摘要
研究了长穗桑（ＭｏｒｕｓｗｉｔｉｏｒｕｍＨａｎｄ－Ｍａｚ）有性繁殖的特性，结果表明：桑籽的空秕率达７５％～９０％，千粒重０２５ｇ。饱满种子的发芽率达９２％，但发芽势差。经催芽点播后，种子一般均能成功地转化为幼苗。种子萌发以及幼苗生长有脆弱性。保水、通气、肥效足的土壤能促进幼苗健壮成长，砂壤和粘土不利于幼苗生长。
The sexual reproduction character of Morus wittiorum was studied. The main
results were as follows. The hollow seed rate of Morus wittiorum was 75%90%. The thousand
grains weight was 0.25 g. The germination rate of full seeds was 92%, but the vigor of
germination was weak. After hastening germination, the full seeds could all successfully
germinate to seedlings by spot planting. There was some weakness in seed germination and
seedling growth. The seedlings could grow vigorously in the soil that could keep water, fertilizer
and aeration in good order, but not in sand soil and clay soil.
出处
《湖北农学院学报》
1999年第2期104-106,共3页
Journal of Hubei Agricultural College
基金
湖北省自然科学基金
关键词
长穗桑
濒危植物
有性繁殖
种子
幼苗
Morus wittiorum
endangered species
sexual reproduction
seeds
seedlings
