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EFFECT OF DIFFERENT PRIMING METHODS ON SEED QUALITY, BIOCHEMICAL CHANGES AND STORABILITY OF CHINA ASTER (Callistephus chinensis L. Nees).

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Title EFFECT OF DIFFERENT PRIMING METHODS ON SEED QUALITY, BIOCHEMICAL CHANGES AND STORABILITY OF CHINA ASTER (Callistephus chinensis L. Nees).
 
Creator B.VIMALA
 
Contributor Dr. M. PRATAP
 
Subject priming methods ,seed quality,biochemical changes ,germination percentage
 
Description A laboratory experiment, “Effect of different priming methods on seed quality,biochemical changes on seed storability of china aster (Callistephus chinensis L. Nees)” on ‘kamini’ variety was conducted at College of Horticulture, Dr.Y.S.R. Horticulture University, Rajendranagar, Hyderabad during the year 2011-12. The experiment was laid in factorial completely randomised block design comprising two factors viz., age of the seed and then other as priming method. Entire treatments were replicated four times.
The experiment consisted of four treatments viz., Hydro priming (T1), Osmo priming(T2), Halo priming(T3), Unprimed as control (T4), as one factor and two different ages of the seed viz., one year old seed (S1) and Half year old seed (S2) as another factor, which was replicated four times in completely randomized design with factorial concept. Seed samples were primed and kept in polyethythelene bag and stored for six months at ambient condition.
The treated seeds were used to observe different physiological and biochemical changes in each month upto a period of six months.The samples were drawn at monthly intervals for assessing the seed quality parameters viz., germination percentage, speed of germination, root length, shoot length, seedling vigour index, seedling dry weight, field emergence and electrical conductivity, lipid peroxidase activity and dehydrogenase activity.
The results emanated from the experiment revealed that, amongest the two different ages of the seed, six months old seed recorded maximum germination percentage, field emergence, speed of germination, seedling length, seedling dry weight and seedling vigor index and least was observed in one year old seed. Amongest the priming treatments, priming of seed with KNO3 @ 0.5% resulted in best performance of the seed regarding all the physiological and biochemical parameters followed by hydro priming. Unprimed seed (control) failed to exert any significant influence on the quality parameters. Storage of the treated seeds up to six months resulted in a gradual decrease in performance of the seed. However, storage of the six months old KNO3 treated seed up to six months was found to be good compared to one year old seed regarding all the quality parametes.
As a whole, treating of the six months old seed with KNO3 @ 0.5% gave good results compared to all other priming treatments as well as control in all respects.
 
Date 2016-07-23T10:00:50Z
2016-07-23T10:00:50Z
2012-05
 
Type Thesis
 
Identifier http://krishikosh.egranth.ac.in/handle/1/69470
 
Language en
 
Format application/pdf
 
Publisher Dr. Y.S.R. HORTICULTURAL UNIVERSITY