Combining Ability Estimates in Arachis hypogaea L. I. F 1 Seedling Responses in a Controlled Environment 1

Crop Science ◽  
1970 ◽  
Vol 10 (4) ◽  
pp. 429-432 ◽  
Author(s):  
R. C. Parker ◽  
J. C. Wynne ◽  
D. A. Emery
Keyword(s):  
Arachis Hypogaea ◽  
Combining Ability ◽  
Controlled Environment ◽  
Ability Estimates ◽  
Arachis Hypogaea L

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.

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

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 Observations on the opening of flowers, dehiscence of anthers and growth of pollen tubes in Arachis hypogaea L.

1965 ◽  
Vol 13 (4) ◽  
pp. 361-365
Author(s):  
G.G. Bolhuis ◽  
H.D. Frinking ◽  
J. Leeu-Wangh ◽  
R.G. Rens ◽  
G. Staritsky
Keyword(s):  
Arachis Hypogaea ◽  
Pollen Tubes ◽  
Light Period ◽  
Controlled Environment ◽  
Flower Buds ◽  
Arachis Hypogaea L

Examination of flower buds and flowers of 3 different groundnut cultivars in controlled environment disclosed that flower expansion occurs at the onset of the light period. Pollen liberation may already occur 7-8 h before flower expansion, but even then the anthers may not have dehisced in some flowers. It was calculated that pollen tubes grow at a rate of about 4 mm/h.-R.B. (Abstract retrieved from CAB Abstracts by CABI’s permission)

scholarly journals Combining ability and heterosis analyses for oil and healthy fatty acid composition in groundnut (Arachis hypogaea L.)

2021 ◽  
Vol 8 (3) ◽  
Author(s):  
Md. Rayhan Sikder ◽  
Md. Abul Kalam Azad ◽  
Sariful Haque Bhuiya ◽  
Khondakar Sumsul Arefin ◽  
Md. Mahbubul Hassan Sohag ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Fatty Acid ◽  
Arachis Hypogaea ◽  
Combining Ability ◽  
Oil Content ◽  
F1 Hybrids ◽  
Arachis Hypogaea L ◽  
Breeding Programmes ◽  
The Cross ◽  
Fatty Acid Compositions

Development of a variety having high oil content and desirable fatty acid compositions is a major objective of groundnut (Arachis hypogaea L.) breeding programmes. To study the gene action (through combining ability) and heterosis for oil and fatty acids, an experiment was conducted using a 4 × 4 full diallel method. Four parents and their 12 F1 hybrids were evaluated following a randomized complete block design. Data were recorded for oil, fatty acids and oleic-linolenic (O/L) acid ratio. Highly significant genotypic variation was found among the parents and their F1 hybrids for the studied traits. The combining ability studies (general, specific and reciprocal) reflected that the oil and fatty acid traits were controlled by both non-additive and additive genes having significant maternal effects. Results also revealed that the parent China Badam was the best general combiner for oil, linolenic acid and O/L ratio whereas the parent Binachinabadam-4 for oleic and linoleic acids. Best SCA performance was found from the cross Dacca-1 × China Badam and Binachinabadam-4 × China Badam for oil, oleic- and linolenic-acid contents. Significant heterosis for oil content was observed in F1 hybrids obtained from the cross Binachinabadam-4 × China Badam and its reciprocal cross. The cross China Badam × GC (24)-1-1-1 showed a higher O/L ratio (>4) along with lower level of saturated fatty acids. Therefore, these crosses could be exploited in future breeding programmes to develop new lines for higher oil and healthy fatty acid compositions.

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