摘要
2017年11月至2018年4月对海南省南繁种植区玉米病害进行普查。普查过程中,发现17种病害。在中小苗阶段,相对发病较严重的是玉米的纹枯病、茎腐病2种病害;在种植后期,发病最严重的是玉米锈病,其次是玉米灰斑病,玉米大斑病、玉米穗腐病等。不同生育期的玉米育种种植区内,玉米病害种类相对较多,发病程度往往也对于种植物候期一致的育种基地相对较重。总体上,海南省南繁玉米种植区均管理规范,加上早中期每隔6~10 d施药一次进行预防,因此玉米生长早中期病害发生仅零星出现,后期发病相对较重。
A survey was made of the maize diseases in the Winter Breeding Area of Hainan Province from November 2017 to April 2018.The survey showed that a total of 17 main diseases infecting maize(Zea mays L.)were found in the Winter Breeding Area of Hainan Province.The major diseases infecting maize at the middle and small seedling stages were maize sheath blight and maize stalk rot,and the most serious disease at the late stage of planting were maize rust,followed by maize gray leaf spot,maize northern leaf blight and maize ear rot.There were relatively many maize diseases infecting maize at different growth stages in the maize breeding areas,and the infection of diseases was often relatively serious in the breeding sites for the maize at the same phenological phase.Generally because of the standardized management of maize planting areas in Hainan Province and the prevention of maize diseases by chemical spraying every 6-10 days at the early and middle growth stages,the occurrence of diseases was only sporadic at the early and middle stages of maize growth,but relatively serious at the late stage.
作者
郑肖兰
徐春华
郑行恺
冯艳丽
ZHENG Xiaolan;XU Chunhua;ZHENG Xingkai;FENG Yanli(Environment and Plant Protection Institute,CATAS,Haikou,Hainan 571101;Institute of Tropical Agriculture and Forestry,Hainan University,Haikou,Hainan 570228;Key Laboratory of Monitoring and Control of Tropical Agricultural and Forest Invasive Alien Pests,Ministry of Agriculture and Rural Affairs,Haikou,Hainan 571101;Hainan Key Laboratory for Monitoring and Control of Tropical Agricultural Pests,Haikou,Hainan 571101)
出处
《热带农业科学》
2019年第6期56-66,共11页
Chinese Journal of Tropical Agriculture
基金
公益性行业(农业)科研专项(No:201403075)
关键词
海南省
南繁种植区
玉米
病害调查
Hainan province
winter breeding area
maize
disease survey
