【作者】 杨晓； 胡尚钦； 童文； 牟方生； 黄璐琳； 杨伟华；

【Author】 YANG Xiao~1 HU Shang-qing~1 TONG Wen~1 MU Fang-sheng~1 HUANG Lu-lin~1 YANG Wei-hua~2 1.Industrial Crop Search Institute,Sichuan Academy of Agricultural Sciences,Jianyang 641400,China; 2.Cotton Research Institute of CAAS;Supervision and Inspection and Testing Center of Cotton of MOA,Anyang 455000,China

【机构】 四川省农业科学院经济作物育种栽培研究所； 中国农业科学院棉花研究所；

【摘要】 采用三因素三水平的不完全设计研究氮肥、密度和缩节安对抗虫杂交棉生长发育及产量的影响,探索川杂13的优质高产栽培技术．结果表明：栽培因子对群体总果节量、成铃率、总铃数、单铃重、霜前皮棉产量及总产量均有显著影响。施氮增加铃重、籽指；增加种植密度将降低籽指和单铃重；施缩节安提高籽指,降低衣分和单铃重．建立了抗虫杂交棉川杂13的高产栽培技术模型,经回归模拟寻优,获得皮棉产量在1 650～ 1 800 kg/hm~2的技术组合为施纯氮332．0～339．6 kg/hm~2,密度36 520～37 089株/hm~2,缩节安98．0～100．8 g/ hm~2．更多还原

【Abstract】 Research on nitrogen fertilizer,density and DPC three factors influence on lint yield and quality of transgenic insect-resistance hybrid cotton by three factor three levels incompletion designs,for insect-resistance hybrid cotton’s quantity control to provide the theories basis.The results showed,applying nitrogen will improve boll weight and seed index,increasing density will decrease boll weight and seed index;Using DPC will increase seed index,but degrade boll weight.It is establish yield mathematics model by computer statistics.Through took for the better combinations:when lint yield reach between 1 650 to 1 800 kg/hm~2,technique combination of transgenic insect-resistance hybrid cotton Chuanza 13 is applying nitrogen between 332.0 to 339.6 kg/hm~2,density between 36 520 to 37 089 plant/hm~2 and DPC between 98.0 to 100.8g/hm~2.更多还原