Research Article | OPEN ACCESS
Effect of Direct Sowing Rates on Mid-season 'Rice Feng-liang-you-xiang-1'
Wen-jing He, Peng-fei Li, Zhi-hua Yuan, Yan-xia Zhang, Dan-ying Xing, Xiao-jiao Xiang and Hong Lu
Agricultural College of Yangtze University, Jingzhou 434025, China
Advance Journal of Food Science and Technology 2013 4:422-424
Received: October 31, 2012 | Accepted: December 22, 2012 | Published: April 15, 2013
Abstract
To study the suitable seeding rate of middle-season rice sown directly in Jianghan Plain, 6 treatments were set up with different seeding rates for hybrid rice Feng-liang-you-xiang-1 which was sown directly: 22.5, 30, 37.5, 45, 52.5, 60 kg/hm2, respectively and the optimum seeding rate was selected. Some initiative results were made. The seeding rate influences whole growth period, yield components, yield and relative economic output of Feng-liang-you-xiang-1 significantly. It shows a quadratic curve relationship between seeding rate and whole growth period and when the seeding rates were less than 30 kg/hm2 or more than 52.5 kg/hm2, the whole growth period was obviously shortened compared with that of other seeding rate. Among the yield components, panicles, grains panicles, seed-setting rate and harvest index are effected very significantly by the seeding rate, showing a linear relationship of quadratic curve; while to 1000 seed weight the influence don’t reach the level of significant difference. And seeding rate shows in curve relation to yield (y = 2.5248x2 + 198.89x + 7620.1); when the seeding rate is 39.387 kg/hm2, the yield reaches the maximum value of 11536.95 kg/hm2.
Keywords:
Direct sowing, middle-season rice, production, seeding rate,
Competing interests
The authors have no competing interests.
Open Access Policy
This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
Copyright
The authors have no competing interests.
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ISSN (Online): 2042-4876
ISSN (Print): 2042-4868 |
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