【摘要】 选取贵州地区广泛种植的具有较好耐瘠高产特性的12个玉米品种,利用在中低肥力土上筛选出耐瘠性强的品种和在高肥力土上展现出较高的产量空间的方法,采取与生产相近的条件,筛选出了适合黔中地区推广的耐瘠优质的玉米品种遵玉8号、农大108和黔单16号等。利用耐瘠与不耐瘠玉米在主要性状上的对比鉴定,找出了与玉米耐瘠相关的根数、根系体积、根重和地上部鲜重等几个指标,为耐瘠玉米的评价建立了一定的基础。更多还原

【Abstract】 Zunyu 8,Nongda 108 and Qiandan 16,the maize varieties with barren tolerance and good quality,were selected from 12 maize varieties with the characteristics of good barren tolerance and high yield under two different soil fertility for popularizing them in Qianzhong areas.The indexes(root number,volume of root system and fresh weight of the aerial part) related to the barren tolerance were established by comparison identification of main agronomic traits between varieties with barren tolerance and varieties without barren tolerance,which provides the certain basis for evaluation of varieties with barren tolerance.更多还原