不同处理对普通野生稻种子萌发及水位对幼苗存活的影响  

SEED GERMINATION AND SEEDLING SURVIVAL OF ORYZA RUFIPOGON GRIFF.UNDER DIFFERENT TREATMENTS

作　　者：刘贵华[1] 周进[1] 王海洋[1] 郭友好[1] 

机构地区：[1]武汉大学生命科学学院,武汉430072

出　　处：《武汉植物学研究》2000年第2期146-150,共5页Journal of Wuhan Botanical Research

基　　金：国家自然科学基金资助项目!(编号 :3 960 0 0 1 5)

摘　　要：研究了江西东乡和湖南茶陵普通野生稻 ( Oryza rufipogon Griff.)种群的种子在不同处理下的发芽情况 ,以及水位对种子萌发和幼苗存活的影响。结果表明 ,变温处理极显著提高了种子的发芽率 ;去稃和去种皮以及去 1 /4胚乳后种子发芽率极显著提高 ;0～ 5cm水深有利于普通野生稻种子萌发和幼苗存活。 2个种群的种子发芽率有极显著差异 。Germination rates under different treatments were examined on the seeds of two populations of Oryza rufipogon Griff.from Dongxiang in Jiangxi Province and Chaling in Hunan.Effects of water depths on seed germination and seedling survival were also examined.The results showed that seed germination rate was greatly increased by the treatments of alternating temperature,peeling off the hull and/or the seed coat,or removing 1/4 of the endosperm.Water depth of 0～5 cm enhanced both seed germination and seedling survival.There was significant difference in germination rate of the seeds from the two populations,indicating a genetic difference between them.

关 键 词：普通野生稻 种子发芽率 幼苗存活率 种子处理 

分 类 号：S511.904.1[农业科学—作物学]