scholarly journals Heterosis in relation to genetic divergence and specific combining ability in groundnut (Arachis hypogaea L.)

Euphytica ◽  
1984 ◽  
Vol 33 (1) ◽  
pp. 33-39 ◽  
Author(s):  
V. Arunachalam ◽  
A. Bandyopadhyay ◽  
S. N. Nigam ◽  
R. W. Gibbons
Keyword(s):  
Arachis Hypogaea ◽  
Genetic Divergence ◽  
Combining Ability ◽  
Specific Combining Ability ◽  
Arachis Hypogaea L

scholarly journals Combining ability for main quality traits in peanut (Arachis hypogaea L.)

2021 ◽  
Author(s):  
Chuantang Wang ◽  
Zhiwei Wang ◽  
Hongwei Han ◽  
Jiakai Li ◽  
Hongjv Li ◽  
...  
Keyword(s):  
Arachis Hypogaea ◽  
Combining Ability ◽  
Quality Traits ◽  
Arachis Hypogaea L

scholarly journals Genetic Divergence in Groundnut (Arachis hypogaea L.) using RAPD

2019 ◽  
Vol 8 (09) ◽  
pp. 1535-1549
Author(s):  
Yaikhom Vivekananda ◽  
Pramesh Khoyumthem ◽  
Mutum Suraj Singh ◽  
Konsam Cha Shyamananda ◽  
N. Brajendra Singh
Keyword(s):  
Arachis Hypogaea ◽  
Genetic Divergence ◽  
Arachis Hypogaea L

Combining ability analysis of groundnut (Arachis hypogaea L.) genotypes for yield and related traits under drought-stressed and non-stressed conditions

Euphytica ◽  
2021 ◽  
Vol 217 (11) ◽  
Author(s):  
Seltene Abady ◽  
Hussein Shimelis ◽  
Pasupuleti Janila ◽  
Dnyaneshwar Deshmukh ◽  
Ankush Wankhade ◽  
...  
Keyword(s):  
Arachis Hypogaea ◽  
Combining Ability ◽  
Arachis Hypogaea L ◽  
Combining Ability Analysis

Combining Ability of Ontario-Grown Peanuts (Arachis hypogaea L.) for Oil, Fatty Acids, and Taxonomic Characters1,2

1986 ◽  
Vol 13 (2) ◽  
pp. 93-97 ◽  
Author(s):  
E. E. Sykes ◽  
T. E. Michaels
Keyword(s):  
Fatty Acids ◽  
Linoleic Acid ◽  
Arachis Hypogaea ◽  
Combining Ability ◽  
Arachidic Acid ◽  
Oil Quality ◽  
High Linoleic Acid ◽  
Arachis Hypogaea L ◽  
Full Flowering ◽  
Oil Concentration

Abstract Undesirably low oleic acid and high linoleic acid concentrations in seed oil are typical of Valencia peanuts (Arachis hypogaea L.) produced in a cool, short-season climate. Improved oil quality may be achieved by incorporating Virginia type germplasm into adapted Valencia peanuts. The objectives of this study were to determine the oil quality of nine Valencia and four Virginia peanut lines, evaluate their combining ability for oil concentration, fatty acid composition of the oil, and several taxonomic characters, and assess the potential for developing cultivars adapted to Ontario with improved oil quality. General combining ability (GCA) of the Virginia parents significantly exceeded specific combining ability (SCA) for all fatty acids except arachidic, and also for oleic/linoleic (O/L) ratio, days to first flowering, days to full flowering, and branching pattern (R/R + V ratio). GCA of the Valencia parents significantly exceeded SCA only for oil concentration. Significant SCA estimates were found for oil concentration, palmitic and oleic acids, O/L ratio, and height of the main axis (first date). Significant heterosis was detected for all taxonomic characters except days to first flowering. Genetic variability for all characters except arachidic acid indicates that the development of Ontario cultivars with improved oil quality, in terms of higher oil content and reduced linoleic acid levels, appears feasible through breeding efforts.

scholarly journals Combining Ability and Heterosis Studies for Yield and Yield Contributing Characters in Groundnut (Arachis hypogaea L.)

2020 ◽  
pp. 566-573
Author(s):  
P. Gonya Nayak ◽  
M. Venkataiah ◽  
P. Revathi
Keyword(s):  
Arachis Hypogaea ◽  
Combining Ability ◽  
Kernel Weight ◽  
Basic Material ◽  
Yield Traits ◽  
Pod Yield ◽  
Arachis Hypogaea L ◽  
Days To Maturity ◽  
Per Se

In groundnut during Rabi 2015-16 Combining ability and heterosis was studied among 9 crosses involving three diverse lines viz., IVK 2015-21, IVK 2014-21and ICGV 00348 and 3 testers viz., Kadiri 7, Kadiri 6 and JCG 2141.On the basis of per se performance and General Combing Ability (GCA) effects together, the parents IVK-2014-21 and Kadiri-7 were identified as better combiners for various yield and its attributing characters. These parental materials could be better utilized as valuable basic material in developing high yielding groundnut varieties. Among those, based on per se performance, the corresponding GCA status of parents and SCA effects for most of the yield traits viz., days to 50% flowering, days to maturity, 100 kernel weight and pod yield per plant only one cross viz.,IVK14-21 x K7 was considered as better one.

scholarly journals Genetic Divergence in Groundnut (Arachis hypogaea L)

1970 ◽  
Vol 23 (1) ◽  
pp. 45-49
Author(s):  
MA Zaman ◽  
M Tuhina-Khatun ◽  
M Moniruzzaman ◽  
MN Yousuf
Keyword(s):  
Arachis Hypogaea ◽  
Genetic Divergence ◽  
Agricultural Research ◽  
Block Design ◽  
Research Station ◽  
Early Maturity ◽  
Randomized Block Design ◽  
Arachis Hypogaea L ◽  
Cluster Distance ◽  
Moderate Yield

Comprising 34 groundnut genotypes an experiment was conducted in a randomized block design with three replication at the Research farm of Regional Agricultural Research Station, BARI, Hathazari, Chittagong during Rabi season (December 2009 to April 2010) for estimation of the multivariate analysis of divergence. The genotypes were grouped into five clusters. Cluster III contained the highest number of genotypes (12) and the cluster II contained the lowest (2). The inter-cluster distances in all cases were larger than the intra-cluster distance which indicated that wider diversity is present among the genotypes of distant grouped. The highest intra cluster distance was observed in cluster V and the lowest in II. The highest inter cluster distance was observed between the cluster IV and III followed by V and III and the lowest between cluster V and I. Days to 50% flowering, days to maturity, number of branches per plant, number of matured nuts per plant and karnel size were the most important contributors based on the latent vector. But the highest cluster means for matured nuts per plant, 100 karnel weight, 100 nuts weight and yield per plant were obtained from the cluster II. With moderate yield but early maturity varieties were found in cluster IV. Therefore, more emphasis should be given on cluster VI for selecting genotypes as parents for crossing with the genotypes of cluster II and III for getting new recombinants with early maturity and higher yield.   Key Words: Genetic divergence; cluster analysis; D2 analysis; groundnut (Arachis hypogaea L) DOI: http://dx.doi.org/10.3329/bjpbg.v23i1.9317 BJPBG 2010; 23(1): 45-49

Combining Ability Estimates in Arachis Hypogaea L. III. F2 Generation of Intra- and Intersubspecific Crosses1

1975 ◽  
Vol 2 (2) ◽  
pp. 50-54 ◽  
Author(s):  
J. C. Wynne ◽  
J. O. Rawlings ◽  
D. A. Emery
Keyword(s):  
Arachis Hypogaea ◽  
Combining Ability ◽  
Early Generation ◽  
Ability Estimates ◽  
Arachis Hypogaea L ◽  
Transgressive Segregants ◽  
Parental Lines ◽  
F2 Generation ◽  
Pod Length ◽  
Botanical Varieties

Abstract A hybridization program was initiated to investigate the breeding potential of crosses among diverse peanut (Arachis hypogaea L.) lines. Fifteen crosses in F2 generation generated by crossing six peanut lines representing Valencia, Virginia, and Spanish botanical varieties in diallel without reciprocals were used to estimate combining ability in drilled and space-planted tests. Estimates of both general (GCA) and specific (SCA) combining ability were significant for percent extra large kernels, percent sound mature kernels, kernels/kg, pod length, and yield measured in the drilled test. The GCA estimates were also significant for all characters measured in the space-planted test, while estimates of SCA were significant for five of the six characters. Estimates of GCA were of greater magnitude than SCA estimates for all characters except one. A Spanish line, C2, had the highest GCA effects for yield and sound mature kernels in both drilled and space-planted tests. Although most F2 cross means, especially for the intersubspecific crosses, were less than the midparent value, the presence of transgressive segregants indicated an opportunity for breeding improvement. The depression of F2 means probably resulted from recombination of genes responsible for adaptation of the parental lines. Comparison of results from the space-planted and drilled tests indicates that data from space-planted tests can provide useful information on the performance of crosses in early generation.

Sign in / Sign up

Export Citation Format

Share Document