GUO Shu-mei,NIU Zhen-fu.Effect of Temperature and Moisture to Sporangium Survival of Cucumber Downy Mildew[J].Northern Horticulture,2012,36(23):142-144.
温湿度对黄瓜霜霉病菌孢子囊存活的影响
- Title:
- Effect of Temperature and Moisture to Sporangium Survival of Cucumber Downy Mildew
- 文章编号:
- 1001-0009（2012）23-0142-03
- 分类号:
- S 436.421.1+1
- 文献标志码:
- A
- 摘要:
- 以“鲁黄瓜3号”黄瓜为试材，研究了温湿度对其霜霉病菌孢子囊存活的影响。结果表明：温湿度对孢子囊的存活有显著的影响，随温度的升高孢子囊的存活率降低，恒温条件下10、15、20和25℃存活期为3~6 d；30℃为3 d；35℃时新鲜孢子囊存活期为1 d。饱和相对湿度条件下的孢子囊存活率最高，并且与相对湿度75%和45%时孢子囊存活率存在明显差异。
- Abstract:
- Taking ‘Luhuanggua No.3’ cucumber as test materials,the effect of temperature and moisture on survival of sporangia was studied in controlled conditions.The results showed that temperature and humidity had significant difference on survival of sporangia.The survival ratio deceased with the increase of temperature.Only 2% sporangia were survived after 24 hours treatment at 35℃.Saturated humidity was favor of the survival of sporangia and the effect of dry condition on the survival of sporangia was complicated.At dry condition (RH=45%)，the survival ratio increased with the increase of temperature，and reached the peak at 25℃，then decreased with increase of temperature.Kept in environment with constant temperature，life-span of fresh sporangia was 1 d at 35℃，3 d at 30℃ and 3~6 d at 10，15，20 and 25℃，respectively.
参考文献/References:
[1]Cohen Y，Roten J.Field and growth chamber approach to epidemiology of Pseudoperonospora cubensis?cucumbers[J].Phytopath,1971,61:736-737. [2]石延霞,李宝聚,刘学敏.黄瓜霜霉病研究[J].东北农业大学学报,2002,33(4):391-395.
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GUO Shu-mei,NIU Zhen-fu.Effect of Temperature and Moisture to Sporangium Germination and Formation of Cucumber Downy Mildew[J].Northern Horticulture,2012,36(23):151.
[2]党悦嘉,白玲玲,张艳菊,等.黄瓜霜霉病菌SSR遗传多样性分析[J].北方园艺,2017,41(06):130.[doi:10.11937/bfyy.201706030]
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[3]付璐,付涵,张星哲,等.黄瓜霜霉菌对氟吗啉的抗药性风险研究[J].北方园艺,2018,42(14):6.[doi:10.11937/bfyy.20180325]
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[4]国淑梅,牛贞福.光照对黄瓜霜霉病菌孢子囊存活率的影响[J].北方园艺,2012,36(18):157.
GUO Shu-mei,NIU Zhen-fu.Effect of Light to Sporangium Survival of Cucumber Downy Mildew[J].Northern Horticulture,2012,36(23):157.
备注/Memo
第一作者简介：国淑梅（1975-），女，山东聊城人，硕士，讲师，现主要从事植物病理的教学与科研工作。E-mail:ngygsm@163.com.