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Effect of gibberellic acid on the extraction of protein from the leaves of spring vetches ( vicia sativa L.)
Author(s) -
Byers M.,
Jenkins G.
Publication year - 1961
Publication title -
journal of the science of food and agriculture
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.782
H-Index - 142
eISSN - 1097-0010
pISSN - 0022-5142
DOI - 10.1002/jsfa.2740121002
Subject(s) - gibberellic acid , dry matter , vicia sativa , botany , vicia faba , extraction (chemistry) , chemistry , horticulture , yield (engineering) , biology , germination , chromatography , physics , thermodynamics
Abstract In connexion with the production of leaf‐protein in quantity, the effect of gibberellic acid on the yield of dry matter and crude protein, and on the extractability of the protein, was studied with spring vetches ( Vicia sativa L.). A single spraying with gibberellic acid did not significantly affect the dry matter or crude protein in the foliage at the first cut, nor did it affect the extraction. The yields of dry matter and crude protein at the second cut were significantly lowered when the crop had been sprayed before the first cut. Two additional sprayings of gibberellic acid after the first cut further decreased these yields at the second cut. in both these cases the yields of extracted protein at the second cut and the combined yields from the first and second cuts were significantly lower than the corresponding yields from the unsprayed plants. Spraying with gibberellic acid before the second cut only, did not affect the dry matter but lowered both the yields of crude and extracted protein, although the combined yields from the two cuts were not significantly lowered. Hence, gibberellic acid not only fails to increase the leaf‐protein extractable from spring vetches, but under certain conditions decreases it.