【摘要】 在干旱地区大田条件下,通过2a调查4个大面积推广玉米杂交种在4个不同干旱处理下与耐旱性有关的14个生长发育性状,选择差异显著的性状进行农艺性状和产量性状的因子分析。结果表明,影响玉米杂交种耐旱性和耐旱稳定性的主要性状是株高、结实长度、成穗率和出籽率,可利用其预测玉米杂交种的耐旱性。更多还原

【Abstract】 The fourteen traits of four widely extended maize hybrids that related to drought tolerance were investigated in four different drought treatments under the field conditions in the arid regions, and the agronomic and yield traits significantly differing from each other were chosen for the factor analysis. The results of the analysis indicated that the traits affecting the drought tolerance and the drought tolerance stability of maize hybrids were plant height, seed-setting length, ear-setting percentage and seed-setting percentage, and could be used in predicting the drought tolerance of maize hybrids under different drought conditions in different years.更多还原