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Abstract
Persistent-green color has been incorporated into curly top and common beanmosaic virus resistant snap beans. Cooperative observation and processing trials throughout the United States indicate wide adaptability and good commercial potential for several lines. Release, during 1968, of one or more of these snap beans, to commercial seedsmen for seed increase is anticipated.
Abstract
Chlorophyll concns decreased rapidly as pods matured from the 1-day-old fruit stage. Total chlorophyll a + b per pod was influenced by pod length as well as pigment concn. Apparent chlorophyll synthesis occurred in field-grown green snap bean fruits up to 11-mm diam pods (sieve size 5 or 6), but a net decrease occurred with further maturation. Dry-mature persistent-green pods contained 300 ppm chlorophyll on a dry matter basis, whereas normal-green pods had none. Lack of consistent agreement between visual and chemical methods to rank cultivars for pod color suggested differences in chlorophyll distribution in external versus internal tissue.