao, CHEN Guang-Zhen, HE Xing-Cai, FU Jun 2014, 20(2): 25-28.  DOI: 10.3969/j.issn.1006-8082.2014.02.007 Abstract ( )   PDF (351KB) ( )   The grain quality traits and their relationships of 86 medium amylose content hybrid rice combinations were studied and analyzed in Sichuan Province. The results showed that the quality traits are quite different. The difference in chalkiness degree was the biggest, CV was 33.22%; followed by chalky rice rate, CV was 23.32%; the last was brown rice rate, CV was 1.01%. According to the high quality rice standards of individual traits, except the amylose content, the high compliance rate are gel consistency and head milled rice rate, there are 94.19% and 86.05% combinations up to three grade quality rice; the low compliance rate are chalky rice rate and chalkiness degree, there are only 3.49% and 4.65% combinations up to three grade quality rice. Comprehensive quality indexes of 2 combinations reach three grade quality standards in the 86 indica hybrid rice combinations. Correlation analysis results showed that in medium amylose content（15%~24%）, amylose content is highly significant positive correlation with chalky rice rate and chalkiness degree; gel consistency is highly significant negative correlation with protein content; chalkiness degree is highly significant negative correlation with length-width ratio, and highly significant positive correlation with chalky rice rate; length-width ratio is highly significant negative correlation with head rice rate and chalky rice rate. It is main target to ruduce the chalky rice rate and chalkiness degree and then pay attention to the selection of strong resistant to rice milling in rice quality improvement.

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Development Strategy on Ratoon Rice in the South of Henan LIU Xiang-Chen, FENG Da-Qing-*, LI Ping, ZHANG Ying-Xiang, QIAO Li, YU Gui-Long, FAN Xue-Jun 2014, 20(2): 29-31,34.  DOI: 10.3969/j.issn.1006-8082.2014.02.008 Abstract ( )   PDF (560KB) ( )   Adaptation and development prospect of ratooning rice in the south of Henan were analyzed, and a development strategy, which includes choosing varieties of moderate growth duration, using protection facilities seedlings ahead of time, rational fertilization, appropriate transplanting density, intermittent irrigation, strenthening management in ratoon season, and so on,. was proposed.

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Determination of Fluoride Content in Rice by Fluoride Selective Electrode Method HE Xiao-Yan, FANG Chang-Yun, SUN Cheng-Xiao-* 2014, 20(2): 32-34.  DOI: 10.3969/j.issn.1006-8082.2014.02.009 Abstract ( )   PDF (365KB) ( )   The aim of our study was to develop an optimized method for the determination of fluoride content in rice. During determination, ultrasonic extraction was used and the calculation method of fluoride content was modified. The results showed that the relative standard deviations（RSD） of this method ranged from 2.9％ to 8.4％, the averaged recovery rate ranged from 90.8％ to 102.5％, respectively. The relative deviations between the Ion Chromatography and this method was less than 10%, all of the parameters meet the demands of determination. The method had the virtues of low costs, easy to operate, good repeatability, high recovery rate, and can meet the needs of rice detection.

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Application of Plant Modeling on Rice Breeding and Cultivation: a Brief Review LI Dong-1, DING Xin-Quan-2, WANG Jun-Min-3, ZHOU Bin-4*, YAN Cui-Xiang-2 2014, 20(2): 35-39.  DOI: 10.3969/j.issn.1006-8082.2014.02.010 Abstract ( )   PDF (579KB) ( )   Rice is one of the most important crops in China. Information technology，especially rice modelling，will be very useful to rice cultivation and breeding. In this paper, the author preliminary summarized most of plant models and divided them into three categories, process based model （PBM, or functional model）, structural model and functional-structural model （FSPM）. Then the authors briefly told their role in rice cultivation and breeding. The process based model could be used to: predict the rice growth and yield, support the farmer or government to make decision on rice production together with remote sensing technology （RS） and geographic information system （GIS）, do virtual experiments which could not be conducted in the field or would cost a lot. Structural model could be used to quantitatively describe the canopy in detail, calculate the potential photosynthesis capacity of different cultivar canopies and evaluate the rice ideotype, etc. The functional-structural model could be used to simulate the biomass allocated among different organs and then simulate and find the appropriate way to get more productive rice cultivars. The authors also discussed the reasons why the model could not be used broadly and gave some solutions.

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Rice Culture Rethingking （4）: Rice and Grain Administrating-1 PANG Qian-Lin, LIN Hai, WANG Zhi-Gang, WANG Lei 2014, 20(2): 40-44.  DOI: 10.3969/j.issn.1006-8082.2014.02.011 Abstract ( )   PDF (798KB) ( )   Grain development is greatly relate to the grain policy of a country or region. Social is stable when grain policy promotes grain production and equilibrium distribution, and is not stable when tax is too much and other grain policy inhibits grain production. In china, since the ancient times, many grain policy established from rice and rice production, even named as “rice”, such as “provincial governors assuming responsiblity for the rice bag”. Rice and grain policy of ancient and modern China before reform and opening up are discussed in the paper.

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Effects of Different Fertilizer Management on Population Growth and Yield of Mechanical Transplanted Rice JIANG Xin-Lu-1 2, LI Xu-Yi-1 2, CHI Zhong-Zhi-1 2, ZHENG Jia-Guo-12*, WANG Shao-Hua-3, LIN Shi-You-3, YE Li-3 2014, 20(2): 45-49.  DOI: 10.3969/j.issn.1006-8082.2014.02.012 Abstract ( )   PDF (535KB) ( )   Nitrogen fertilizer management is crucial for population regulation and nitrogen fertilizer supplying under certain nitrogen application. Using super rice Dexiang4103, Qyou8 and Eryou602 as materials, the effects of nitrogen fertilizer management on the population growth and yield were studied under certain nitrogen application level （13 kg/667 m2）. The nitrogen fertilizer management included traditional fertilizer management, improved fertilizer management for mechanical transplanted rice, optimized fertilizer management for mechanical transplanted rice. The results indicated that it was beneficial to optimizing population and improving panicle traits by using optimized fertilizer management for mechanical transplanted rice , so it gained higher yield. The tiller development was more quickly under optimized fertilizer management, and the time when tiller number reached 18×104/667 m2 was one week earlier than others, the effective panicle was decreased, but the panicle traits included number of primary branches per panicle, grains per panicle and seed setting rate were improved. At last, the yield was higher 8.20% and 3.78% than traditional fertilizer management and improved fertilizer management for mechanical transplanted rice.

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Study on Ridge-bed, No Tillage and Water Saving Cultivation Techniques under Rice Intensification System in Southern Sichuan YUAN Ya-Li-1, PAN Shi-Jiang-1, YANG Qi-1, ZHANG Zheng-Rong-2, LUO Li-2, LI De-Hui-2, ZHANG Hong-Lian-2, CHEN Xiao-Gang-2 2014, 20(2): 50-52.  DOI: 10.3969/j.issn.1006-8082.2014.02.013 Abstract ( )   PDF (393KB) ( )    In order to explore a simple and efficient rice production model in winter fallow field, ridge-bed, no tillage and water saving cultivation techniques under rice intensification system was developed based on the production status and annual circulation features in southern Sichuan. The results showed that it can increase rice yield of 100 kg and save cost of 100 yuan per 667 m2, and it provided a practical demonstration and technical support for efficient cultivation of rice in southern Sichuan.

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Effects of Ultrasound on Seed Germination, Yield and Yield Components of Rice YUAN Jing-Tian-1, YAN Jin-Xuan-2, WANG De-Feng-1, CAO Ming-1, KE Yong-Chun-1* 2014, 20(2): 53-55.  DOI: 10.3969/j.issn.1006-8082.2014.02.014 Abstract ( )   PDF (372KB) ( )   Effects of ultrasonic treatment on rice germination, yield and yield components, of hybrid rice variety Longyou 619, conventional rice varieties Nanyuhongxian and Nanyuheixian, were studied in greenhouse cultivation and field experiments. The 20 kHz and 40 kHz frequency ultrasound were used on rice seed for 30 min, with no ultrasound treatment as the control. The results showed that ultrasonic treatment increased the yield of Longyou 619 and Nanyuhongxian, by 26.2% and 13.7% compared to the control; ultrasonic treatment increased panicles per unit area of Longyou 619 by 12.8% compared with the control, but had no efects on the panicles per unit area of Nanyuhongxian with the control, and increased grain weight of Nanyuhongxian by 10.3% compared with the control, and had no effects on the grain weight of Longyou 619 and on total grains, filled grains per panicle and seed setting rate of Longyou 619 and Nanyuhongxian. The germination rate of Longyou 619 decreased by 8.43 percentage points after ultrasonic treatment, but the other two varieties had no significant changes.

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Key Cultivation Techniques of Wheat - rice Double Cropping System for 1 000 kg/667 m 2 YU Zhen-Xian-1, ZHOU Bin-Shan-2 2014, 20(2): 56-58.  DOI: 10.3969/j.issn.1006-8082.2014.02.015 Abstract ( )   PDF (446KB) ( )   After several years of experiment and demonstration, the annual double crop rotation system of wheat-rice is becoming the dominant planting system in the functional areas of grain production in Yuyao City. In this paper，the key cultivation techniques of the planting systems was summarized, which include selecting fine varieties, optimizing the cultivation methods, implementing the mechanical operation and ripening cultivation techniques.

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Identification of High Yield Mid-season Hybrid Rice Suitable for Different Cultivation Patterns in Winter Water-logged Field HU Xiao-Gang-1, ZHANG Lin-2, FAN Qing-Hua-1, XIONG Hong-2, ZHU Yong-Chuan-2, GUO Xiao-Yi-2, ZHOU Xing-Bing-2, LIU Mao-2, XU Fu-Xian-2* 2014, 20(2): 59-60,62.  DOI: 10.3969/j.issn.1006-8082.2014.02.016 Abstract ( )   PDF (362KB) ( )   In this paper, the adaptation of mid-season hybrid rice to different cultivation patterns was studied in winter water-logged field. The experiment was conducted with 20 mid-season hybrid rice combinations in 3 cultivation patterns: high-density with low-fertilizer（HL）, mid-density with mid-fertilizer（MM） and low density with high-fertilizer（LH）. The results indicated that there are highly significant differences of grain yield between 3 cultivation patterns, 20 mid-season hybrid rice combinations and the interaction of cultivation patterns with hybrid rice combinations. It is showed that the average grain yield of 20 hybrid rice combinations in 3 cultivation patterns is HL＞MM＞LH, and some suitable hybrid rice combinations was selected for different cultivation pattern.

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Planting Performance and High Yield Cultivation Techniques of Yongyou 12 in JiangXi Province CHENG Fei-Hu 2014, 20(2): 61-62.  DOI: 10.3969/j.issn.1006-8082.2014.02.017 Abstract ( )   PDF (285KB) ( )   Three-line indica-janponica hybrid rice Yongyou 12 was bred by Ningbo institute of agricultural sciences and Ningbo seed company. It was introduced in Jiangxi Province from 2011, and showed mainly characteristics of large and more grains per spike, high and stable yield, lodging resistance and fertilizer tolerance. This paper introduced the planting performance and high yield cultivation techniques of Yongyou 12 planted as single season rice in Jiangxi Province.

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Effects of Different Seedling Number per Hill on Tillering and Yield of Machine-transplanted Japonica Rice WANG Qi-Lan-1, YU Huai-Zhou-2*, XIE Peng-Fei-2, YANG Shu-Bin-1 2014, 20(2): 63-65.  DOI: 10.3969/j.issn.1006-8082.2014.02.018 Abstract ( )   PDF (305KB) ( )   Field experiment was conducted on the effects of different seedling number per hill on tillering and yield of machine-transplanted japonica rice cultivar Huaidao 9. The results showed that the tillering position, tillering occurrence rate, grain number per spike, 1000-grain weight and yield of machine-transplanted japonica rice were decreased with the increase of seedling number per hill The spike rate increased at first, then decreased and then increased with the increase of seedling number per hill.

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Analysis on Yield Difference of Super Hybrid Rice Guiliangyou 2 for Early Rice and Late Rice Planting in Guangxi Province WANG Qiang-1, LIANG Tian-Feng-1*, TANG Mao-Yan-1, CHEN Lei-1, ZHANG Xiao-Li-1, CHEN Ren-Tian-1, CHEN Cai-Hong-1, LI Wei-2, 吕Rong-Hua-1 , ZHANG Zong-Qiong-1 2014, 20(2): 66-68.  DOI: 10.3969/j.issn.1006-8082.2014.02.019 Abstract ( )   PDF (364KB) ( )   Guiliangyou 2 is the first super rice variety of Guangxi Province, bred by rice research institute of Guangxi academy of agricultural sciences, with the characters of high and stable yield potential, wide adaptability and high lodging resistance. Guiliangyou 2 can be grown as both early rice and late rice, the yield of early season rice was higher than that of late season rice. The results indicated that higher grain yield of early season rice was partly rely on greater spikelets per m2 and higher seed setting rate. Some cultivation techniques were suggested to reduce the yield difference.

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Breeding and Application of a New Rice Variety Yuenongsimiao with Good Quality and Disease Resistance HE Xiu-Ying, LIAO Yao-Ping-*, CHEN Zhao-Ming, CHENG Yong-Sheng, CHEN Yue-Han, LIU Wei 2014, 20(2): 69-70.  DOI: 10.3969/j.issn.1006-8082.2014.02.020 Abstract ( )   PDF (244KB) ( )   Yuenongsimiao is a new rice variety with good quality and disease resistance, bred by rice research institute of Guangdong academy of agricultural sciences. The yield of Yuenongsimiao in first trial and repeated trial in Guangdong region were 420.72 kg/667 m2 and 437.82 kg/667 m2, significant higher than the control variety. It has the following characteristic: Grain quality of GB-quality 2, high resistance to rice blast, resistance to bacterial blight, compact plant type, lodging resistance, good color in maturity. It was administrated by Guangdong variety approval committee in 2011. It was selected as the leading variety of Guangzhou city in 2012 and 2013, and the leading variety of Guangdong province in 2013.

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Breeding of Multi-Genotype Variety Duojixin 3 and the Description of Its Traits XU Chao-Fei-1, LI Hua-Jun-1, LI Xiao-Fang-1, 2* 2014, 20(2): 71-73.  DOI: 10.3969/j.issn.1006-8082.2014.02.021 Abstract ( )   PDF (389KB) ( )   Taking the first commercialized multi-genotype variety duojixin 3 as an example, the paper clarified some doubts on accurate multi-genotype variety from breeding technology，seed production and seed law enforcement, and analyzed the significance of precise multi-genotype breeding on crop breeding and seed industry development.

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Characteristics and Cultivation Techniques of New Glabrous Scented Rice Variety Jia 58 GAO Rong-Cun, LU Jin-Gen, LI Peng, LI Jin-Jun 2014, 20(2): 74-75.  DOI: 10.3969/j.issn.1006-8082.2014.02.022 Abstract ( )   PDF (312KB) ( )   Jia 58 is the first glabrous late japonica rice in China, bred by Jiaxing academy of agricultural sciences in Zhejiang Province associated with institute of genetics and developmental biology, Chinese academy of sciences. This article introduced the characteristics and cultivation techniques of Jia 58.

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Breeding and High Yield Cultivation Techniques of a New Rice Variety Jijing 511 GUO Gui-Zhen-1, ZHANG Kui-Lin-2, YANG Chun-Gang-1, QIU Zhi-Gang-1 2014, 20(2): 76-77.  DOI: 10.3969/j.issn.1006-8082.2014.02.023 Abstract ( )   PDF (239KB) ( )   Jijing 511 is a new rice variety with good grain quality, high yield and multi-resistance, approved by Jilin variety approval committee in 2012. The paper described its origin, breeding process and characteristics, and its high yield cultivation techniques.

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Breeding and Cultivation Techniques of Shengdao 18, A New Rice Variety with Good Quality, High Yield and Disease Resistant ZHU Wen-Yin-1, XU Feng-Wen-2, JIANG Ming-Song-1, CHEN Feng-1, XU Jian-Di-1, ZHU Qi-Song-1, YANG Lian-Qun-3*, MA Jia-Qing-1 2014, 20(2): 78-79.  DOI: 10.3969/j.issn.1006-8082.2014.02.024 Abstract ( )   PDF (268KB) ( )   Shengdao18 is a conventional japonica rice cultivar, bred by Shandong rice research institute with pedigree method. It has good performances in plant type and color, the whole growth period 160 d and plant height 96.5 cm. It is identified as an erect panicle type, with total grains 153.4 and filled grains135.3 per panicle, seed setting rate of 88.2% and 1000-grain weight 25.4 g. Shengdao 18 has good eating quality, and resistence to rice stripe disease and rice blast. It was registered and released by Shandong provincial crop variety approval committee in May 2013, and suitable for cultivation in wheat-rice rotation districts of south and south-west of Shandong province and Dongying region.

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Breeding and Utilization of New Rice Variety Lianjing 10 FANG Zhao-Wei, LI Jian, CHI Ming, FAN Ji-Wei, CHEN Ting-Mu, YANG Bo, ZHOU Zhen-Ling 2014, 20(2): 80-81.  DOI: 10.3969/j.issn.1006-8082.2014.02.025 Abstract ( )   PDF (306KB) ( )   Lianjing 10 was bred with lianjing 321 as the female parent and Zhe 405 as the male parent by Lianyungang academy of agricultural sciences. It is suitable for planting in the middle region of Jiangsu Province. Lianjing 10 is semi-compact plant type，big panicle，medium tillering ability, good group uniformity and good color in mature period，good resistance especially to rice stripe disease and black-streaked dwarf disease.

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Characteristics and Cultivation Techniques of Japonica Rice Variety Longjing 35 in Cold Area WANG Rui-Ying 2014, 20(2): 82-83.  DOI: 10.3969/j.issn.1006-8082.2014.02.026 Abstract ( )   PDF (278KB) ( )    Longjing 35 is a japonica rice variety with early maturity, high yield, good quality, disease resistance and cold resistance, It was registered and released by crop variety approval committee of Heilongjiang Province in 2012. This paper introduced its breeding, yield performance, characteristics and cultivation techniques.

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Breeding and Cultivation Tecchniques of Fine Quality, Disease-resistant Japonica Rice Variety Hujing 1 YAN Ying, LU Jia-An, ZHAO Zhi-Peng, WAN Chang-Zhao, WU Shu-Jun-* 2014, 20(2): 84-85.  DOI: 10.3969/j.issn.1006-8082.2014.02.027 Abstract ( )   PDF (291KB) ( )   Hujing 1 is a medium maturing late japonica rice variety with fine quality, high yield and high resistance to rice stripe virus, bred by crop breeding and cultivation research institute, Shanghai academy of agricultural sciences. It was released by Shanghai crop variety approval committee in July 2011. Hujing 1 is suitable for planting in Shanghai, northern Zhejiang, south Jiangsu and their surrounding areas.

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Breeding and Cultivation Techniques of a New High-yielding Two-line Hybrid Rice Combination Peiliangyou 3309 ZONG Wei-Xun-1, DENG Han-Ru-2, ZHENG Xi-1, LIN Jian-Yong-1, CHEN Ming-Xia-1 2014, 20(2): 86-87,89.  DOI: 10.3969/j.issn.1006-8082.2014.02.028 Abstract ( )   PDF (409KB) ( )   Peiliangyou 3309 is a new two-line hybrid rice combination, derived from high-quality photo-thermo sensitive genic male sterile line Pei'ai 64S and restorer line 3309, bred by agriculture technology extension station of Qingyuan City. It has high yield, disease resistance, lodging resistance and cold resistance. It was registered and released by Guangdong privincial crop variety approval committee in 2010. In order to promote the large-scale application of the combination, this paper described the breeding process, characteristics, cultivation techniques and seed production points of Peiliangyou 3309.

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Breeding and Application of Super Rice Variety Chujing 28 with Good Quality LI Kai-Bin, ZHANG Tian-Chun, RUAN Wen-Zhong, XU Jia-Ping, HUANG Wen-Xing, WANG Zheng-Wei 2014, 20(2): 88-89.  DOI: 10.3969/j.issn.1006-8082.2014.02.029 Abstract ( )   PDF (270KB) ( )   Chujing 28，a new super rice variety with high yield, good grain quality, disease resistance and wide adaptability, was bred by Yunnan Province Chuxiong state agricultural sciences research and promotion institute. It was registered and released for commercial production by Yunnan Provincial crop variety appraisal committee in 2008, and comfirmmed as super rice by Chinese ministry of agriculture in 2012. This paper summarizes the breeding process, main characteristics and cultivation techniques of Chujing 28.

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Breeding and Cultivation Techniques of Japonica Rice Yujing 13 with High-Yielding and Fragrant PU Shuang-You-1, LI Gui-Yong-2*, SHEN Xiang-Hong-1, LI Quan-Qing-1, QIAN Rong-Qing-1, SHI Li-An-1, ZHANG Yu-Rong-1, FENG Jun-Hua-3 2014, 20(2): 90-,92.  DOI: 10.3969/j.issn.1006-8082.2014.02.030 Abstract ( )   PDF (294KB) ( )   Yujing 13 is a new high-yielding and fragrant japonica rice variety, bred by Yuxi academy of agricultural sciences, derived from Nan99-8/96IRNTP94-10. It was registered by Yunnan crop variety examination committee in 2012. It has the characters of good quality, high-yielding and high resistance to rice blast.

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Preliminary Study on Green Prevention and Control Techniques for Rice Diseases and Insect Pests in Pinghu City PAN Qiu-Bo-1, CHEN Yong-Quan-2, YANG Qiang-1, LI Jian-Qun-1 2014, 20(2): 91-92.  DOI: 10.3969/j.issn.1006-8082.2014.02.031 Abstract ( )   PDF (281KB) ( )   The paper mainly introduced the implementations, main measures and techniques of green prevention and control techniques for rice diseases and pests in Pinghu city in 2012, and proposed some suggestions about the development of green prevention and integrated control techniques for rice diseases and pests.

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Research on Paddy Soil Nutrient Status and Development in Dongzhi County WU Chuan-Sheng 2014, 20(2): 93-95.  DOI: 10.3969/j.issn.1006-8082.2014.02.032 Abstract ( )   PDF (1563KB) ( )   Soil and fertilizer station of Donzhi County collected and analysed 3780 soil samples after autumn harvest from 2006 to 2012 in Dongzhi county. The results showed that the average organic matter level in paddy field soil was 26.78 g/kg; the average total nitrogen level was 1.67 g/kg, the average available phosphorus level was 19.16 mg/kg, the average available potassium level was 88.42 mg/kg, and the average pH value was 5.23. Compared to the results of the second national soil survey, the contents of organic matter, total nitrogen, available phosphorus and available potassium increased, and the increasing order of the growth rate were available phosphorus > available potassium> total nitrogen > organic matter. However, the pH value of paddy field soil decreased.

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Preliminary Report of Polypeptide Product Mixed with Nutrition Soil on Rice Yield CHEN Guo-Yan, ZHU Da-Quan, GE Lin-Qin 2014, 20(2): 96-97.  DOI: 10.3969/j.issn.1006-8082.2014.02.033 Abstract ( )   PDF (223KB) ( )   A study was carried out on different amount of polypeptide product mixed with nutrition soil on rice yield and physiology characteristics. The results showed that the rice seedling quality of polypeptide product mixed with nutrition soil had no significant difference with two comparisons, but the yields of which increased. The treatment of the highest yield was 1.5 kg/667 m2, it increased rice yields 4.57% and 10.21% compared to drug control and blank control. The polypeptide product is safe for rice, it is recommended to use in rice production.

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Effects of Different Seedling Mediums on Seedling Quality of Rice ZHANG Yun-Jiang 2014, 20(2): 98-99,102.  DOI: 10.3969/j.issn.1006-8082.2014.02.034 Abstract ( )   PDF (1069KB) ( )   Vigorous seedling cultivation was critical for rice production. In the cold ecological environment, there were some difficulties for large amount use of seedbed soil. Therefore, some new seedbed nutrient mediums were studied. The results showed that compared with rice straw, the application of carbonized rice husk + cow dung + nutrition soil as seedbed matrixs was conducive to improve rice seedlings plumpness and promote seedling dry matter accumulation, and this formulation was more suitable than straw + cow dung + nutrition soil.

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Semi Dry Seedling Raising Techniques with Floppy Disk ZHANG Yu 2014, 20(2): 100-102.  DOI: 10.3969/j.issn.1006-8082.2014.02.035 Abstract ( )   PDF (449KB) ( )   In order to solve the problem of limited paddy soil resources, difficult disinfecting and regulating acid degrees, a new semi dry seedling raising techniques with floppy disk were developed and discussed in Huangmei county, Hubei province, based on the traditional floppy disk seedling raising techniques, rice production practice and actual operation of farmers.

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Effects of Thifluzamide to Control Rice Sheath Blight Disease WANG Xiao-Qiang, LI Xiao-Guang, DONG Ben-Chun, LIU Chang-Ping 2014, 20(2): 103-103.  DOI: 10.3969/j.issn.1006-8082.2014.02.036 Abstract ( )   PDF (107KB) ( )   The experiment of thifluzamide controlling rice sheath blight disease was conducted in Tonghua city, Jinlin Province. The result showed that the diseased panicle rate and disease index of thifluzamide treatment obviously lower than the control. There were no obviously diffrence on diseased plant rate and disease index in thifluzamide treatment and Jin. xi. tricyclazole treatment. Thifluzamide is an excellent preparation to control rice sheath blight disease and could be used in rice production.

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Thinking about the Development of Black Rice Industry in Yangxian SHI Rong-Bo, DENG Bang-Hua, DAI Guo-Hong, HE Jun-Ying 2014, 20(2): 104-105.  DOI: 10.3969/j.issn.1006-8082.2014.02.037 Abstract ( )   PDF (316KB) ( )   The paper described the characteristics and problems of black rice production and industrial development in Yangxian county, and proposed  some  ideas on industrialization development of black rice.

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Research Progress on Colored Rice Breeding in Guangxi Province LUO Tong-Ping-12 2014, 20(2): 106-108.  DOI: 10.3969/j.issn.1006-8082.2014.02.038 Abstract ( )   PDF (537KB) ( )   The author overviewed the type and special nutrients of colored rice in Guangxi province, and proposed the corresponding countermeasures according to the situation and problems of colored rice breeding.