论文部分内容阅读
经定位追踪观察 ,明确培矮 6 4S/E32具有如下有助于超高产的植株性状 :a)分蘖力中等 ,栽后 2 3～ 2 5d形成足额穗数所需的茎蘖数 ;b)每穗粒数多 ,成为构建巨大库容的主体因素 ,大穗又源于二次枝梗多 ;每穗粒数与结实率的负相关不显著 ;c)冠层叶片长而直立 ,叶幅瓦状 ,阳光可透入群体深层 ,显著提高了群体生长率和净同化率 ;d)植株较矮 ,弯曲力矩小 ,秆壁厚实 ,抗折力大 ,具有较强抗倒能力 ,倒 5及倒 4节间的倒伏指数 <1 35 ;e)根系发达 ,分枝密集成网 ,总根系达 8.8万m/m2 ,根长密度达 35cm/cm3 。
Through the tracing observation, it is clear that Pei’ai 6 4S / E32 has the following plant characters that contribute to the super high yield: a) the tillering power is medium, and the number of tillers needed to form the full number of spikes 2-3 days after transplanting; b) The number of grains per panicle was the main factor to build a huge storage capacity, and the large spike originated from secondary branches. The negative correlation between grain number per spike and seed setting rate was insignificant. C) The canopy leaf was long and erect, Shaped, the sun can penetrate deep into the group, significantly improve the population growth rate and net assimilation rate; d) shorter plants, bending moment, thick stalk wall, anti-fracture capacity, with strong anti-collapse ability, L Internode lodging index <1 35; e) Developed roots, dense branches into the network, the total root system of 8.8 million m / m2, the root length of 35cm / cm3.