期刊论文

Effects of Machine-transplanted Density on Yield and Yield Formation of Lingliangyou104

中文

农业科学与技术(英文版)

1009-4229

2015

3

470-473

10.16175/j.cnki.1009-4229.2015.03.014

科技部农业科技成果转化基金项目~~；

本校为第一机构

为了探明陵两优104在湖南地区适宜的机插密度,于2013年在长沙县路口镇明月村进行了机插秧大田试验,研究了3种机插密度（33.3万、25.0万、17.5万穴/hm2）对陵两优104产量及产量形成的影响。结果表明：随着机插密度的增加,陵两优104的产量呈增加趋势,其中以33.3万穴/hm2的产量最高,为9.66 t/hm2,较25.0万穴/hm2、17.5万穴/hm2分别增加了12.2%、22.4%。在高机插密度下,陵两优104有效穗多,叶面积指数较大,冠层光辐射截获率高,叶片光合能力强,有利于增加群体干物质生产量而获得高产。

IIn order to ascertain the suitable machine-transplanted density of Lingliangyoul04 in Hunan, a field experiment was conducted in Mingyue Village of Lukou Town of Changsha County in 2013, and the effects of three machine-transplanted densities （DI： 333 000 holes/hm^2, D2 250 000 holes/hm^2, D3 175 000 holes/hm^2） on yield and yield formation of Lingliangyou104 were studied. The results indicated that the yield of Lingliangyoul04 showed an increase tendency with the increasing of machine-transplanted density; the highest yield of Lingliangyou...