旱地小麦品种七性状对产量影响的初探

Preliminary Study on Effects of Main Characters on Yield of Dry-land Wheat Varieties

据分析,旱地小麦品种的生育期、每公顷最高茎数、容重与产量的相关性较强;穗粒数和千粒重是影响小麦产量的关键因素,两者与产量的直接通径系数分别为9.568 165和9.949 188;旱地小麦穗粒数和千粒重的负相关性较强,协调两者的关系是该区小麦育种的关键。

According to analysis, the growth period, the maximum stem number per hectare, unit weight of dry-land wheat varieties had strong correlation with wheat yield. The grain number per spike and 1 000-seed weight were the key influencing factors on wheat yield, and the direct path coefficients of them with yield were 9.568 165 and 9.949 188 respectively. The grain number per spike and 1 000-seed weight of dry-land wheat had strongly negative correlation, so coordinating their relation was the key of wheat breeding in that region.