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Maturation Temperature Influences on Seed Quality and Resistance to Mechanical Injury of Some Snap Bean Genotypes1


Of 10 genotypes of bean (Phaseolus vulgaris L.) studied, all produced better quality seeds at low maturation temperatures. Resistance to mechanical injury was also maximal in low temperature matured seeds. In general, the colored seeded genotypes unlike the white seeded genotypes, tolerated a wide range of maturation temperatures. However, ‘Spartan Arrow’, which has colored and large seeds was susceptible to mechanical injury at all maturation temperatures, and the white seeded line 26W showed good tolerance at all temperatures. It appears that it will be possible to breed white-seeded lines showing improved tolerance of high seed maturation temperatures.