scholarly journals Combining ability analysis in bitter gourd (Momordica charantia L.) for potential quality improvement

2024 ◽  
Vol 84 ◽  
Author(s):  
B. C. Kundu ◽  
G. M. Mohsin ◽  
M. S. Rahman ◽  
F. Ahamed ◽  
A. K. Mahato ◽  
...  
Keyword(s):  
Combining Ability ◽  
Diallel Analysis ◽  
Female Flower ◽  
Fruit Weight ◽  
Bitter Gourd ◽  
Reciprocal Effect ◽  
Gene Effects ◽  
Node Number ◽  
Combining Ability Analysis ◽  
Additive Gene

Abstract Combining ability analysis provides useful information for the selection of parents, also information regarding the nature and magnitude of involved gene actions. Crops improvement involves strategies for enhancing yield potentiality and quality components. Targeting the improvement of respective characters in bitter gourd, combining ability and genetic parameters for 19 characters were estimated from a 6×6 full diallel analysis technique. The results revealed that the variances due to general combining ability (GCA) and specific combining ability (SCA) were highly significant for most of the important characters. It indicated the importance of both additive and non-additive gene actions. GCA variances were higher in magnitude than SCA variances for all the characters studied indicating the predominance of the additive gene effects in their inheritance. The parent P2 (BG 009) appeared as the best general combiner for earliness; P1 (BG 006) for number of fruits, average single fruit weight and fruit yield; P4 (BG 027) for node number of first female flower and days to seed fruit maturity; P3 (BG 011) for fruit length and thickness of the fruit flesh; P5 (BG 033) for 100-seed weight; and P6 for number of nodes per main vine. The SCA effect as well as reciprocal effect was also significant for most of the important characters in different crosses.

scholarly journals Heterosis and Combining Ability of Pumpkin (Cucurbita moschata Duch. Ex Poir.)

2017 ◽  
Vol 5 (2) ◽  
pp. 132 ◽  
Author(s):  
B. Ahmed ◽  
M. A. T. Masud ◽  
M. Zakaria ◽  
M. M. Hossain ◽  
M. A. K. Mian
Keyword(s):  
Combining Ability ◽  
Female Flower ◽  
Fruit Weight ◽  
Cucurbita Moschata ◽  
Gene Effects ◽  
Plant Yield ◽  
Fruit Length ◽  
Additive Gene ◽  
Half Diallel ◽  
Fruit Diameter

Combining ability and heterosis studies carried out using half diallel method with six parents for nine characters. The analysis revealed that none of the parents was found good general combiner for all the characters consistently, however the parents P2, P3, P4 and P5 were best general combiner’s for yield and flowering traits. The gca variance for node order to first female flower open, fruit length, fruit diameter, flesh thickness, average fruit weight, fruits per plant, yield per plant and TSS was higher than the sca variance. While the days to first female flower open had lower gca value than the sca variance indicating the predominance of non-additive gene effects. Five crosses P1×P4, P3×P6, P4×P2, P5×P3 and P5×P6 found promising and should be maintained for development of future hybrid varieties for their sca effect and desirable level of heterosis.

Combining ability analysis for quantitative traits in red sweet pepper (Capsicum annuum L. var. grossum Sendt.) grown under protected condition

2021 ◽  
Vol 50 (1) ◽  
pp. 165-169
Author(s):  
Cherry Nalwa ◽  
Manish Kumar
Keyword(s):  
Combining Ability ◽  
Quantitative Traits ◽  
Fruit Set ◽  
Sweet Pepper ◽  
Fruit Weight ◽  
Fruit Yield ◽  
Gene Effects ◽  
Combining Ability Analysis ◽  
Additive Gene ◽  
Half Diallel

Six red sweet pepper genotypes viz., RSPUHF-1, RSPUHF-2, RSPUHF-3, RSPUHF-4, RSPUHF-5 and RSPUHF-7 and their crosses using half-diallel excluding reciprocals were evaluated for combining ability to obtain desired hybrids. Analysis of variance for combining ability revealed that variances due to general combining ability (GCA) and specific combining ability (SCA) were highly significant for all the characters indicating the importance of additive and non-additive gene effects. RSPUHF-3 (‒1.42* and ‒1.5*) and RSPUHF-7 (‒1.25* and ‒1.54*) were found as reliable combiners for earliness and maturity. Whereas, the parents RSPUHF-1 (0.53*, 0.78*, ‒0.5, 0.12*, 0.25*), RSPUHF-2 (1.49*, 2.19*, 6.41*, 0.63*, 2.21*) and RSPUHF-4 (0.69*, 0.9*, 9.92*, 0.47*, 1.28*) were good general combiners for fruit set per cent, number of fruits per plant, fruit weight, fruit yield per plant and fruit yield per m2. Amongst, the crosses, RSPUHF-3 x RSPUHF-2 (0.95*), RSPUHF-4 x RSPUHF-2 (0.77*) and RSPUHF-5 x RSPUHF-2 (0.86*) were found to be the best specific combinations for increased fruit yield and component characters. Further, on the basis of per se performance it may be identified for release after multi location testing the above hybrids have been found to be the most promising for exploitation of heterosis.

Combining Ability Estimates in Heat Tolerant Tomato (Solanum lycopersicum L.) Genotypes

2010 ◽  
pp. 113-120
Author(s):  
S Ahmad ◽  
AKM Quamruzzaman ◽  
M Nazim Uddin
Keyword(s):  
Combining Ability ◽  
Agricultural Research ◽  
Relative Magnitude ◽  
Fruit Weight ◽  
Research Centre ◽  
Gene Effects ◽  
Additive Gene Effects ◽  
Component Traits ◽  
Additive Gene ◽  
Tomato Genotype

The experiment was conducted at the experimental farm of Olericulture Division, Horticulture Research Centre, Bangladesh Agricultural Research Institute, Joydebpur, Gazipur from May to August 2003. Combining ability effects were estimated for yield and component traits in a 8 x 8 diallel design excluding reciprocals in tomato. The variances for general combining ability (GCA) and specific combining ability (SCA) were highly significant indicating the presence of additive as well as non-additive gene effects in the traits studied. The relative magnitude of these variances indicated that additive gene effects were more prominent for all the characters under study. The tomato genotype P1 (TM051) proved to be the best general combiner for yield followed by P2 (TM053) and the combinations P1xP3, P1xP5 and P5xP7 were identified as the best specific combiner for earliness, yield per plant, number of fruits per plant and individual fruit weight.

scholarly journals Diallel Analysis of Chilli Pepper (Capsicum annuum L.) Genotypes for Morphological and Fruit Biochemical Traits

Plants ◽  
2019 ◽  
Vol 9 (1) ◽  
pp. 1
Author(s):  
Aiswarya C. S. ◽  
Vijeth S ◽  
Sreelathakumary I ◽  
Prashant Kaushik
Keyword(s):  
Vitamin C ◽  
Combining Ability ◽  
Yield Components ◽  
Diallel Analysis ◽  
General Combining Ability ◽  
Biochemical Traits ◽  
Chilli Pepper ◽  
Gene Effects ◽  
Commercial Cultivation ◽  
Additive Gene

Chilli pepper is commercially cultivated as a spice and is also used for the extraction of a colouring agent. Here, we performed a diallel genetic study involving five chilli pepper varieties. Parents and their hybrid were evaluated for fifteen morphological and five biochemical traits over two crop seasons under open field conditions. Variation was recorded for all of the studied traits. Similarly, significant values for general combining ability (GCA) and specific combining ability (SCA) variance were obtained for all of the traits. The ratio of σ2 SCA/σ2 GCA indicates that non-additive gene effects were predominant for all the studied traits except for fruits plant−1. Based on SCA effects, cross combinations P2 × P5, and P4 × P5 were determined excellent for flesh thickness, yield components and vitamin C. These hybrids are recommended for multilocation testing to assess their suitability for commercial cultivation. Overall, this work presents useful information regarding the genetics of important morphological and biochemical traits in chilli pepper.

scholarly journals Combining ability analysis in near homozygous lines of okra [Abelmoschus esculentus (L.) Moench] for yield and yield attributing parameters

2017 ◽  
Vol 9 (1) ◽  
pp. 324-331
Author(s):  
Y. A. Lyngdoh ◽  
R. Mulge ◽  
A. Shadap ◽  
Jogendra Singh ◽  
Seema Sangwan
Keyword(s):  
Combining Ability ◽  
Genetic Variance ◽  
Gene Action ◽  
Additive Genetic Variance ◽  
Total Yield ◽  
Fruit Weight ◽  
Additive Gene Action ◽  
Combining Ability Analysis ◽  
Additive Gene ◽  
Number Of Branches

Line × tester analysis was carried out with the objective of identifying the good combiners and to decide the breeding strategies for developing potential and productive genotypes or cultivars. Parents and hybrids differed significantly for GCA and SCA effects for all the characters respectively. Specific combining ability (SCA) variance was higher than the general combining ability (GCA) variance which shows the predominance of non-additive gene action for the improvement of all the characters studied. The parents and crosses having highest and significant GCA and SCA effects viz., KO-18 (13.69), KO-6 (9.54) and KO-2 × Parbhani Kranti (19.28) for plant height; KO-12 (0.34), KO-14 (0.19) and KO-5 × V5 (0.60) for number of branches per plant; KO-14 (-0.66) and KO-15 × Arka Anamika(-1.66) for days to first flowering; KO-1(1.10), Arka Anamika (0.46) and KO-9 × VRO-5 (3.28) for fruit length; KO-7 (7.91), VRO-5(1.68) and KO-18 × VRO-6 (8.64) for average fruit weight; KO-2 (1.18) and KO-17 × Arka Anamika (2.80) for number of fruits per plant; KO-9(0.05), VRO-6 (0.01) and KO-11 × VRO-6 (0.10) for total yield per plant were identified as good general and specific combiners. The results establish the worth of heterosis breeding for effective usage of non-additive genetic variance in okra.

scholarly journals Combining Ability Analysis of Maize Inbred Lines in Ethiopia

2020 ◽  
Vol 7 (2) ◽  
pp. 113-124
Author(s):  
Abenezer Abebe Tefera ◽  
Legesse Wolde Beyene ◽  
Wosene Gebreselassie Abtew
Keyword(s):  
Analysis Of Variance ◽  
Combining Ability ◽  
Genetic Material ◽  
Inbred Lines ◽  
Gene Effects ◽  
Lattice Design ◽  
Maize Inbred Lines ◽  
Combining Ability Analysis ◽  
Additive Gene ◽  
Proportional Contribution

The study was initiated to estimate combining ability of maize inbred lines and crosses using line by tester analysis. Fifty entries consists 48 F1 single crosses developed from 24 inbred lines and 2 testers using line x tester design and two commercial check hybrids used in the study. The experiment was conducted using alpha lattice design with two replications. Analysis of variance revealed existence of significant genetic variation among genotypes for all studied traits except for plant aspect (PA). Location x entry interaction for most of the traits was not significant which suggests hybrid performance was consistent across tested locations. Line x tester analysis of variance showed that mean squares due to GCA of lines were significant (p< 0.01 or p< 0.05) for all studied traits. Mean squares of tester GCA and SCA were significant for most of studied traits. This indicates that both additive and non-additive gene effects had contributed for the variation of the crosses. However, higher proportional contribution of additive gene action for all studied traits was obtained. Several lines and crosses were identified as good general and specific combiners for yield and yield related traits. Lines L23, L11, L15 and crosses L2xT1, L3xT1, L8xT1, L11xT1, L23xT1 and L13xT2 were found to be good general and specific combiners, respectively. In conclusion, the stated inbred lines with desirable gca effects and cross combinations with desirable sca effects for grain yield and yield related traits could be used as useful genetic material.

scholarly journals Combining Ability And Heterosis In Snakegourd (Tricosanthes Cucurminata L)

1970 ◽  
Vol 23 (2) ◽  
pp. 1-6
Author(s):  
R Podder ◽  
MG Rasul ◽  
AKMA Islam ◽  
Mak Mian ◽  
JU Ahmed
Keyword(s):  
Combining Ability ◽  
Gene Action ◽  
Female Flower ◽  
Fruit Yield ◽  
High Yield ◽  
Additive Gene Action ◽  
Combining Ability Analysis ◽  
Additive Gene ◽  
Half Diallel ◽  
Fruit Diameter

A half diallel set of five parents and their 10 F1’s were studied to determine the combining ability and magnitude of heterosis for eight important characters in snakegourd at the experimental field of Bangabandhu Sheikh Mujibur Rahman Agricultural University during April to July, 2004. Combining ability analysis revealed that both general and specific combining ability variances were significant for all the characters except fruit diameter and fruit yield per plant. Predominance of additive gene action was noted for all the characters except days to first female flower where non-additive gene action was predominant. Parent P1 was the best general combiner for fruit yield and some yield contributing characters. Among the crosses P2  X P3, P1  X P2 and P1  X P4 were the best specific combiner for fruit yield and some of yield contributing characters. Both positive and negative heterosis was obtained of which few hybrids showed desirable and significant values. P2  X P5 showed the highest significant mid parental heterotic value for earliness and high yield whereas, P1  X P2, P2  X P3, P2  X P5 and P3  X P4 showed the highest significant better parent heterotic effect for earliness and high yield. Key words: Snakegourd (Trichosanthes cucurminata L.); combining ability; heterosis; fruit yieldDOI: http://dx.doi.org/10.3329/bjpbg.v23i2.9318 Bangladesh J. Pl. Breed. Genet., 23(2): 1-6, 2010

scholarly journals Combining Ability Analysis of Heat Tolerance in Gossypium hirsutum L.

2011 ◽  
Vol 41 (No. 1) ◽  
pp. 23-28 ◽  
Author(s):  
T. Azhar M ◽  
A. Khan A ◽  
A. Khan I
Keyword(s):  
Gossypium Hirsutum ◽  
Heat Tolerance ◽  
Combining Ability ◽  
Specific Combining Ability ◽  
Gossypium Hirsutum L ◽  
Gene Effects ◽  
Combining Ability Analysis ◽  
Additive Gene ◽  
Significant Comparison ◽  
Efficient Transfer

In order to study the genetic control of heat tolerance, four varieties/lines of Gossypium hirsutum L., namely MNH-554, Cocker-304, Delcerro and Albacala (71) 1190, were crossed in all possible combinations. Heat tolerance of 12 hybrids and their parents was measured at reproductive phase using an electrolyte leakage technique. The genetic analysis of the data showed significant effects of specific combining ability and reciprocals, but the effect of general combining ability appeared to be non-significant. Comparison of the parents for heat tolerance revealed that Delcerro and MNH-554 were the best general combiners for the character. The crosses Cocker-304 &times; Delcerro and Albacala (71) 1190 &times; MNH-554 were determined as the best combinations for heat tolerance and they involved one good general combiner as a parent. Significant effects due to specific combining ability indicated the importance of non-additive gene effects controlling heat tolerance. This information suggests that development of heat tolerance in the present plant material may be difficult; therefore it is necessary to design a specific breeding programme for efficient transfer of the trait. &nbsp;

scholarly journals Combining ability analysis for seed protein and methionine content in green gram [Vigna radiata (L.) wilczek]

2018 ◽  
Author(s):  
Anamika Nath ◽  
S. R. Maloo ◽  
Srikanta Nath ◽  
G. Y. Yadav
Keyword(s):  
Protein Content ◽  
Seed Yield ◽  
Combining Ability ◽  
Seed Protein ◽  
Green Gram ◽  
Seed Protein Content ◽  
Gene Effects ◽  
Combining Ability Analysis ◽  
Additive Gene ◽  
Methionine Content

For combining ability analysis, a diallel method was employed in which eight genotypically diverse lines of green gram were crossed among themselves in all possible combinations excluding reciprocals. The analysis for combining ability revealed significant mean sum of squares of both general combining ability (GCA) and specific combining ability (SCA) for most of the characters which indicated the presence of both additive and non-additive gene actions. Higher magnitude of GCA effects than SCA effects were observed for days to secondary branches per plant, 100 seeds weight and seed yield per plant indicating predominance of these traits by additive gene effects. Higher magnitude of SCA effects than GCA effects were observed for characters pod length, seed protein content and seed methionine content pointed out to be the preponderance of non-additive gene effects in the expression of these characters. The good general combiner for seed yield was BM-4, whereas, IPM 99-125 was most promising for seed protein content and RMG-1045 for seed methionine content. The best specific cross combinations for seed yield and seed methionine content was BM-4 x PDM-139 and for seed protein content cross RMG-1035 x RMG-1045. These parents and cross combinations could be utilized for further breeding programme for improvement in yield and quality of mungbean.

scholarly journals Study on combining ability and heterosis for earliness and short statured plant in maize

2016 ◽  
Vol 41 (2) ◽  
pp. 365-376 ◽  
Author(s):  
M Hoque ◽  
F Akhter ◽  
M Kadir ◽  
HA Begum ◽  
S Ahmed
Keyword(s):  
Combining Ability ◽  
Gene Action ◽  
Growth Parameters ◽  
Thousand Grain Weight ◽  
Gene Effects ◽  
Combining Ability Analysis ◽  
Additive Gene ◽  
Ear Height ◽  
Low X ◽  
Average Average

An experiment was carried out in 6x6 diallel crosses for combining ability analysis for grain yield, maturity and growth parameters in maize. Analysis of variance for combining ability showed that mean square value due to GCA & SCA were highly significant for all characters except SCA in days to tasseling and days to maturity indicated that all but two traits were governed by both additive and non-additive gene action. Variances due to GCA were much higher in magnitude than SCA indicated additive gene effects were much more important for all characters except cob length, thousand grain weight and ear height. The Parent P5 was the best general combiner for yield and most of the yield contributing characters. The Parent P1 & P2 were best general combiner for both dwarf and earliness. The crosses showing significant SCA effects for yield involving average x average, average x low and low x low general combining parents. The crosses P3xP6 & P4xP5 showed either significantly or numerically higher heterosis than checks BHM-5, BHM- 7 & BHM-9 for yield.Bangladesh J. Agril. Res. 41(2): 365-376, June 2016

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