摘要
研究冬季持续低温对番石榴种植的影响,为南宁及其周边地区番石榴种植提供科学化的越冬种植方案。2020年12月至2021年1月,广西南宁市出现了最低气温低于10℃的持续低温天气,持续时间为28天。1月甚至出现了最低气温低于5℃的极端低温天气,持续时间为5天。本研究对农业农村部南宁番石榴种质资源圃内保存的26份番石榴种质资源进行了寒害情况调查,结果显示,大部分种质资源都出现了不同程度的寒害损伤,其中,有8份种质资源出现了叶片受害面积大于60%的情况,有10份种质资源新抽梢芽与嫩叶出现褐斑、抽缩、生长缓慢等迹象。基于此调查结果,提出加强肥水管理、保温防寒措施等越冬种植方案。
The effect of sustained low temperature in winter on guava was studied to provide scientific plan for guava planting in Nanning and its surrounding areas.From December 2020 to January 2021,the cold weather with the lowest temperature below 10℃lasted for 28 days in Nanning,Guangxi.In January,the lowest temperature was below 5℃,prolonging for 5 days.In this study,cold damages to 26 guava germplasms in Nanning guava germplasms nursery were investigated.The results showed that most of the germplasms had suffered varying degrees of cold damage.Among them,8 germplasms had more than 60%of leaf damaged areas,and 10 germplasms had the signs of brown spot,shrinkage and slow growth in new shoots and leaves.Based on the investigation results,put forward the overwintering planting plan such as strengthening management of fertilizer and water,measures of heat preservation and cold protection.
作者
宁琳
陈豪军
何江
莫干辉
潘祖建
NING Lin;CHEN Haojun;HE Jiang;MO Ganhui;PAN Zujian(Guangxi Subtropical Crops Research Institute,Nanning,Guangxi 530001,China)
出处
《农业研究与应用》
2021年第2期63-67,共5页
Agricultural Research and Application
基金
广西农业科学院稳定资助科研团队项目“特色水果研究”(桂农科2021YT146)。
关键词
番石榴
寒害调查
适应性分析
越冬种植
Guava
chilling injury investigation
countermeasures
overwintering planting
