摘要
本研究采用8个品种(系),分别组建3个抗赤霉病轮回选择基础群体,制定了实施轮回选择方案和选择技术。经一轮选择,群体平均发病小穗数有所减少,群体抗赤霉性有了明显提高,通过几轮选择,从中选出了9个抗赤霉病品系,经江苏、浙江,福建建阳等地植保研究所进行自然和人工接种赤霉菌接种鉴定结果属中抗一抗级。农艺性状也有同步提高。本文还就亲本抗性稳定性,接种鉴定技术以及选择技术进行探讨。
Three basic communities resistant to scab(Gibberella Zeae(schw) Petch) were separately established with eight varieties (Lines) in recurrent selection program. It was found that the mean mumber of diseased spikelets and the resistance of community were improved obviously after a recurrent selection circle. Nine wheat lines resistcnce to scab were selected through several recurrent selection circles and their resistance to scab was ranged from mid-resistance to resistance by natural and artificial inoculating identification in Plant Protection Institutes of Jiang Su,. Zhe Jiang, Jian Yang region of Fu Jian etc. , while agronomic characters were also improved simultaneously in. there resistant lines.The resistance stability of parent, techniques of inoculation and selection are also discussed here.
出处
《华南农业大学学报》
CAS
CSCD
1993年第2期55-60,共6页
Journal of South China Agricultural University
关键词
小麦
赤霉病
轮回选择
抗病性
Wheat scab (Gibberella Zeae (schw) Patch)
Resistance to spread
Recurrent selection
