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《China Rice》 2017-04
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Effects of Seed Treatments on Seedling Emergence and Yield of Direct Seeding Rice under Different Direct Seeding Methods

JIANG Xinlu;YANG Yongbo;FU Mingquan;LI Xuyi;CHI Zhongzhi;ZHENG Jiaguo;Crop Research Institute, Sichuan Academy of Agricultural Sciences;Key Lab of Water-saving Agriculture Research for Hilly Area of Southern China in Sichuan Province;Courtyard of Rice Experts in Deyang City;Chengdu Central Station of Agricultural Technology Extension;Mianzhu Bureau of Agriculture;  
A field experiment was carried out to explore the effects of seed treatments on seedling emergence and yield of direct seeding rice under different direct seeding methods. The results showed that the rate of emergence was higher in the treatment of the seeds were soaked for 48 h and showed white after germination. There were significant differences in effective panicles and 1 000-grain weight among different seed treatments, but were no significant differences in grains per panicle and seed setting rate. In wet direct seeding, the seeds were soaked for 48 hours and germination to half grain length, which was useful to improve the population size and yield traits. In conclusion, the seeds were soaked for 48 h and showed white after germination in dry direct seeding or wet direct seeding, which would have higher rate of emergence and grain yield.
【Fund】: 四川省科技厅应用基础项目(2014JY0252);; 四川省科技支撑计划项目(2015NZ0010;2016NZ0040);; 国家重点研发计划(2016YFD0300506);; 四川省财政创新能力提升工程专项(2016GYSH-008)
【CateGory Index】: S511
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