论文部分内容阅读
在不同土壤水分条件下对耐旱小麦品种 (系 )的产量及其它农艺性状进行研究 ,结果表明 ,在干旱条件下 ,小麦产量与单株穗数、单株粒重、株高均呈极显著正相关 ,其相关系数分别为 0 .7955,0 .53 83和0 .4 977,而与千粒重和穗粒重呈极显著负相关 ,其相关系数分别为 -0 .542 3和 -0 .4 570。因此 ,在耐旱品种选育过程中 ,以选择单株穗数多、成穗率高的材料为宜。另外 ,根据耐旱性和产量表现 ,对试验材料进行分类。
Under different soil moisture conditions, the yield and other agronomic traits of drought-tolerant wheat cultivars (lines) were studied. The results showed that under drought conditions, the yield of wheat was significantly correlated with the number of panicle per plant, grain weight per plant and plant height The positive correlation coefficients were 0. 7955,0. 53 83 and 0 4 977 respectively, but negatively correlated with 1000-grain weight and grain weight. The correlation coefficients were -0.542 3 and -0.4 570. Therefore, in the breeding process of drought-tolerant varieties, it is advisable to choose materials with more spikes per panicle and higher spike rate. In addition, test materials were classified based on drought tolerance and yield performance.