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Physiological and Chemical Differences in Aged Seeds 1
Author(s) -
Ching T. M.,
Schoolcraft Isabelle
Publication year - 1968
Publication title -
crop science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.76
H-Index - 147
eISSN - 1435-0653
pISSN - 0011-183X
DOI - 10.2135/cropsci1968.0011183x000800040003x
Subject(s) - biology , seedling , phytase , germination , phosphate , starch , moisture , botany , phytic acid , amino acid , perennial plant , food science , horticulture , agronomy , biochemistry , chemistry , enzyme , organic chemistry
Moisture content, germination percentage, seedling length and contents of sugars, amino acids, inorganic. phosphate, starch, and insoluble protein were determined in new and 10‐year‐old canned crimson clover and perennial ryegrass seeds. Conductances,u gars, aminoa cids, and phosphatew ere measuredi n the leachate of these seeds. Loss of viability and vigor was not due to depletion of food but appeared to be related to the activity of proteases, phytase, and phosphatases since an increase of permeability, amino acids, and inorganic phosphate was observed in the aged material. The magnitude of these increases was related to species, seed moisture and to a lesser degree storage temperature.