论文部分内容阅读
随着旱作农业的发展,在小麦生产上对旱地品种的选育普遍引起重视。目前以评选优良小麦旱地品种为主要目标的区域试验也相应地加强。但在评价品种的优劣上仍沿用各点亩产均数法。从旱作农业上来看,这种方法需要进一步改进。为了较确切地评价旱地小麦品种,我们提出了三个评价参数:稳产指数、旱作潜力系数、稳潜积。现以81—82年度,黄淮旱地小麦品种(系)区域试验资料进行分析,来探讨黄淮旱地小麦品种评价指标的问题。
With the development of dry farming, the selection of dryland varieties in wheat production has drawn great attention. At present, the regional trials with the main objectives of selecting good dryland varieties of wheat are also correspondingly strengthened. However, in the evaluation of the merits of the varieties are still using the average point per mu method. From dry farming, this method needs further improvement. In order to evaluate the wheat cultivars in dryland accurately, we proposed three evaluation parameters: stable yield index, potential coefficient of dry-farming, and stable yield. Now 81-82 years, the Yellow River and the dryland wheat varieties (lines) regional test data analysis to discuss the evaluation of wheat cultivars in the Yellow River drought problems.