Effect of culture media, temperature and light on radial growth and pycnidium production of cowpea isolates ofPhoma bakeriana
作者:
C. L. N. NEBANE,
E. J. A. EKPO,
期刊:
Annals of Applied Biology
(WILEY Available online 1992)
卷期:
Volume 121,
issue 3
页码: 537-544
ISSN:0003-4746
年代: 1992
DOI:10.1111/j.1744-7348.1992.tb03463.x
出版商: Blackwell Publishing Ltd
关键词: Phoma bakeriana;culture media;temperature;light;pycnidium
数据来源: WILEY
摘要:
SummaryThe effects of culture media, temperature and light on radial growth and pycnidium production of cowpea isolates (PB1, PB2, PB3) ofPhoma bakerianawere investigatedin vitro.There was no isolate effect on growth and pycnidium production but some evidence of a medium effect. Exceptionally high growth rate on two media corresponded with high pycnidium production; while low growth rates on other media were generally associated with high sporulation.There was a large temperature effect and an isolate effect on growth with a significant temperature by isolate interaction. Temperatures of 5°C, 10°C and 35°C inhibited pycnidium formation completely while the range 15–30°C had no effect on sporulation. Maximum growth and pycnidium production occurred at 25°C.Near‐ultraviolet radiation seemed to have caused higher pycnidium counts than the other light
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