五种海南冬种作物抗旱性评价  

Comparison of drought resistance of five kinds of Hainan winter crops

作　　者：颜仕龙 钱昆[2] 孟瑞 敖苏 YAN Shi-long;QIAN Kun;MENG Rui;AO Su(Hainan Meteorological Service Centre/Key Laboratory of South China Sea Meteorological Disater Prevention and Mitigation of Hainan Province,Haikou 570203,China;Hainan Institute of Meteorological Science,Haikou 570203,China;Haikou Customs/Hainan Province Engineering Research Center for Quarantine,Prevention and Control of Exotic Pests,Haikou 570311,China)

机构地区：[1]海南省气象服务中心/海南省南海气象防灾减灾重点实验室,海口570203 [2]海南省气象科学研究所,海口570203 [3]海口海关/海南省外来有害生物预警与检疫防控工程技术研究中心,海口570311

出　　处：《湖北农业科学》2020年第17期87-92,共6页Hubei Agricultural Sciences

基　　金：中国气象局旱区特色农业气象灾害监测预警与风险管理重点实验室开放研究项目(CAMF-201804);海南省重点研发计划项目(ZDYF2017056,ZDYF2018098)。

摘　　要：试验以聚乙二醇(PEG-6000)模拟干旱条件,研究其对番茄(Lycopersicon esculentum)、玉米(Zea mays L.)、白菜(Brassica chinensis)、西瓜(Citrullus lanatus)和萝卜(Raphanus sativus)5种供试作物种子萌发以及幼苗生长的影响。结果表明,在种子萌发阶段,高浓度的PEG-6000溶液对5种供试作物的发芽率、发芽势、发芽指数、发芽速率和平均发芽时间等5个指标的影响较大;采用隶属函数值综合评价分析得出,5种供试作物抗旱性强弱顺序为玉米>白菜>番茄>西瓜>萝卜。In this experiment,polyethylene glycol(PEG-6000)was used to simulate drought conditions,the effects of PEG-6000 on five species including Lycopersicon esculentum,Zea mays L.,Brassica chinensis,Citrullus lanatus and Raphanus sativus seed germina⁃tion and seedling growth were investigated.The results showed that the germination rate,germination potential,germination index,germination rate and average germination time of the five tested plants were obviously affected under high concentration PE-6000 treat⁃ment.The comprehensive evaluation of the subordinate function values showed that the order of drought resistance of the five tested plants was as follows:Zea mays L.>Brassica chinensis>Lycopersicon esculentum>Citrullus lanatus>Raphanus sativus.

关 键 词：聚乙二醇 冬种作物 抗旱性 海南省 

分 类 号：S63[农业科学—蔬菜学] S65[农业科学—园艺学]