直立品系小冠花农艺性状和株型结构研究

Agronomic traits and plant type structure of erected crown vetch strain

对‘绿宝石’小冠花和从‘绿宝石’中选育的直立型小冠花品系在景泰的生长表现以及主要性状指标进行了比较和分析。结果表明:与‘绿宝石’小冠花相比,直立型小冠花品系有更长的青绿期,株高、生长速度及鲜草产量均大于‘绿宝石’,但茎/叶、鲜/干间无差异。通过对株高以及株型结构的分析,发现直立型小冠花品系(b=1.007 9)具有比‘绿宝石’(b=0.180 2)更合理的生产结构。

A comparison of the performances was made between crown vetch （Coronilla varia cv. ＇Lvbaoshi＇） and the erected Crown vetch strain selected and bred from the former. The results showed that the erected strain had a longer green-time and plant height. The growth speed was faster than Lvbaoshi. No significant difference was found between the stem-leaf ratio and the fresh-dry ratio. The erected strain had more reasonable spatial distribution of biomass （b= 1. 007 9） than that in Lvbaoshi （b=0. 180 2）.