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20 July 2014, Volume 20 Issue 4 Previous Issue    Next Issue

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Advances on Molecular Mechanism of Auxin in Rice Root KANG Shu-Jing-12, QIAN Qian-1, ZHU Li-1 * 2014, 20(4): 1-8.  DOI: 10.3969/j.issn.1006-8082.2014.04.001 Abstract ( )   PDF (831KB) ( )   Rice root is the main organ for nutrient and water absorption, its growth and development are regulated by several plant hormones collaboratively. Of which，auxin is the extensively studied. In this paper, the author elucidate the development process and molecular mechanism of rice root architecture by analyzing the regulating genes that have been cloned. Comprehensive analysis reveals that the root shape is altered by auxin biosynthesis genes that regulate auxin concentration. Auxin transport regulate the development of lateral root and crown root through controlling auxin influx and efflux. Auxin signal transduction, which affects the root system, is regulated by TIR1、Aux/IAA and ARF. Besides the distrubition of auxin is influenced by acting with other plant hormones. However，these cloned root shape genes in rice is still insufficient, and the outline of molecular regulation network of auxin is not clear. Therefore，it is important to further understand molecular mechanism of auxin in rice root by screening and collecting rice auxin mutants with root mutations.

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Study on the Variation and Comparative Advantage of Regional Rice Production Structure in China LIU Shu-Tong, LI Chun-Sheng-*, FANG Fu-Ping, ZHANG Xiao-Hui, MAO Yi-Jian, KONG Xian-Qin, ZHANG Ke-Qin, WU Rong-Liang 2014, 20(4): 9-13.  DOI: 10.3969/j.issn.1006-8082.2014.04.002 Abstract ( )   PDF (505KB) ( )   Based on the panel data of provincial rice production in China from 1985 to 2011, the trend of Chinese provincial grain structure variation and the comparative advantage of rice areas was analyzed by the index of production concentration degree and comparative advantage. The results showed that rice production concentration degree in the middle and lower reaches of Yangtze River was about 48% since 1985. And the degree in the southeast coast fell from 27.21% in 1985 to 17.36% in 2011, while the degree of northeastern area was raised from 3.16% in 1985 to 15.87% in 2011. Comparative advantage analysis showed that the comparative advantage in middle and lower reaches of Yangtze River and southeast coast areas were significant, but northeastern area was not. The three rice production areas should make the best of their own producing advantage to balance our nation’s rice supply and demand, thus ensuring our food security.

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Temporal Changes in Major Types Rice Cultivars Planting in Zhejiang Province in 1999-2013 WANG Ren-Bei-1, TONG Qi-Jue-1, WU Wei-Cheng-2 2014, 20(4): 14-17.  DOI: 10.3969/j.issn.1006-8082.2014.04.003 Abstract ( )   PDF (369KB) ( )   The temporal changes in the number of major cultivars and percentage of production area for the top five cultivars were analyzed according to production area of different types of rice cultivars in Zhejiang province since 1999. Compared to 1999, Which is the former year of the Seed Law of the People's Republic of China implemented, the total number of rice cultivars applied in Zhejiang Province was almost similar since 2002, but the number of hybrid late rice combinations increased gradually, whereas the number of conventional rice cultivars except for late indica rice cultivars declined year by year. The percentage of production area of top five hybrid late indica rice combinations reduced year by year, while that of conventional late japonica rice cultivars increased gradually. The production area of hybrid late japonica rice combinations increased sharply, while that of conventional late japonica rice cultivars reduced dramatically. During the period of 1999-2013, the major  rice cultivar was replaced at least once.

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Changes in Agronomic Traits and Physiological Characteristics of Rice Varieties and Breeding Process in Jilin Province WU Zhi-Hai-1, 2 , DI Yu-Ting-2, LING Feng-Lou-2, JIANG Nan-2, CUI Jing-Jing-2, XIAO Jin-Chuan-2, ZHAO Guo-Chen-1, XU Ke-Zhang-2 2014, 20(4): 18-24.  DOI: 10.3969/j.issn.1006-8082.2014.04.004 Abstract ( )   PDF (883KB) ( )   Since the 20th century, rice varieties have undergone five updates in Jilin province, and the yield reached 535 kg/667 m2 in 2011. Based on the review of the history of rice breeding in Jilin province and the results of previous studies, the systematic study results about agronomic and physiological characteristics of bred rice varieties in Jilin province, the author proposed agronomic traits and plant type of super rice breeding. And also suggested that the plant physiological function should be considered  in the scientific breeding. The key important reference index is the photosynthetic capacity of top three leaves.

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Characteristics of Nitrogen Nutrition and Optimal Nitrogen Application for Direct Seeded Rice LI Xu-Yi-1, ZHU De-Feng-2, JIANG Xin-Lu-1, CHI Zhong-Zhi-1, ZHENG Jia-Guo-1* 2014, 20(4): 25-28.  DOI: 10.3969/j.issn.1006-8082.2014.04.005 Abstract ( )   PDF (554KB) ( )   The study focused on characteristics of nitrogen nutrition and optimal nitrogen application, detailed characteristics of nitrogen uptake and influence factors of nitrogen uptake and utilization for direct-seeded rice,  and reviewed research profile on optimal nitrogen application for direct-seeded rice. At last, the article puts forward the future key research direction of nitrogen application technology for direct-seeded rice under agricultural scale management.

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Study on Population Characteristics and Yield in Different Type of Rice Varieties with Bowl-seedling Mechanical-transplanting Method ZHOU Xing-tao, XIE Cheng-lin*, YAO Yi ZHOU Xing-Tao, XIE Cheng-Lin-*, YAO Yi 2014, 20(4): 29-32.  DOI: 10.3969/j.issn.1006-8082.2014.04.006 Abstract ( )   PDF (460KB) ( )   The population characteristics and yield components of different type of rice varieties, conventional japonica rice Wuyunjing 24 and hybrid rice Yongyou 2640 were studied in the high-yielding demonstration of bowl seedling mechanical-transplanted rice. The results showed that the seedling quality and rooting ability, dry matter accumulation after heading and lodging capacity of Yongyou 2640 were significantly higher than Wuyunjing 24. The yield of Yongyou 2640 was 6.4% higher than that of Wuyunjing 24.

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Analysis on Quality Traits and Yield of Rice Varieties Approved in China in 2013 LIN Hai, PANG Qian-Lin, WANG Zhi-Gang, E Zhi-Guo 2014, 20(4): 33-37.  DOI: 10.3969/j.issn.1006-8082.2014.04.007 Abstract ( )   PDF (492KB) ( )   Among 422 rice varieties registered by crop variety approval committee in China in 2013, there were 20 conventional indica rice, 180 three lines Indica hybrid rice, 80 two lines Indica hybrid rice, 15 three lines japonica hybrid rice, 3 two lines japonica hybrid rice, 113 conventional japonica rice. Average yield of conventional indica rice 463.35 kg/667 m2, three lines Indica hybrid rice 539.70 kg/667 m2, two lines Indica hybrid rice 557.03 kg/667 m2, conventional japonica rice 584.80 kg/667 m2, japonica hybrid rice 629.95 kg/667 m2. Quality compliance rate of Japonica rice（58.78%） was significantly better than indica rice（39.08%）, conventional rice （59.40%） better than hybrid rice（38.30%）. Rice quality of hongke 79, jinongda 878, jinsui 9, taiyou 390, wuyouhuazhan, huang huazhan and yueqixinzhan are better. Less varieties is with excellent comprehensive performance resistance.

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Rice Culture Rethinking（6）: Rice and Grain Administrating-China Grain Administrating on Rice Variety and Techniques Development PANG Qian-Lin, LIN Hai, WANG Zhi-Gang 2014, 20(4): 38-40.  DOI: 10.3969/j.issn.1006-8082.2014.04.008 Abstract ( )   PDF (470KB) ( )   he grain administrating on the development of dwarf rice varieties, hybrid rice combinations, super rice varieties, rice cultivation techniques, rice and grain quality supervision in China are discussed in the paper. It showing that the development of rice variety and technique is achieved under governor’s planning and managing, although it is cann’t do without sci-tech personnel's efforts.

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Breeding of Low-amylose Content Late Japonica Rice and its Taste Quality Analysis LU Jin-Gen-1, GAO Rong-Cun-1, LI Peng-1, XU Mei-Ling-2, LI Jin-Jun-1* 2014, 20(4): 41-45.  DOI: 10.3969/j.issn.1006-8082.2014.04.009 Abstract ( )   PDF (720KB) ( )   The demand for high quality rice with good taste is increasing with the improvement of people's living standard. Many researches have been breeding rice cultivars with improved tasting quality that is tailored for the demands of urban and rural residents in late japonica rice area of the middle and lower Yangtze River. The two rice cultivars Jia 58 and Jia 66 are both derived from crosses of a glabrous rice variety and a late japonica variety. Jia 58 is the progeny of a cross between Jia 0664 and Jia33. Jia 0664 is derived from the America glabrous rice variety Rico No.1, which has a good tasting quality and low-amylose content. Jia 66 is the offspring of WP177 crossed with DC92, another derivative of a glabrous rice variety. Both of our new rice varieties were selected based on their low amylose content（about 10%）, good tasting quality, high yield and broad disease resistance. Jia 58 was recommended by Hangzhou city for single-season regional trial in Zhejiang Province in 2011, and the production trial and extended trial were carried out simultaneously in 2012. The variety was approved by crop variety approval committee of Zhejiang Province in 2013. During 2010 to 2013, Jia 58 was planted more than 1,000 hm2.

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Study on Tillers and Panicle Formation in Early Rice with Different Cultivation Methods CHEN Shao-Jie-1, QIN Ye-Bo-2, GUO Huan-Ru-1 2014, 20(4): 46-47,45.  DOI: 10.3969/j.issn.1006-8082.2014.04.010 Abstract ( )   PDF (306KB) ( )   Based on the study of tillers and panicle formation in early rice with 3 cultivation methods, The author found that the tillers from 4，5 and 6 leaf position were main tillers. The panicle percentage from tillers in machine-transplanted, seedling throwing and hand-transplanted rice were 80.0%，80.0% and 95.8%，and the contributive rate to yield were 49.8%，46.6% and 60%, respectively. The panicle type of machine-transplanted rice was bigger, and had bigger contribution to yield.

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Effects of Shift Part of Nitrogen Fertilizer from Basal-tillering to Panicle Initiation on Grain Yield of Mid-season Hybrid Rice and Ratoon Rice LIU Ming-Xing-1, ZHANG Lin-2, FAN Qing-Hua-1, XIONG Hong-2, ZHOU Xing-Bing-2, ZHU Yong-Chuan-2, JIANG Peng-2, LIU Mao-2, GUO Xiao-Yi-2, XU Fu-Xian-2* 2014, 20(4): 48-50.  DOI: 10.3969/j.issn.1006-8082.2014.04.011 Abstract ( )   PDF (321KB) ( )   Effects of shift part of nitrogen fertilizer from basal-tillering to panicle initiation on grain yield of mid-season hybrid rice and ratoon rice were investigated with 20 rice combinations in two nitrogen application strategies. The results showed that the average grain yield of 20 hybrid rice combinations was higher than that of traditional fertilizing method. There were 5 combinations’ grain yield of main crop rice and 9 combinations’ grain yield of ratoon rice higher than traditional fertilizing method. Considered to the total yield of main crop rice and ratoon rice, there were 3 combinations’ grain yield significant higher than traditional fertilizing method.

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Effects of Nitrogen Application Strategies on Rice Quality of Mid-season Hybrid Rice in Winter Water-logged Field XU Fu-Xian, ZHANG Lin, XIONG Hong, ZHU Yong-Chuan, LIU Mao, GUO Xiao-Yi, ZHOU Xing-Bing, JIANG Peng 2014, 20(4): 51-53.  DOI: 10.3969/j.issn.1006-8082.2014.04.012 Abstract ( )   PDF (327KB) ( )   An experiment was carried out to study the effects of nitrogen management on rice quality with hybrid rice Chuanxiangyou 9838 in winter paddy field. The results showed that the nitrogen application amount and nitrogen distribution had no significant effects on brown rice rate, head rice rate, chalky rice rate, gel consistency and amylose content; the nitrogen application amount had highly significant negative correlation with chalkiness degree and highly significant positive correlation with protein content, but had no significant correlation with length-width ratio. The nitrogen distribution has different effects on chalkiness degree in 2011 and 2012, and had no significant correlation with protein content.

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Study and Field Demonstration on Mechanical Precision Hill-direct-seeded Rice Cultivation in Zhejiang Province JIN Guo-Qiang-1, WANG Dan-Ying-2, WANG Zai-Man-3, JI Cheng-Lin-2, XU Chun-Mei-2, CHEN Song-2, ZHANG Xiu-Fu-2* 2014, 20(4): 54-56,64.  DOI: 10.3969/j.issn.1006-8082.2014.04.013 Abstract ( )   PDF (548KB) ( )   Field trials and demonstration of different cropping patterns were carried out to promote the application of direct seeding rice production in Zhejiang Province. The results showed that when planting density was 23 5000/hm2, the yields of mechanical precision hill-direct-seeding rice were similar to hand transplanting rice, but higher than direct seeding rice. The advantages of mechanical direct seeding were early tillering and more tillers. Compared to hand transplanting rice, the grains per spike were decreased by 7.92%, 24.88% and 15.68%, however the effective panicles were increased by 11.75%, 21.92% and 31.11% respectively. Experimental demonstration showed that mechanical hill-direct-seeding rice could achieve high yields.

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Effects of Yonghao Liquid Fertilizer on Seed Germination and Plant Development in Rice ZHANG Cai-Xia-1, YANG Xue-Qin-1, YANG Yong-Jie-1, FU Guan-Fu-1, YANG Hui-Ju-2, TAO Long-Xing-1* 2014, 20(4): 57-59.  DOI: 10.3969/j.issn.1006-8082.2014.04.014 Abstract ( )   PDF (405KB) ( )   Yonghao liquid fertilizer is a compound fertilizer and plant growth regulators, produced by Qinghai Yonghao Biological Technology Co., LTD. The experiment was conducted to explore the effects of Yonghao liquid fertilizer on seed germination and plant development in rice. The results showed that seed-soaking with Yonghao liquid fertilizer obviously increased grain yield by 5%. The main contribution to yield were the increments both in panicle numbers and fertile grain numbers per panicle. At the same time,  the Yonghao treatment also increased the seed setting rate by 0.7 to 7.5 percentage points.

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Effects of Different Fertilization Amount on Quality of Rice Shennong 9741 SHANG Quan-Yu-12, YANG Xiu-Feng-1, 吕Guo-Yi-1 , WANG Wan-Xia-1, HAN Kang-Shun-2, ZHANG Wen-Zhong-2* 2014, 20(4): 60-61.  DOI: 10.3969/j.issn.1006-8082.2014.04.015 Abstract ( )   PDF (267KB) ( )   The effects of different fertilization amount on grain quality of rice Shennong 9741 was studied in the filed. The results indicated that there are significant correlation between application levels of nitrogen fertilizer and head rice rate, protein content. There are significant or very significant correlation between application levels of N、P、K fertilizers and chalky rice rate. There are significant negative correlation between application levels of nitrogen fertilizer and grain width, whiteness of fine rice.

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Effects of Different Sowing Dates on Grain Yield and Agronomic Characteristics of Hybrid Rice Combination Tianyou 8019 2014, 20(4): 62-64.  DOI: 10.3969/j.issn.1006-8082.2014.04.016 Abstract ( )   PDF (369KB) ( )   Comparative experiment of five sowing dates and one transplanting date was conducted in field. The results showed that Tianyou 8019 belongs to temperature-sensitive variety, but the variation of seedling age is larger. In this experiment, Tianyou 8019 was planted in Quzhou as late rice. It has compact plant type, high lodging resistance, high spike rate and grain number, bigger panicles and high yield potential. However, suitable sowing date is the key to get high yield. In this experiment, sowing date at June 20 to 25, keeping seedling age at 30~35 d, transplanting at suitable leaf age 8.9~9.4, maintaining 3.08~3.27 vegetative growth leaves were key cultural techniques to achieve the high yield and high efficiency.

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Experiments and Demonstrations of Zhongzao 39 with Precise and Quantitative Direct Seeding Cultivation SHOU Jian-Yao-1, 2 , YANG Chang-Deng-2, QI Hang-Ying-1 2014, 20(4): 65-68.  DOI: 10.3969/j.issn.1006-8082.2014.04.017 Abstract ( )   PDF (489KB) ( )   Zhongzao 39 is a new conventional super rice variety with high yield, good quality and high resistance, bred by China National Rice Research Institute. It was introduced to planting in Zhuji City in 2009, and showed wide adaptability, good resistance and great yield potential. It was recommended as the main push super early rice in Zhuji City. A high yield cultivation technology system with precise and quantitative direct seeding cultivation of Zhongzao 39 was summaried in the paper after 3 years experiments and demonstrations.

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Effects of Water Saving Irrigation on Population Growth Characteristics of Rice in Cold Area YU Yan-Min, WU Hong-Tao, ZHANG Shu-Li, ZHAO Bei-Ping, SONG Li-Juan, GAO Hong-Ru, YANG Zhong-Liang, LI Kun 2014, 20(4): 69-70，73.  DOI: 10.3969/j.issn.1006-8082.2014.04.018 Abstract ( )   PDF (338KB) ( )   The effects of 3 water saving irrigation models namely shallow-wet-dry irrigation, intermittent irrigation and aerobic irrigation on population growth characteristics of rice were studied. The results indicated that the tillering process was delayed, tiller number was increased by 27～54 tillers/m2 compared with conventional irrigation. The spike rate were increased by 3.2%, 13.9%, 12.8% respectively. Root dry weight and root shoot ratio were higher than conventional irrigation.

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Effects of Sowing Date on Growth and Yield of Direct-seeding Rice in Chengdu Plain CHI Zhong-Zhi-1, LI Xu-Yi-1, JIANG Xin-Lu-2, ZHENG Jia-Guo-1* 2014, 20(4): 71-73.  DOI: 10.3969/j.issn.1006-8082.2014.04.019 Abstract ( )   PDF (348KB) ( )   The effects of sowing date on growth and yield of direct-seeding rice was researched through pot experiment by using three-line hybrid rice Dexiang 4013 and Chuanzuo 6 you 177 in Chengdu plain. The results indicated that along with the delayed sowing date, the whole growth period was shortened, the number of leaves on main stem reduced, leaf emergence speed was accelerated. Under the condition of the same basic seedling number, along with the delayed sowing date, the maximum tiller number per plant, the earbering tiller percentage and the yield were decreased.

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Experiment and Demonstration of Mechanical Potted Seedling Transplanted Rice Dai-Xing-Yu 2014, 20(4): 74-75.  DOI: 10.3969/j.issn.1006-8082.2014.04.020 Abstract ( )   PDF (221KB) ( )   Experiment and demonstration were conducted to study the effects of mechanical potted seedling transplantied rice. The results showed that the yield and benefits increased by 12.5%~17.7% and 17.1%~31.9%. The method can raise good seedling quality, ensure the seedling number, greatly improve the labor efficiency, and conducive to the realization of the rice production of fine quality, high yield and efficiency.

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Breeding and Applicationg of a New Hybrid Rice Combination Xinrongyouhuazhan LIN Yong, YANG Bai-Jian, ZENG Qing-Kui, DU Juan 2014, 20(4): 76-77.  DOI: 10.3969/j.issn.1006-8082.2014.04.021 Abstract ( )   PDF (267KB) ( )   Xinrongyouhuazhan，derived from Xinrong A and Huazhan, is a new three-line hybrid rice combination developed by Beijing Kings Nower Seed S&T Co. Ltd and China National Rice Research Institute. It was certified for commercial production by Jiangxi and Hunan Provincial Crop Variety Appraisal Committees in 2013, respectively. The breeding procedure and major characteristics of xinrongyouhuazhan, and the key points of its grain production and seed production techniques were introduced in the paper.

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Breeding and Cultivation Techniques of Mid-season Hybrid Rice Chuanguyou 6684 with High Amylose Content ZHOU Xing-Bing, ZHANG Lin, XIONG Hong, XU Fu-Xian, ZHU Yong-Chuan, LIU Mao, GUO Xiao-Yi 2014, 20(4): 78-79.  DOI: 10.3969/j.issn.1006-8082.2014.04.022 Abstract ( )   PDF (291KB) ( )   Mid-season hybrid rice Chuanguyou 6684 was a new three-line hybrid rice combination, bred by Sichuan Academy of Agricultural Sciences with Chuangu A as female parent and Luhui 6684 as male parent. It has good and stable yield, proper maturity, strong resistance and high amylose content, and approved by Sichuan Provincial Crop Variety Appraisal Committee in 2013.

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Planting Performance and Cultivation Techniques of New Rice Variety Huahang 31 with Good Quality and Disease Resistance LIU Chao-Dong-1, LI Hui-Zhu-1, FENG Jin-Qian-1, TAO Ji-San-1, CHEN Shi-Jun-1, LIU Yong-Zhu-2, WANG Hui-2 2014, 20(4): 80-81.  DOI: 10.3969/j.issn.1006-8082.2014.04.023 Abstract ( )   PDF (281KB) ( )   New rice variety Huahang 31 was bred by National Engineering Research Center of Plant Space Breeding. It was introduced to plant in Jiangmen county since 2011. After two years of experiments and demonstrations, it showed high yield, fine quality, good adaptability and resistance, suitable for planting in a large area in Jiangmen region. It's high yield cultivation techniques are summarized.

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Breeding and Utilization of Good Quality Hybrid Rice Chuan358You625 YUAN Xiao-Zhen, LI Yun-*, LIU Jie, LIU Xing-Yi, FU Wei 2014, 20(4): 82-83.  DOI: 10.3969/j.issn.1006-8082.2014.04.024 Abstract ( )   PDF (258KB) ( )    Chuan 358 you 625 is a new hybrid rice combination, developed from the cross of a new restorer Luhui 625 and sterility chuan 358A, bred by Rice and Sorghum Research Institute, Sichuan Academy of Agricultural Sciences. It was characterized by strong adaptability, good stability, fine grain quality, high yield, lodging resistance, cold resistance, good color of later period. It was registered and released for commercial production by Chongqing Crop Variety Approval Committee in 2013.

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Breeding and Cultivation Techniques of Indica Red Rice Cultivar Yuehongbao CHEN Jian-Wei, WU Dong-Hui, LIU Chuan-Guang, ZHOU Xin-Qiao, CHEN Da-Gang, LI Li-Jun, CHEN You-Ding-* 2014, 20(4): 84-85.  DOI: 10.3969/j.issn.1006-8082.2014.04.025 Abstract ( )   PDF (299KB) ( )   Indica red rice cultivar Yuehongbao was bred from the cross of Zhongerruanzhan × Zhaoqinghongmi by pedigree breeding method. The female parent Zhongerruanzhan is a good quality indica rice cultivar, and the male parent Zhaoqinghongmi is a red-pericarp indica rice. Yuehongbao is a high yield cultivar with medium resistance to blast, good quality and redbrown rice. The grains of Yuehongbao have high iron and zinc content.

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Breeding and Cultivation Techniques of a New Rice Variety Suijing 14 XIE Shu-Peng, WANG Bao-Li, ZHANG Guang-Bin, NIE Shou-Jun, LIU Li-Chao, LIU Yu-Qiang 2014, 20(4): 86-87,89.  DOI: 10.3969/j.issn.1006-8082.2014.04.026 Abstract ( )   PDF (399KB) ( )   Suijing 14，Which derived from kendao 10 and suijing 3, was bred by Suihua Branch of Heilongjiang Academy of Agricultural Sciences. It was registered by Heilongjiang Provincial Crop Variety Approval Committee. It has compact plant type, green leaf, good resistance to rice blast, strong resistance, good quality and taste.

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Breeding and High Yield Cultivation Techniques of Rice Ai-hua-si-miao with Good Quality HUANG Dao-Qiang-1, ZHOU Shao-Chuan-12*, LI Hong-1, LU De-Cheng-1, LAI Sui-Chun-1, WANG Zhi-Dong-1, ZHOU De-Gui-1, WANG Zhong-Rong-1, LI Kang-Huo-1 2014, 20(4): 88-89.  DOI: 10.3969/j.issn.1006-8082.2014.04.027 Abstract ( )   PDF (265KB) ( )   Ai-hua-si-miao, bred by Rice Research Institute of Guangdong Academy of Agricultural Sciences , registered in Guangdong Province in 2013, is a good quality rice variety with rice quality up to 2nd grade by GB and Guangdong provincial standard, and can be used in early season rice or late season rice. It has middle resistance to blast, middle resistance to bacterial blight, and middle tolerance to cold.

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Demonstration Summary and High Yield Cultivation Techniques of Hybrid Rice C Liangyouhuazhan GAO Guang-Jin-1, CHEN Tian-Chun-2, XIE Bang-Zhong-3 2014, 20(4): 90-91.  DOI: 10.3969/j.issn.1006-8082.2014.04.028 Abstract ( )   PDF (288KB) ( )   C Liangyouhuazhan is a new two line hybrid combination. It has strong tillering, high panicle rate, balanced growth, more spikes and full grains in the demonstration of 6.67 hm2 in Hubei Province. The rice has reached the yield standard of super rice with 11,865 kg/hm2 in field test production.

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High Yield Plant Type Index and Key Cultivation Techniques of Machine Transplanted Rice Huaidao 14 CAO Jin-Hua-1, SHI Guang-Yue-2*, XU Ji-Mei-2, ZHANG Yong-Jin-2, MIN Hong-Xing-1 2014, 20(4): 92-93.  DOI: 10.3969/j.issn.1006-8082.2014.04.029 Abstract ( )   PDF (305KB) ( )   This paper introduced the characteristics of Huaidao 14. In terms of leaf length, tillering number, distribution of internode length, spikelets per panicle and number of green leaves, the authors proposed some quantization Indexes of plant type and key cultivation techniques for 10.5 t/hm2 of machine transplanted rice, including cultivation of suitable-age rice seedling, enough planting density and basic seedlings, scientific management of fertilizer and water, comprehensive control of weeds, pests and diseases, to provide technical support for the application of this new variety in machine transplanted rice in Huai’an City.

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Studies on the Pesticide Control Techniques of Sesamia inferens at Rice Panicle Stage FENG Cheng-Yu 2014, 20(4): 94-97.  DOI: 10.3969/j.issn.1006-8082.2014.04.030 Abstract ( )   PDF (463KB) ( )   Comparative experiment of pesticides, spray volume and control date were performed in the field in order to control the Sesamia inferens at rice panicle stage. The results showed that the control effects of several pesticides against sesamia inferens at rice panicle stage were good, including chlorantraniliprole, phenthoate, avermectins·diazinon, avermectins·triazophos, avermectins·sumithion, dimethoate·triazophos and triazophos·dipterex. Among these pesticides, chlorantraniliprole and phenthoate have obvious control effects at both egg hatching stage and low instar larvae stage. We suggest that the spray volume of water should be 1000 kg per hm2. When Sesamia inferens occurred seriously, pesticides should be sprayed twice consecutively at the beginning and the peak period of egg hatching. If necessary, the pesticides should be sprayed at the peak period of low instar larvae.

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Control Effect of Trichogramma japonicum on Chilo suppressalis in Rice SI Zhao-Sheng-1, CHEN Ji-Guang-1, SONG Xian-Dong-1, GONG Xiang-Yu-1, ZHAO Yun-Feng-2, DI Hong-Wei-2 2014, 20(4): 98-100.  DOI: 10.3969/j.issn.1006-8082.2014.04.031 Abstract ( )   PDF (382KB) ( )   The experiment and demonstration of artificially releasing Trichogramma japonicum were conducted in rice field to control Chilo suppressalis in 2012. Three treatments of parasitoids-releasing field, farmers’self-controlling field and contrast were set up in this experiment. The date of realising Trichogramma japonicum is during the beginning peak hatching period of Chilo suppressalis. The rice area is 6 670 m2 and 3 times releasing, the total amount of Trichogramma japonicum are 300 000. The results indicated that the average insect damaged plant rate was 3.28%, the average control effect was 79.62%. It is important to release Trichogramma japonicum to control the Chilo suppressalis, protect the ecological environment of paddy fields and improve rice quality.

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Screening Lodging Resistance Rice in Cold Area LIU Wei 2014, 20(4): 100-101.  DOI: 10.3969/j.issn.1006-8082.2014.04.032 Abstract ( )   PDF (242KB) ( )   Lodging is an important limiting factor of rice yield. In this study, the author idenfified the lodging resistance of 203 germplasm resources, in order to the utilization of rice germplasm.

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Planting Performance and High Yield Cultivation Techniques of High Quality Rice in Wuling Mountainous Areas ZHANG Shi-Hui, ZHAO Zheng-Hong, LI Mao-Yang 2014, 20(4): 102-105.  DOI: 10.3969/j.issn.1006-8082.2014.04.033 Abstract ( )   PDF (708KB) ( )   Limited by geographical conditions, high quality rice varieties are not suitable for planting in Wuling Mountainous areas where is once regarded as restricted area of conventional high quality rice production. By doing variety-screening experiments and cultivation techniques improvement in Yongshun city and Xuan’en city for several consecutive years, Hunan rice research institute explored the high yield（>7.5 t/hm2）and high efficiency cultivation techniques of high quality rice planting in Wuling Mountainous areas, and summarized a set of practical and technical measures.

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Analysis and Countermeasures for the Development of Grain Production in Huzhou FENG Zhong-Ping, WANG Yi-Chun, ZHOU Ke-Ming, WANG Yun-Hua 2014, 20(4): 106-108.  DOI: 10.3969/j.issn.1006-8082.2014.04.034 Abstract ( )   PDF (456KB) ( )   The paper reviewed the development course of grain production in Huzhou City since the reform and opening up, analyzed the main currently facing problems, and proposed some countermeasures for the stable development of grain production, namely: to improve the understanding, strengthen organizational leadership; strengthen infrastructure, improve the comprehensive ability; enhance technical integration, promote the mode innovation; increase policy support, mobilize the enthusiasm of farmers.