Loading...

Archive

    20 July 2016, Volume 22 Issue 4 Previous Issue    Next Issue

    For Selected: Toggle Thumbnails
    Transition of Rice Production and Circulation in Japan
    WANG Ya-Liang-1, ZHU De-Feng-1*, ZHANG Yu-Ping-1, CHEN Hui-Zhe-1, XIANG Jing-1, XIAO Cang-Zhao-Nan-2, TU Wu-Li-Cang-3
    2016, 22(4): 1-7.  DOI: 10.3969/j.issn.1006-8082.2016.04.001
    Abstract ( )   PDF (870KB) ( )  

    Development of social economic makes great effects on rice production and circulation, using the dada of Japanese Agriculture, Forestry and Fisheries Province to analyze the changing of rice production mode, labor time, rice circulation and consumption channels of Japan, and then exploring the enlightenment of rice industry developing in China. Over the past 60 years, with the growing of GDP, rice planting area and yield per year decreased constantly in Japan, benefiting from transition of rice planting technology, the labor time of rice production shorten significantly, and rice yield per unit area increased gradually. With the improvement of people's living standard, rice consumption is declining, but the public demand for rice quality improved, Japan's excellent rice varieties laid the foundation of good quality. Since the 1970 s, Japanese government reduced the quantity of rice unified purchase and sale, and now rice is maily selling through JA, farmer directly selling be the complementary way of rice in circulation. Which raised the efficiency of rice circulation, and the emergence new way such as electricity further improved the benefits of the farmers. In recent years, China gradually increased the mechanization degree of rice production, and the rice market further opened, rice industry is facing a new transition, the current way of rice production and circulation is similar with Japan's rice industry situation in 1970s to 1990s. Reference from changing of the mode of production and circulation of Japan, China should actively adjust the way of rice production, expand the scale of rice production, speed up the process of rice production mechanization, increase public infrastructure construction of rice production, further guide the development of high quality rice, strengthen the construction of rice brand, make the direct connection of production and marketing.

    Development and Prospect of Indica-Japonica Hybrid Late Rice Cultivar in Zhejiang Province
    2016, 22(4): 8-12.  DOI: 10.3969/j.issn.1006-8082.2016.04.002
    Abstract ( )   PDF (685KB) ( )  

    Yongyou 6, the first strong heterosis of indica-japonica hybrid rice variety, was registered and released for commercial production in Zhejiang Province in 2005. Since then, the new concepts and technologies have been innovating to solve the problems of indica-japonica hybrid rice varieties, such as longer growth period, higher plant height and serious rice false smut. Meanwhile, the demonstration and test were conducted to strengthen the breeding, register and extension for the indica-japonica hybrid rice in Zhejiang Province. By 2015, the twenty-one indica-japonica hybrid rice varieties were registered and 1 101.7 thousands hm2 paddy field was planted. In 2015, the whole area of indica-japonica hybrid rice was up to 211.2 thousands hm2 and occupied sixty percent of total hybrid rice of Zhejiang Province. And now, Zhejiang Province already has fourteen institutes and companies being bred the indica-japonica hybrid rice varieties which adapt different kinds of paddy field, crop rotation, fertilizer application and plant protection.

    Soil Fertilizer Status and Fertilizer Strategies for Paddy Field in Southwest China
    2016, 22(4): 13-15.  DOI: 10.3969/j.issn.1006-8082.2016.04.003
    Abstract ( )   PDF (441KB) ( )  

    A field experiment with two fertilizer treatments, farmers fertilization technology and zero-fertilizer control was conducted in Sichuan Province, Yunnan Province, Guizhou Province and Chongqing Municipality. The results showed that farmers fertilization technology has the following disadvantages: input and output ratio of hybrid rice and fertilizer use efficiency are low; rice yield is low in large area, which was less than 520.9 kg/667 m2, was mainly due to low panicle number per m2. The fertilizer strategy for improving rice grain yield based on current problems in rice productivity in Southwest China were proposed in this paper.

    Production Status, Problems and Development Suggestions of Japonica Rice in Hunan Province
    2016, 22(4): 16-18.  DOI: 10.3969/j.issn.1006-8082.2016.04.004
    Abstract ( )   PDF (479KB) ( )  

    The production status and problems of japonica rice in Hunan Province were summaried in this paper from the promotion area, varieties, postpartum processing, and put forward some suggestions for the development of japonica rice production of Hunan Province.

    Research on Hill-drop Drilling and Row Drilling of Rice
    2016, 22(4): 19-20.  DOI: 10.3969/j.issn.1006-8082.2016.04.005
    Abstract ( )   PDF (245KB) ( )  

    The yield and yield components of rice under hill-drop drilling and row drilling were studied, using Huanghuazhan and Tianyou 998 as material. The results showed that the emergence rate is similar under mechanical hill-drop drilling and row drilling. In this experiment, the yield with mechanical hill-drop drilling is higher than row drilling, increased by 4.75% and 13.96% for Huanghuazhan and Tianyou 998 respectively.

    Study on Forage Characteristics of Common Wild Rice
    2016, 22(4): 21-24.  DOI: 10.3969/j.issn.1006-8082.2016.04.006
    Abstract ( )   PDF (484KB) ( )  

    The plant height, tiller numbers and dry matter of common wild rice(Oryza rufipogon Griff.)drived from Gaozhou, Guangdong, were investigated and 20 types with good performance were selected for evaluating the nutrition quality. The results showed that GZW128 had higher membership values, the highest crude protein yield and better feeding value than other varieties, it could be directly utilized. GZW107, GZW128, GZW039 and GZW110 had some superior characteristics than others, which could be utilized as forage rice breeding materials in the future. GZW107 had the highest crude protein content. GZW128 had the strongest tillering ability and highest dry matter. GZW039 and GZW110 had the lowest crude ash content and crude fiber content respectively.

    Effects of Harvest Period and Drying Techniques on Head Rice Rate in South-East of Sichuan Province
    2016, 22(4): 25-27.  DOI: 10.3969/j.issn.1006-8082.2016.04.007
    Abstract ( )   PDF (332KB) ( )  

    Under the condition of large area and high yield cultivation techniques of rice in winter water-logged field, the effects of harvest period, drying time, drying method on head rice rate were studied with Chuanguyou 642 and Rongyou 1015. The results indicated that there were very significant effects of varieties, harvest period, drying time, drying method and their interactions on the head rice rate, and the head rice rate of Chuanguyou 642 was higher than Rongyou 1015, the head rice rate of shorter drying time, method of dam drying, was higher than longer drying time and method of dustpan drying. There were very significant positive correlation between the head rice rate and the grain moisture content.

    Effects of Waterflooding on Yield of Rice Submergence Tolerance Gene Sub1A Introgression Line at Different Growth Stage
    2016, 22(4): 28-30,34.  DOI: 10.3969/j.issn.1006-8082.2016.04.008
    Abstract ( )   PDF (680KB) ( )  

    IR64 and Sub1A gene introgression line were watetflooding at seedling stage, tillering stage and heading stage, the effective tiller number, grain number per panicle, seed setting rate, thousand seed weight and single plant yield were measured to evaluate the reduction of rice yield loss by Sub1A gene. The results showed that the average single plant yield of Sub1A gene introgression line and IR64 submerged reached 39.11 g and 24.92 g at seedling stage, 10.31 g and 0.48 g at tilling stage, 24.35 g and 23.36 g at heading stage, respectively. The effective tiller number, grain number per panicle, seed setting rate, thousand seed weight and yield of Sub1A gene introgression line were all significantly higher than IR64 when waterflooding at seeding stage and tillering stage.

    Review of Several Irrigation Methods and Nitrogen Rate on Rice Yield
    2016, 22(4): 31-34.  DOI: 10.3969/j.issn.1006-8082.2016.04.009
    Abstract ( )   PDF (472KB) ( )  

    In view of the fact that the conclusion of the impact of different irrigation methods and nitrogen rate on rice yield is inconsistent, the authors analyzed the impact of three different methods of irrigation, including traditional flooding irrigation, Y-irrigation and drip irrigation, and nitrogen rate on rice yield in this paper, on the basis of consulting the domestic research literature. The results showed that Y-irrigation saves more than 32% water than traditional flooding irrigation, and drip irrigation saves more than 60% water than traditional flooding irrigation. The yield significantly increases with the increase of nitrogen rate, but it will decreases with too much nitrogen fertilizer. What’s more, water and nitrogen ratio for getting optimal yield will be different in different planting conditions, so the reasonable water and nitrogen ratio should be determined by the experiment under different planting conditions.

    Evaluation of Appraisement Method for Rice Resistance to Striped Stem Borer
    2016, 22(4): 35-38.  DOI: 10.3969/j.issn.1006-8082.2016.04.010
    Abstract ( )   PDF (522KB) ( )  

    The identification result was consistent with the resistance evaluation to striped stem borer through four different bioassay methods, including detached-leaf bioassay, detached-stem bioassay, stripping detached-stem bioassay and whole plant bioassay. The detached-leaf bioassay is considered as the most rapid and effective method for evaluating resistance ability to striped stem borer. By both detached-leaf and whole plant bioassays, the author identified transgenic rice with Vip3A gene, and further validated the identification effectiveness of the detached-leaf bioassay method. Simultaneously, our preliminary results revealed that detached-leaf bioassay could also perform an accurate identification to rice leaf roller as lepidoptera pests of rice.

    Research Progress of Manganese Fertilizer on Rice
    2016, 22(4): 39-41,45.  DOI: 10.3969/j.issn.1006-8082.2016.04.011
    Abstract ( )   PDF (552KB) ( )  

    The application of manganese fertilizer on rice at home and abroad, the form of manganese in water and soil, physiological effects and the influence of manganese on rice yield were summarized in this paper. Besides, the developing prospect of manganese fertilizer was proposed.

    Effects of Organic Fertilizers on Quality and Palatability of Rice
    2016, 22(4): 42-45.  DOI: 10.3969/j.issn.1006-8082.2016.04.012
    Abstract ( )   PDF (540KB) ( )  

    The qualities and palatability of rice under organic fertilizer processing methods were discussed in this study, with 11 varieties from north part of China as materials. The results showed that there was no significant effect on the appearance quality of rice for different organic fertilizers, but the value of organic fertilizer was higher than that of the conventional treatment. With wine waste treatment, the head rice rate was the highest, chalky grain rate and chalkiness degree were the lowest. There was no significant difference among treatment in terms of palatability, including protein content, amylose content and RVA characteristics, except for palatability characteristics value and taste on sensory test. Rice bran treatment was superior to other treatments in palatability characteristics and taste on sensory test. Protein content was the lowest on rice bran treatment. Amylose content was the lowest on conventional cultivation.

    The Yield Formation, Nitrogen Absorption and Utilization of Mechanical Transplanting Super Japonica Rice in Huaibei Area
    2016, 22(4): 46-52.  DOI: 10.3969/j.issn.1006-8082.2016.04.013
    Abstract ( )   PDF (1076KB) ( )  

    The aim for this study was to research the yield formation and characteristics of nitrogen utilization about super japonica rice in Huaibei Area. A field experiment was conducted using medium-maturing medium super japonica rice and non-super japonica rice cultivars(contrast) as materials, investigating the effects of different nitrogen application levels ( 0, 225, 300 kg/hm2). The results showed that, with the increase of N application amount, the grain yield of super japonica rice increased continuously. The highest average grain yield of the super japonica rice cultivars was 10.98% higher than that of the contrast. Compared with the contrast, more grains per panicle and population spikelets (4.8×108 /hm2) were observed in super japonica rice,with the same level of seed setting rate and thousand seed weight. The numbers of stems and tillers of super japonica rice grow earlier and faster, and the percentage of productive tillers was higher. The leaf area index and photosynthetic potential of super japonica rice was relatively low before jointing stage, and increased significantly after jointing stage. Compared with the contrast, the grain-leaf ratio of super japonica rice was higher in 3 nitrogen application levels. Compared with the contrast, the dry matter accumulation of super japonica rice was relatively lower before jointing stage, but 7.77% higher at jointing-heading stage, 6.96% higher at heading-maturity stage respectively. The N accumulations and N uptake rates of super japonica rice were higher than the contrast at every stage. This study showed that, in 3 nitrogen application levels, the super japonica rice showed obvious advantage to production in Huaibei Area. Compared with the non-super japonica rice, super japonica rice has more grains per panicle and population spikelets. And the leaf area index, photosynthetic potential, grain-leaf ratio, total dry matter accumulation and percentage of productive tillers were high. The reason why the yield of medium-maturing medium super japonica rice is higher than the contrast with similar growth period related to its strong characteristics of nitrogen absorption.

    Grain Traits and Correlation Analysis of Twin-embryonic Rice Mutated by Ion Beam
    2016, 22(4): 53-55,61.  DOI: 10.3969/j.issn.1006-8082.2016.04.014
    Abstract ( )   PDF (439KB) ( )  

    In order to tap apomictic germplasm and provide reference to a line hybrid rice breeding, a preliminary research regarding agronomic traits, grain traits, correlation between grain traits has been made on the mutant with twin-embryo seedling by ion beam in auto-tetraploid rice, the closely relative strains and mediated progeny. The results showed that the plant type of diploid strains twin seedlings was smaller, the number of spikelets main spike was more, grains was smaller, grains density was higher and largest contributed to the single grain weight, compared with the twin seedlings tetraploid strains; the plant type of elymus mediated strains was larger, the number of spikelets main spike was more, grains was larger, grain density was higher, single grain weight was higher, grain volume contributed largest to the single grain weight; the original parent were not significantly different at the indicators parameters.

    Residues and Analysis of Degradation of Difenoconazole and Azoxystrobin in Rice
    2016, 22(4): 56-61.  DOI: 10.3969/j.issn.1006-8082.2016.04.015
    Abstract ( )   PDF (767KB) ( )  

    A method for the simultaneous determination of difenoconazole and azoxystrobin in rice filed environment has been eatablished. Meanwhile, the characteristics of difenoconazole and azoxystrobin degradation and residue were investigated by field experiments in Harbin, Zhengzhou and Nanjing. The minimum detectable concentrations of difenoconazole and azoxystrobin in unpolished rice, rice shell, plant, soil and field water were 0.01 mg/kg, and the minimum detectable limit of difenoconazole and azoxystrobin was 0.2 ng. The results showed that the average recovery rates of difenoconazole and azoxystrobin in rice field water, soil, plant, rice shell and unpolished rice were in the range of 80.8%~109.5%, with their relative standard deviations of 1.7%~19.7%. The field experiments revealed that the residual dissipation dynamics of difenoconazole and azoxystrobin in plant, soil and water conformed to the first order kinetics reaction model, and they belong to easily degradable pesticide (t1/2<30 d). When the recommended dosage and 1.5 times recommended dosages of 32.5% difenoconazole and azoxystrobin SC was sprayed for 2~3 times at an interval of 15 day, the maximum residual concentration of difenoconazole and azoxystrobin on the 15th day after the last application were 0.461 mg/kg and 0.634 mg/kg respectively. These values are below the Maximum Residue Limits(MRL) for difenoconazole in rice (0.5 mg/kg) by the standards of China, and the MRL for azoxystrobin in unpolished rice (5.0 mg/kg) by the EU.

    Relationship between Incidence and Disease Factors of Bacterial Leaf Streak in Rice
    2016, 22(4): 62-64.  DOI: 10.3969/j.issn.1006-8082.2016.04.016
    Abstract ( )   PDF (338KB) ( )  

    Basis on historical information in Wenzhou during 1990-2014, the relationship between the incidence of bacterial leaf streak and occurrence time, wet days, rainfall amount, relative humidity, average temperature were conducted by approach of path analysis. The results showed that occurrence time was the greatest factor influencing the incidence of bacterial leaf streak, and other factors would promoted the bacterial leaf streak incidence when the disease broken out early.

    Analysis and Risk Assessment on Heavy Metal Contamination in Late Rice of Ningbo City
    2016, 22(4): 65-68.  DOI: 10.3969/j.issn.1006-8082.2016.04.017
    Abstract ( )   PDF (445KB) ( )  

    168 late rice samples, planted in the Ningbo City in 2014, were collected to determine six indicators including inorganic arsenic, mercury, chromium, lead, copper and cadmium contents. The evaluation on heavy metal contamination was conducted according to integrated contamination index, single contamination index and dietary health risk assessment. The results showed that the rice heavy metal contamination in Ningbo City is generally in a good condition, being at a security level, slightly higher overall contamination level in Xiangshan City and Yuyao City compared with other regions. The single element contamination is at a security level, but the Cd contamination is high, constituting a hidden safety crisis in some counties. Dietary health and safety is generally in a good condition, but Cd and Cr contamination in some samples can be a hazard for dietary health.

    Discussion on the Origin of Rice
    2016, 22(4): 69-71.  DOI: 10.3969/j.issn.1006-8082.2016.04.018
    Abstract ( )   PDF (412KB) ( )  

    This paper elucidated the origin theory of cultivated rice, based on the archaeological discovery of wild paddy and cultivated rice opal phytolith and pollen completion domestication in Wannian County, Jiangxi Province. It proposed that Wannian County is one of the birthplace of cultivated paddy in China, which provided important foundation for research the origin of Chinese cultivated rice.

    Effects of Seedling Cultivation Mate Consumption on Seedlings by Mechanical Transplanting
    2016, 22(4): 72-74.  DOI: 10.3969/j.issn.1006-8082.2016.04.019
    Abstract ( )   PDF (385KB) ( )  

    In order to explore the appropriate usage and dosage of seedling cultivation mate in the context of rice-wheat double-cropping system in Chengdu Plain, a test of different consumption on machine transplanting seedlings were studied, with hybrid rice combination Deyou 4727 as material. The results showed that seedlings grew well and seedling establishment proved higher on the 40th d of seedling cultivation, with the mode of seedling cultivation in paddy field and dryland management, the seedling cultivation mate was collected on seedling trays at 30 g per tray and mixed with nutrient soils for mechanical transplanting. What's more, such practice well controlled seedling growth and extremely promoted seedlings in terms of fresh weight, dry weight, grain plumpness, the number of root, and fresh/dry weight of root. It can be concluded that seedling cultivation mate is suitable to be applied in mechanical transplanting rice.

    Characteristics of Main Diseases and Insect Pests of Single Cropping Late Rice and Green Protection and Control Technology in Rice-Turtle Farming
    2016, 22(4): 75-76,80.  DOI: 10.3969/j.issn.1006-8082.2016.04.020
    Abstract ( )   PDF (442KB) ( )  

    According to the occurrence characteristics of main diseases and insect pests of single cropping late rice in Deqing County and rice-turtle farming demonstration, the author summed up the key techniques of rice-turtle farming with green rice production and pest control. Years of practice showed that these control measures could effectively control the occurrence of pests and diseases, reduce the amount of pesticides and achieve the green rice production.

    Analysis on yield Formation and Cultivation Techniques of Yongyou 12 with Yield of 15.44 t/hm2
    2016, 22(4): 77-80.  DOI: 10.3969/j.issn.1006-8082.2016.04.021
    Abstract ( )   PDF (524KB) ( )  

    In 2014, there were four single cropping rice fields reached 14.00 t/hm2 of grain yield in Yongkang city. The highest yield was 15.44 t/hm2, which broke the record of high yield single cropping rice in Yongkang city. This paper analyzed the weather conditions and characteristic of cultivation technique of Yongyou 12, discussed the reasons of high yield formation and the improvements in techniques.

    Operating Rules of Machine Transplanting Rice Micro-irrigation Technique for Hard Disk Substrate Concentration Seedling Raising
    2016, 22(4): 81-83.  DOI: 10.3969/j.issn.1006-8082.2016.04.022
    Abstract ( )   PDF (386KB) ( )  

    In order to meet the requirements of the mechanization of rice seedling raising target, specification based on hard disk substrates under the condition of micro-irrigation, transplanting rice seedling raising standard operation, operation process, seedling management and seedling standard is formulated in this paper.

    Effects of Zinc Fertilization on Yield and Grain Zn Concentration of Rice in the Central Hubei Province
    2016, 22(4): 84-85,87.  DOI: 10.3969/j.issn.1006-8082.2016.04.023
    Abstract ( )   PDF (356KB) ( )  

    In order to investigate the application effects of Zn on yield and grain Zn concentration of rice, a field experiment was conducted. The results showed that the application of Zn fertilizer could increase rice yield. Compared with the control (S0), the average yield of S30 treatment (30 kg/hm2 ZnSO4·7H2O) increased by 8.8%, the effective panicles and grains per spike increased by 10.2% and 7.0%, respectively. In addition, Zn fertilizer also significantly increased Zn content and Zn accumulation in individual rice organ. Compared with the S0 treatment, the Zn content and Zn accumulation of S30 treatment increased by 36.2% and 47.7%.

    Breeding and Utilization of High Yield and Blast-resistant Hybrid Rice Neixiang 6 you 9
    2016, 22(4): 86-87.  DOI: 10.3969/j.issn.1006-8082.2016.04.024
    Abstract ( )   PDF (217KB) ( )  

    Neixiang 6 you 9 is a new medium indica late maturity hybrid rice combination, bred by crossing between CMS line Neixiang 6A from the Neijiang Neixiang Agricultural S&T Co. Ltd., and restoring line Luhui 9 from Institute of Rice and Sorghum, Sichuan Academy of Agricultural Sciences. The combination showed good quality, high yield, blast resistance and wide adaptability. It was registered by National Crop Variety Appraisal Committee of China in 2015.

    High Yield Seed Production Techniques of Three-line Glutinous Indica Hybrid Rice Combination JianuoⅠyou 721
    2016, 22(4): 88-89.  DOI: 10.3969/j.issn.1006-8082.2016.04.025
    Abstract ( )   PDF (357KB) ( )  

    In order to provide scientific basis for large scale seed production, the key seed production techniques of JianuoⅠyou 721 were summarized in this article, according to the characteristics of its parents and several years of seed production practice.

    The Incoming Risk and Control of Lissorbqptrus oryzqphilus Kuschel in Southern China Breeding Base
    2016, 22(4): 90-91.  DOI: 10.3969/j.issn.1006-8082.2016.04.026
    Abstract ( )   PDF (284KB) ( )  

    Lissorbqptrus oryzqphilus Kuschel is an important quarantine pest, now it spread to the most of the rice production areas in China. There is no damage report of Lissorbqptrus oryzqphilus Kuschel in Hainan island, but it is a suitable area for Lissorbqptrus oryzqphilus Kuschel. The reproduction characteristic of Lissorbqptrus oryzqphilus Kuschel is parthenogenetic, theoretically, if one Lissorbqptrus oryzqphilus Kuschel is carried into Hainan island, it will breed a population from generation. So the spread risk of Lissorbqptrus oryzqphilus Kuschel in southern China breeding base is considerable. We should strengthen the plant quarantine to prevent Lissorbqptrus oryzqphilus Kuschel into Hainan island.

    Characteristics and High-yielding Cultivation Techniques of Two-line Hybrid Rice Combination Guangliangyou 7203 with Fine Quality
    2016, 22(4): 92-93.  DOI: 10.3969/j.issn.1006-8082.2016.04.027
    Abstract ( )   PDF (301KB) ( )  

    Guangliangyou 7203 is a new two-line hybrid rice combination developed by China National Rice Research Institute and Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, with PTGMS line Guangzhan 63s and restorer line Zhonghui 7203. It was registered by Zhejiang Provincial Crop Variety Appraisal Committee in 2013 and National Crop Variety Appraisal Committee of China in 2014. The planting performance and high yield cultivation techniques of Guangliangyou 7203 in Jiangxi Province were introduced in this paper.

    Breeding and High Yield Cultivation Techniques of Indica Rice Nanjingzhan with Fine Quality
    2016, 22(4): 94-95.  DOI: 10.3969/j.issn.1006-8082.2016.04.028
    Abstract ( )   PDF (264KB) ( )  

    Nanjingzhan is an indica rice with fine quality, bred by Rice Research Institute, Guangdong Academy of Agricultural Sciences. It has the characteristics of good and stable yield, fine quality, reached 1st level of the national standard and resistant to rice blast. It was approved by Guangdong Provincial Crop Variety Appraisal Committee in August, 2015. The breeding process and high yield cultivation techniques were introduced in this paper.

    Breeding and Application of Japonica Male Sterile Line Jia 81A with Long Grain and Fine Quality
    2016, 22(4): 96-,98.  DOI: 10.3969/j.issn.1006-8082.2016.04.029
    Abstract ( )   PDF (264KB) ( )  

    Jia 81A is a japonica male sterile Line with long grain, fine quality and independent intellectual property rights, which was cultivated by Jiaxing Academy of Agricultural Sciences associated with other units. It was identified by Zhejiang Crop Variety Identification Committee in December 2014. The breeding process and characteristics of Jia 81A were introduced in this article.

    Breeding and Cultivation Techniques of Guangyuanzhan 15 With Fine Quality
    2016, 22(4): 97-98.  DOI: 10.3969/j.issn.1006-8082.2016.04.030
    Abstract ( )   PDF (264KB) ( )  

    Guangyuanzhan 15 is a new temperature sensitive variety with fine quality, bred by Guangzhou Academy of Agricultural Sciences and Guangzhou Qiannong Agriculture Science and Technology Development Co. Ltd. It was authorized by Guangdong Crop Variety Approval Committee in 2015. Its grain quality is grade 1 by GB and Guangdong Provincial standard. It has moderate resistance to rice blast, high sensitive to bacterial leaf blight and moderate cold tolerance. The breeding process and cultivation techniques were introduced in this paper.

    Breeding of Photo Thermo Sensitive Male Sterile Line H153S
    2016, 22(4): 99-101.  DOI: 10.3969/j.issn.1006-8082.2016.04.031
    Abstract ( )   PDF (388KB) ( )  

    Low critical temperature of photo-thermo sensitive genic male sterile (PTGMS) line is one of the critical factors; it could improve seed purity by breeding the lower critical temperature of PTGMS line. H153S is a PTGMS line, bred by Rice Research Institute, Anhui Academy of Agricultural Sciences derived from the middle breeding materials 7HS006 and Lv102S. 7HS006 has the characteristics of shorter initial heading period, higher critical temperature of male fertile PTGMS line and well agronomic traits. LV102S line is a low critical temperature of PTGMS line. H153S has the characteristics of stable fertility, well reproduction ability and well agronomic traits, it would have important practical application value for two-line hybrid rice seed production and two-line hybrid rice extension.

    Efficacy of Sex Pheromone with New Type Sex Attractant Trap on Rice Chilo suppressalis
    2016, 22(4): 102-104.  DOI: 10.3969/j.issn.1006-8082.2016.04.032
    Abstract ( )   PDF (351KB) ( )  

    The trap efficiency of new dry moth traps to Chilo suppressalis was tested in this paper, total investigation of 13 times from June 20 to September 20, the cumulative moth amount is 8 605, the average per trap moth was 344. The attracting rate of sex attractant area,normal pesticide application area and no pesticide area was 1.77%, 1.19% and 81.90%, respectively. The rate of withered sheath was 1.11%, 0.65% and 14.68%, respectively. The rate of white head was 1.87%, 0.35% and 38.83%, respectively. The control effect of sex pheromone was 95.18%, 3.92 percentage point lower than that of the pesticide application area. The results showed that the new dry moth trap has the advantages of simple operation, low maintenance cost, time saving and labor saving.

    Effects of Different Insecticides on Rice Leaf folder on Late Single Season Rice
    2016, 22(4): 105-106.  DOI: 10.3969/j.issn.1006-8082.2016.04.033
    Abstract ( )   PDF (268KB) ( )  

    In order to screen biological insecticides and chemical insecticides for controlling rice leaf folder, a field test was carried out on late single season rice in Xiaoshan, Zhejiang province. The results showed that the insecticides of Emamectin flutolanil ME 240 mL/hm2, PLB + TCP, 15% Indoxacarb EC and 10% Tetrachlorantraniliprole SC and 2 billion PIB/mL Mamestra brassicae nuclear polyhedrosis virus have good control effects.

    Key Cultivation Techniques of Machine Transplanting Seed Production of Two-line Hybrid Rice Liangyou 6206
    2016, 22(4): 107-109.  DOI: 10.3969/j.issn.1006-8082.2016.04.034
    Abstract ( )   PDF (492KB) ( )  

    Liangyou 6206 is a new indica late rice by crossing two-line male sterile line Feng 6S and high quality restorer line R206, which has the characteristics of strong growth potential, moderate growth period, strong resistance, high grain quality and high yield. The seed production techniques of mechanical transplanting was conducted at Yancheng Yellow Sea Farm in 2015. Through the management of fertilizer and water, florescence microscopy and adjustment, the flower encounter and outcrossing were better and the seed yield was 3.55 t/hm2. This paper introduced the parents characteristics of Liangyou 6206 and the key cultivation techniques of machine transplanting seed production.