DEVELOPMENT AND EVALUATION OF CMS BASED HYBRIDS IN CABBAGE (Brassica oleracea L. var. capitata L.)
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Date
2020-08
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NAUNI,UHF
Abstract
ABSTRACT
The present investigation entitled “Development and evaluation of CMS based hybrids in cabbage
(Brassica oleracea L. var. capitata L.)” was carried out at the Experimental Research Farm of Department of
Vegetable Science, Dr YS Parmar University of Horticulture and Forestry, Nauni, Solan, Himachal Pradesh
during 2018-20. The experimental material was comprised of F1 population of 18 crosses, developed by crossing
three lines and six testers according to Line × Tester design (Kempthorne, 1957). All the parents (three lines and
six testers) and their hybrids (18) along with the standard check (Pusa Cabbage Hybrid-1) were planted in a
Randomized Complete Block Design for their comparative evaluation. The observations were recorded on days
to fifty per cent marketable maturity, number of non-wrapper leaves, plant spread, head compactness (g/cm3),
head shape index, gross head weight (g), net head weight (g), stalk length (cm), harvest index (%), equatorial
and polar diameter of head (cm), core size (cm), total soluble solids (˚B), ascorbic acid (mg) and yield per plot
(kg) and per hectare (q). The analysis of variance indicated highly significant differences among the genotypes
for all the traits studied. Experimental results revealed that two lines viz., UHF-CAB-CMS-22 and UHF-CABCMS-21
and three testers viz., UHF-CAB-11, UHF-CAB-15 and UHF-CAB-14 were found superior on the
basis of their mean performance and general combining ability studies. Five cross combinations viz., UHFCAB-CMS-21
× UHF-CAB-14, UHF-CAB-CMS-20 × UHF-CAB-11, UHF-CAB-CMS-22 × UHF-CAB-14,
UHF-CAB-CMS-22 × UHF-CAB-11 and UHF-CAB-CMS-21 × UHF-CAB-11 were found best on the basis of
mean performance, specific combining ability and heterosis studies. The components due to dominance (2 s)
were higher in magnitude than additive (2g) for all the traits under study indicated that the role of non-additive
gene action was predominant. Hence, these parents and cross combinations can be released as a substitute of
existing varieties/hybrids of cabbage after testing at multilocations.