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种子特性是种子质量评价的基础。本文研究了28份羊草(Leymus chinensis)种质的颖果性状。结果表明:外稃和颖果长宽在种质间、地域间均存在显著差异;多数种质的內外稃都不易脱落,但外稃较內稃易于脱落;外稃长与颖果长、颖果长与千粒重、颖果宽与颖果比重极显著相关(P<0.01)。而内稃脱壳指数与外稃长及颖果长、千粒重与外稃宽均显著相关(P<0.05)。这些研究结果对羊草种质资源评价和利用具有参考价值。
Seed characteristics are the basis for seed quality evaluation. In this paper, the caryopsis traits of 28 Leymus chinensis germplasms were studied. The results showed that there were significant differences in the length and width between the outer and the caryopses in germplasm and between the regions. Most of the germplasm did not come off easily, but the outer ones were more likely to fall off than the inner ones. Fruit length and grain weight, berry width and the proportion of caryopsis extremely significant correlation (P <0.01). However, the shelling index of inner rips was significantly correlated with the length of outer leaves and the length of caryopses, the weight of one thousand kernels and the width of outer ridges (P <0.05). These results have reference value for the evaluation and utilization of Leymus chinensis germplasm resources.