【摘要】 经对28个玉米杂交组合10个农艺性状进行遗传相关分析，结果得出：除选择中等株高与穗位高两生育性状外，对穗部性状的选择，以穗长、穗重、行粒数、百粒重为选择指标。如以5％的选择强度预期遗传进度，在所育材料中可望选育出提高德长0．59cm、穗粗0．63cm、穗重28．13g、穗行数1．7行、行粒数4．79粒、百粒重0．93g、单株粒重28．01g的长、粗、大穗、多粒、大粒型玉米新品种。更多还原

【Abstract】 In this paper,ten agrononmic characters of twenty-eight cross combination in maize were studied for genetic relation analysis. The result showed that besides the two growth characters,i. e.,medium plant height and ear height,the selection item for ear were ear length,ear weight,kemels per row, 100-kemels weight, etc.A new sort of maize has 0. 59cm ear length, 0. 63 cm ear diameter, 28. 13g ear weight,1.7 kernels rows,4. 79 kemels per row,0.93g 100-kemel weight and 28. 01g per plant is expected if 5%,genetic advance of intensity of selection is used.更多还原