Leaf yield component combining abilities in mulberry (Morus spp.)

A line × tester analysis was carried out in mulberry (Morus spp.) to determine the genetic interaction in the expression of various quantitative characters including leaf yield. Eight clonal varieties were selected, 3 of them were designated as lines (♀) viz. Berhampore-1, China white and MS-5 and 5...

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Bibliographic Details
Published in:Euphytica 1997-01, Vol.98 (1-2), p.47-52
Main Authors: Vijayan, K. (Central Sericultural Research and Training Inst., Berhampore, West Bengal (India)), Chauhan, S, Das, N.K, Chakraborti, S.P, Roy, B.N
Format: Article
Language:English
Subjects:
Agronomy. Soil science and plant productions
APTITUD COMBINATORIA
APTITUDE A LA COMBINAISON
Biological and medical sciences
COMBINING ABILITY
FEUILLE
Fundamental and applied biological sciences. Psychology
Genetic variability
GENETICA CUANTITATIVA
Genetics and breeding of economic plants
GENETIQUE QUANTITATIVE
Genotypes
Growth rate
Heterosis. Floral biology applications: apomixy, male sterility, incompatibility, varia
HOJAS
Hybrids
LEAVES
Moisture content
Moisture effects
MORUS
Plant breeding: fundamental aspects and methodology
Plants
QUANTITATIVE GENETICS
RENDEMENT
RENDIMIENTO
Retention capacity
Water content
YIELDS
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Summary:A line × tester analysis was carried out in mulberry (Morus spp.) to determine the genetic interaction in the expression of various quantitative characters including leaf yield. Eight clonal varieties were selected, 3 of them were designated as lines (♀) viz. Berhampore-1, China white and MS-5 and 5 of them were called as testers (♂) viz. Mandalaya, Kosen, Assamjati, MS-1 and Kajli. Combining ability studies were conducted on these parents along with their F1 hybrids for the variables laminar index, growth rate, weight of 100 dry leaves, number of primary branches per plant, plant height, nodal distance, leaf-twig ratio, aerial biomass, moisture content, moisture retention capacity and leaf yield. Broad genetic variability was observed among the genotypes. The ratio of General Combining Ability (GCA) and Specific Combining Ability (SCA) indicated the predominance of non-additive genes in mulberry. While China white (female) and MS-1 (male) were the best general combiners among the parents, Berhampore-1 × Kajli was the best cross for leaf yield. Results suggest that selective crossing followed by proper screening may be the best approach for breeding of high yielding varieties in mulberry.
ISSN:0014-2336
1573-5060
DOI:10.1023/A:1003066613099