STUDIES ON GENOTYPIC EVALUATION AND SEED STORAGE IN CHINA ASTER [Callistephus chinensis (L.) Nees.]
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Date
2012-12
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University of Horticultural Sciences, Bagalkot. (KRC College of Horticulture, Arabhavi).
Abstract
The study on genetic variability and correlation among the different characters
influencing the flower yield, seed yield and seed quality of different genotypes of china
aster was carried out during kharif season of 2011-12 and seed storage studies in
cv. Kamini at the Kittur Rani Channamma College of Horticulture, Arabhavi. The first
experiment comprised of ten china aster genotypes. Among the ten genotypes,
Phule Ganesh White and Phule Ganesh Purple recorded maximum flower and seed
yield per plant. Phule Ganesh Purple recorded higher germination percentage whereas
Phule Ganesh Pink recorded maximum root and shoot length and seedling vigour index.
Flower yield per hectare was positively and significantly correlated with plant height,
plant spread, number of secondary branches and leaf area at genotypic level.
Germination and seedling vigour index (SVI) studies showed positive significant
correlation with plant height, plant spread, leaf area, 50 per cent flowering, number of
flower per plant, flower yield per plant, dry matter production and seed yield.
The second experiment was carried out with an objective of studying the
influence of seed treatment with fungicides (Captan and Bavistin), packing materials
(polythene bag and paper bag) and storage conditions (refrigerated and ambient) on
quality of china aster seeds. The seeds treated with Bavistin were resulted significantly
higher germination percentage, root length, shoot length, seedling length, seedling dry
weight and seedling vigour index. With respect to packing materials, the seeds packed
in polythene bag (700 gauge) resulted significantly higher germination percentage, root
length, shoot length, seedling length, seedling dry weight and seedling vigour index.
Similarly the seeds stored in refrigerated condition recorded significantly higher
germination percentage, root length, shoot length, seedling length, seedling dry weight
and seedling vigour index.