Viability loss of Dendrocalamus hamiltonii seeds with storage associated with membrane phase behaviour and hormonal analysis
Keywords:
Deterioration, physiology, membrane integrity, seed viability, storageAbstract
Bamboo seeds are scarcely available and also they have a very short viability of 2-3 months as they flower after a long interval and generally flowering is infrequent. Generally they are stored under controlled condition of 4 degree Celsius in desiccators under anhydrous calcium chloride to maintain viability for longer period of time. During storage upto 18 months, deterioration, increases with ageing. Biological membranes with a normal composition and organisation regulate the transport of material into and out of the cell. Damage to the organisation of cell membrane during seed ageing may constitute an important factor in explaining seed deterioration. The damage caused to membrane through deterioration that provides lower selectivity and hence increase in the leakage of solutes to the environment is one of the main cause of the decline in the physiological quality of seeds i.e germination studies and hormonal studies. Effect of hormone were studied i.e IAA, Gibberellins and Abscissic Acid after every 6 months upto 18 months period. One of the major changes during seed storage is membrane deterioration, which leads to the loss of seed viability. The aim of the study is to correlate membrane integrity deterioration with seed viability or physiology during storage upto 18 months in species of seeds of Dendrocalamus hamiltonii.
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