云南农业大学学报（自然科学）2017，Vol.32Issue(3)：402-409,8.DOI:10.16211/j.issn.1004-390X(n).2017.03.003
马铃薯脱毒苗移栽期差异对病害发生及产量的影响
Influence of Transplanting Time of Potatoes Virus-free Seedlings on the Disease Epidemic and Yield
摘要
Abstract
[Purposes] The objective of this study was to explore the economic and efficiently breeding time of potato breeder seed and to provide a guidance for potato breeder seed production in Kunming area.[Methods] Potato ‘ C88’ was used as the test material and 14 transplanting time was set up.The effects of different transplanting time on disease epidemic and yield of virus-free potato plantlets under greenhouse conditions were studied which provided guidance for potato breeder seed production in Kunming area.[Results] In the greenhouse,there was a significant difference (P ＜ 0.05) in the occurrence of early blight and late blight of virus-free potato plantlets that transplanted at different time.The early blight incidence and disease index of T1 were maximal and the late blight incidence and disease index of T1 were minimal.The late blight incidence and disease index of T14 were maximal,at the same time,significantly higher (P ＜ 0.05) than other treatments.In the greenhouse,there was a significant difference (P ＜ 0.05) among breeder seed yields and the seed sizes of virusfree potatoes plantlets that transplanted at different time,which mainly reflected on the difference between seed size and seed numbers.The large and medium seed potato rate and breeder seed yield of T1,T10 and T12 were higher than other treatments.[Conclusion] The best transplanting time to virus-free potatoes plantlet is a week before or after T1 (April 4th) of first-half year,T10 (August 17th) and T12 (September 16th) of the second-half year.关键词
马铃薯脱毒苗/移栽时间/晚疫病/早疫病/原原种产量Key words
virus-free potato plantlets/transplanting time/late blight/early blight/breeder seed yield分类
农业科技引用本文复制引用
任静,陈以相,陈建斌,李作森,蒋春和,王海宁..马铃薯脱毒苗移栽期差异对病害发生及产量的影响[J].云南农业大学学报（自然科学）,2017,32(3):402-409,8.基金项目
云南省科技计划项目(云财农[2013] 364号) （云财农[2013] 364号）
云南农业大学博士科研基金(A2002257). （A2002257）
