01760naa a2200313 a 450000100080000000500110000800800410001910000170006024500980007726000090017552007990018465000230098365000300100665000190103665000300105565000260108565000100111165000240112165000220114565000210116765000220118865300320121065300280124265300230127070000210129370000220131470000160133677300940135219349302012-09-27       2012    bl uuuu     u00u1 u    #d1 aCOSTA, L. B.  aImpact of UV-B radiation on Clonostachys rosea germination and growth.h[electronic resource]  c2012  aAbstract: Sensitivity to UV-B radiation is one of the main limitations of biological control of plant pathogens in the field. The effect of UV-B radiation on germination and leaf tissue colonization by the biological control agent Clonostachys rosea was evaluated. There were variations among C. rosea strains in sensitivity to UV-B radiation. The most tolerant strain (LQC62) had relative germination of about 60% after irradiation of 4,2 Kl m-2. The deleterious effects of UV-B radiation on C. rosea colonization were overcome by higher conidial concentration. In addition, the tolerance of C. rosea conidia was higher when irradiated over leaf disks compared to agar media, and this is very important information to determine the dose and spray strategies for applying C. rosea in the field.  aBiological control  aBiological control agents  aClimate change  aFungal diseases of plants  aUltraviolet radiation  aClima  aControle biológico  aDoença de planta  aDoença fúngica  aRaio ultravioleta  aClonostachys rosea f. rosea  aConidial UV-B tolerance  aConidial viability1 aRANGEL, D. E. N.1 aMORANDI, M. A. B.1 aBETTIOL, W.  tWorld Journal of Microbiology and Biotechnology, Oxfordgv. 28, n. 7, p. 2497-2504, 2012.