热带农业科学
熱帶農業科學
열대농업과학
CHINESE JOURNAL OF TROPICAL AGRICULTURE
2015年
2期
62-65
,共4页
孙寅虎%张光勇%陈伟强%张建春%邓成菊%李芹%杨绍琼%刘学敏%王晓燕%黄绍忠
孫寅虎%張光勇%陳偉彊%張建春%鄧成菊%李芹%楊紹瓊%劉學敏%王曉燕%黃紹忠
손인호%장광용%진위강%장건춘%산성국%리근%양소경%류학민%왕효연%황소충
红河湿热山区%木薯枯萎叶斑病%病情指数%危害率
紅河濕熱山區%木藷枯萎葉斑病%病情指數%危害率
홍하습열산구%목서고위협반병%병정지수%위해솔
hot and humid mountainous area in Honghe%cassava withered leaf spot disease%disease index%harm rate
采用定点监测、分级调查法对云南省红河湿热山区木薯枯萎叶斑病发生规律进行研究,结果表明：(1)该病害的发生、发展规律受温度及降雨量的影响,5月高温时开始发病,进入雨季后尤其是8月份病情开始大规模扩散,10月达到峰值,危害率达57%～77%；(2)不同栽培地区该病病情指数及危害率有明显差异,其中病情指数河口地区＝2.15＞金平地区＝1.78＞个旧地区＝1.28,危害率河口地区＝31.64%＞金平地区＝26.71%＞个旧地区＝26.00%；(3)低海拔地区的危害率及病情指数均基本大于高海拔地区。
採用定點鑑測、分級調查法對雲南省紅河濕熱山區木藷枯萎葉斑病髮生規律進行研究,結果錶明：(1)該病害的髮生、髮展規律受溫度及降雨量的影響,5月高溫時開始髮病,進入雨季後尤其是8月份病情開始大規模擴散,10月達到峰值,危害率達57%～77%；(2)不同栽培地區該病病情指數及危害率有明顯差異,其中病情指數河口地區＝2.15＞金平地區＝1.78＞箇舊地區＝1.28,危害率河口地區＝31.64%＞金平地區＝26.71%＞箇舊地區＝26.00%；(3)低海拔地區的危害率及病情指數均基本大于高海拔地區。
채용정점감측、분급조사법대운남성홍하습열산구목서고위협반병발생규률진행연구,결과표명：(1)해병해적발생、발전규률수온도급강우량적영향,5월고온시개시발병,진입우계후우기시8월빈병정개시대규모확산,10월체도봉치,위해솔체57%～77%；(2)불동재배지구해병병정지수급위해솔유명현차이,기중병정지수하구지구＝2.15＞금평지구＝1.78＞개구지구＝1.28,위해솔하구지구＝31.64%＞금평지구＝26.71%＞개구지구＝26.00%；(3)저해발지구적위해솔급병정지수균기본대우고해발지구。
Fixed-point monitoring and classification survey was investigated in order to study the occurrence regularity of cassava withered leaf spot disease in Honghe of Yunnan hot and humid mountainous area. The results showed: (1)the occurrence and the rule of development of the disease are influenced by temperature and rainfall. The disease begin at high temperature in May, and the disease quickly spread in August, especially, the high peak appeared in October. At the time the harm rate is 57%~77%.(2) The disease index and the hazard rate have obvious difference in different cultivation area, the disease index was 2.15 in Hekou area, 1.78 in Jinping area, 1.28 in Gejiu area, the harm rate was 31.64%in Hekou area, 26.71% in JInping area, 26.00% in Gejiu area. (3)Harm rate and the disease index almost low altitude serious is greater than the high altitude.
