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饲用甜高粱地标3号制种母本适宜种植密度研究

作  者:
赵致禧
关键词:
饲用甜高粱;地标3号;密度;制种母本
摘  要:
进行了每公顷13.90万株、12.30万株和11.10万株3个密度处理试验,以确定饲用甜高粱地标3号制种母本最佳种植密度。结果表明:饲用甜高粱地标3号制种母本种植密度与株高呈显著的正相关关系,与茎粗、穗长、穗粒数、穗粒重和千粒重呈显著的负相关关系。随着母本种植密度的增加,产量、利润和投资效率呈先增后降的趋势,母本适宜种植密度一般为12.30万株/hm2~13.90万株/hm2,最佳种植密度为12.30万株/hm2。
译  名:
Suitable Planting Density of Female Parent of Forage Sweet Sorghum Dibiao 3 for Seed Production
作  者:
ZHAO Zhi-xi;Zhangye Agricultural Science Research Institute;
关键词:
sweet sorghum;;Dibiao 3;;density;;female parent for seed production
摘  要:
The different density experiment of 139000, 123000 and 111000 plants per hectare of forage sweet sorghum were carried out in order to determine optimum planting density of female parent of Dibiao 3 for seed production. The results showed that the planting density was significantly positive correlation with plant height;meanwhile was significantly negative correlation with stem diameter, spike length, spike grain number, grain weight per spike and 1000-grain weight. With the increase of planting density of female parent, production, profits and investment efficiency showed the trend of first increasing and then dropping. The suitable planting density of female parent was commonly 123000-139000 plants/ha, and optimum planting density was 123000 plants/ha.

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