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Tayyab Husnain Jan Asad Shahina B. Maqbool Swapan K. Datta S. Riazuddin 《Euphytica》2002,124(1):121-128
Attempts at breeding squash (Cucurbita pepo) resistant to powdery mildew (Sphaerotheca fuliginea and Erysiphe cichoracearum) have heretofore been unsuccessful due mainly to association of the resistance trait with reduction in yield. The goal of
the present work was to determine if heterozygous hybrids expressing partial resistance could be potentially valuable for
squash growers. One heterozygous hybrid each of zucchini, cocozelle, and vegetable-marrow squash was grown alongside a leading
susceptible commercial hybrid cultivar of the same type, under standard field conditions. Although fungicides were applied
at recommended rates every 6 to 13 days to suppress powdery mildew, the susceptible hybrids became heavily infested later
in the season. The resistant hybrids were similar to their respective commercially available susceptible hybrids in fruit
appearance and other horticulturally important traits. The resistant hybrids yielded at least as well as the commercial hybrids
early in the season and outyielded them later in the season.
This revised version was published online in August 2006 with corrections to the Cover Date. 相似文献