【摘要】 以豫玉 2 8为试材 ,研究了不同种子分级对玉米的植株性状和产量表现的影响 ,结果表明 :不同级别的种子间 ,千粒重的增加对提高作物营养生长水平和产量表现有明显效果 ,大粒种子的产量分别比CK1、CK2增加 14 .5 %、2 .7% ,大粒种子和CK1的产量差异达到显著水平 ,和小粒种子的产量差异达到极显著水平。更多还原

【Abstract】 Using yuyu-28 as a trial material, a research on effect of individual trait and yield character to different type seeds is made. The result shows that the increase of weight among different seeds can improve crop nutrition and output. The output of large seeds increases by 14.5% and 27.5% than CK1?CK2,the difference between large seeds and CK1 is significant and the difference between large seeds and small seeds reaches very significant level.更多还原