摘要
对凉山光叶紫花苕Vicia villosa多生态观测分析，低山河谷区、二半山区秋季播种可完成全部生育过程，高寒山区越冬率低，随海拔增高植株性状表型值出现明显差异；经性状相关程度通径分析得出，影响产草的主要性状是叶质量和分枝长度，影响产种的主要性状是单株质量、结荚数、分枝长度；单株产种量及种子质量低山河谷区优于二半山区，原种生产区宜建在凉山低山河谷区。研究得出8月底前播种为适宜期，生产草适宜用种量60～105kg／hm^2，生产种子适宜用种量为22．5～37．5kg／hm^2，生产种子应采用冬前刈割1次后留种，生产革在冬前刈割1次，开春后刈割1～2次。
Ecological observation and analysis on Liangshan Shinyleaf Purpleflower Tetch （Vicia villosa） Was carried out. It can fully complete all growth stages by autumn sowing in the river valleys of low mountains or in areas of mid mountain slopes. In alpine areas there are low winter surviving rates. Performance values for plants＇ characters have significant differences with increasing altitute. Path correlation analysis of characters showed that, main factors affecting forage yield were leaf weight and branches length, and main factors affecting seed yield were weight per single plants, pod number,branch length; seed yield per plant and seed quality were better in river valleys of low mountains than that in mid mountain slopes, thus areas for prime seed production should be established in the river valleys of low mountains. The study gave the end August as the suitable sowing period, sowing rate was 60-105 kg/hm^2 for forage production, 22.5-37.5 kg/hm^2 for seed production. For seed production pre-winter cutting before being left to run to seed; one pre-winter cutting for forage production, and 1-2 cutting at the beginning of the following spring.
出处
《草业科学》
CAS
CSCD
2006年第3期30-34,共5页
Pratacultural Science
关键词
凉山光叶紫花苕
不同生态区
生物性状
产草产种因素
Liangshan Shinyleaf Purpleflower Vetch （Vicia villosa）
different ecological zone
biological character
factors affecting forage and seed prodtuction
