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Starch and amylose content in conventional and semi leafless cultivars of garden and field peas



Starch and amylose content in conventional and semi leafless cultivars of garden and field peas



Journal of Agronomy & Crop Science 163(5): 289-296



Small-plot experiments were carried out with conventional and semi-foliated cultivars of garden and field peas (Pisum sativum, ssp. medullare and ssp. sativum) to investigate the effect of increasing potassium dressings on starch, amylose and sugars in mature seeds during two years. Field peas compared with garden peas produced: (1) 2 times higher seed yields, (2) 1.6 times higher starch contents (41-44% DM), (3) nearly comparable amylose contents (17 % DM), (4) 3 times higher amylopectin contents (26% DM), (5) 4 times lower sugar contents (1.6% DM). In the presently existing cultivars field peas are by far superior to garden peas with regard to amylose production per area. Compared with conventional cultivars the semi-leafless types of both subspecies yielded the same seed weights, and they differed in no respect in the seed components analysed. Improved potassium nutrition increased yields of seeds and straw, but had no significant effect on the seed components analysed.

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Accession: 007816954

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