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Position: Home > Articles > A Preliminary Study on the System of Epiphytotic of Headblight of wheat in Luoning County Henan Province Journal of Henan Agricultural University 1986 (2) 147-154

河南省洛宁县小麦赤霉病流行规律的初步研究

作  者:
喻璋;刘庆元;陈志申;李大伟;王小正
摘  要:
经过三年的试验研究,初步看出我省洛宁县小麦赤霉病的发生与流行受小麦品种和气象要素的制约,而菌源活动情况又受气象要素的影响。首先在小麦品种间虽无免疫类型,但各品种的抗病性差异十分显著;其次在小麦抽穗、扬花、灌浆期(5月1日~20日),(1) 旬平均气温为18. 9~19. 8℃,都是适宜于赤霉菌子囊孢子和分生孢子萌发的温度,对赤霉病发生不是限制气象要素。(2) 旬平均雨量19. 4~48. 0毫米,旬平均相对湿度73~79%,旬平均雨日4天,连阴雨日2~3次,对赤霉病菌孢子萌发和侵染都是极为有利的环境条件,因此,是赤霉病发生流行的决定要素。(3) 旬平均日照时数71. 6~60. 1小时,对小麦生长发育不利,降低了抗病性。
译  名:
A Preliminary Study on the System of Epiphytotic of Headblight of wheat in Luoning County Henan Province
作  者:
Yu Zhang Liu Qingyuan et al
摘  要:
Studies on the headblight of wheat in Luoning County show that the wheat variety to wheat headblight on the resistance is different and the number of rainy days or more than three rainy days in succession which occurs during the period from the end of April to the middle of May(earing,blooming and milking stage)especially in the first ten days of May is a decisive factor for the epiphy- totic of the headblight of wheat.Temperature has only little influence on the ep- iphytotic.

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