超级杂交稻“淦鑫688”在鄱阳湖区作双季晚稻的产量、产量构成因素分析及其生产对策研究  

Analysis on the Yield and Yield Components of Super Hybrid Rice Ganxin688 Cultivated in the Poyang Lake Region of Jiangxi Province as Double-season Late Rice and Its Cultural Practices

作　　者：方加海[1] 陈小荣[1] 石庆华[1] 潘晓华[1] 

机构地区：[1]作物生理生态与遗传育种教育部重点实验室/江西省作物生理生态与遗传育种重点实验室,江西农业大学农学院,江西南昌330045

出　　处：《江西农业大学学报》2009年第5期837-840,共4页Acta Agriculturae Universitatis Jiangxiensis

基　　金：国家科技部“国家粮食丰产科技工程项目”(2006BAD02A04);南昌市科技局“超级晚稻新品种筛选及栽培技术集成研究与示范”

摘　　要：对淦鑫688在鄱阳湖区作双季晚稻的产量及其构成因素的相关和通径分析表明,每公顷穗数对产量的直接作用和净作用最大,每穗粒数次之。当每公顷穗数少于2.55×106和理论产量在每公顷8.80×103kg以下时,增穗是增产的关键;当每公顷穗数多于3.00×106和产量在每公顷1.00×104kg以上时,关键是提高每穗总粒数。还提出了淦鑫688高产的穗粒结构及其栽培策略。The correlated responses of yield and yield components from the correlative and path coefficient analysis of Ganxin688 cultivated in the Poyang Lake Region of Jiangxi Province as double - season late rice showed that the direct and net effects of the number of the panicles per hectare on the yield were the maximum, while those of the number of grains per panicle closely took the second place. When the effective panicles in the field were below 2.55 ×10^6 and theoretic yield per hectare under 8.80 ×10^3kg, the increment of total effective panicles should be considered as the key factor in raising the yield. However, when the effective panicles and yield per hectare were higher than 3.130×10^6 and 1.00 ×10^4 kg respectively, efforts should be made to increase grains per panicle. In addition, the reasonable yield components for high yield and the corresponding cultural practice were suggested in this paper.

关 键 词：双季晚稻 超级杂交稻“淦鑫688” 产量及其构成因素 栽培策略 

分 类 号：S511.01[农业科学—作物学]