Generation mean analysis for seed yield and its contributing traits in chickpea (<i>Cicer arietinum</i> L.)

Deshmukh, Ram A; Gawande, V. L.

doi:10.5958/0975-928x.2016.00012.0

Cited by 3 publications

(3 citation statements)

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“…The dominance gene effect (d) was significant and greater in magnitude than the additive effect in most of the cases demonstrating a predominant role of dominance gene action in controlling these traits in sesame. Deshmukh and Gawande [14] also reported similar finding in different crosses. Positive dominance gene effects suggest its enhancing effects on the performance of different traits.…”

Section: Scaling Tests and Gene Effectssupporting

confidence: 63%

“…On the other hand, highly significant negative dominance x dominance observed for days to 50 % flowering (cross 1 under E 2 and cross 3 under E 2 ) and days to maturity (cross 1 under E 2 , cross 2 under E 2 and cross 3 under E 2 ). Deshmukh and Gawande [14] also observed all three types of gene interactions ('i', 'j' and 'l') in different crosses in chickpea.…”

Section: Scaling Tests and Gene Effectsmentioning

confidence: 88%

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Genetic Analysis for Phenological Characters in Desi x Desi Crosses of Chickpea (Cicer arietinum L.) under Timely and Late Sown Conditions

Ola

Jain

Nehra³

et al. 2022

IJECC

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Aims: To study of gene effects for phenological characters in chickpea crosses under different environmental conditions. Study Design: Compact family block design (CFBD was followed. Place and Duration of Study: The experiment was conducted at research farm, Rajasthan Agricultural Research Institute, Durgapura (SKNAU, Jobner, Jaipur, Rajasathan) during rabi 2020-2022. Methodology: The experimental material consisted of parents (P1, P2), F1’s, F2’s, and back crosses with both the parents (B1 and B2) of three chickpea crosses. The six basic generations viz., P1, P2, F1, F2, B1 and B2 of the three crosses viz., RSG-807 × RSG-895, RSG-895 × HC-5 and RSG-974 × Avrodhi were raised in compact family block design (CFBD) with three replications with two environments viz., timely sown (E1) condition and late sown (E2) conditions which were created by different date of sowing, first- November and first-December, 2021, respectively. Results: Pooled analysis of variance (ANOVA) over environments and simple ANOVA for difference among generations within cross in each environment were observed significant in all three crosses for both the characters. Means values of all six generations were lower in late sown condition as compare to timely sown condition in all cases. Simple additive-dominance model was found inadequate for both of the characters studied in all the crosses under both the conditions. The result of the generation mean analysis showed that non-additive gene effects were more contributed for the inheritance of traits in most of the cases, then additive gene effects. Conclusion: Among the all crosses, the mean performance of f1 generation of cross RSG-807 × RSG-895 was found low for days to 50 % flowering as well as maturity under both the conditions and durations of flowering and maturity were hastened under late sown conditions; therefore, early maturity varieties may be developed. However, due to presence of non-fixable gene effects selection for short durations for flowering and maturity will not effective in early segregating generations. In such situations, simple pedigree method of selection alone is ineffective. Instead, biparental mating followed by selection of desired recombinants from the segregating population is desirable. Since considerable amount of dominance effect was also present for most of the traits, selection of superior segregants has to be delayed to later generations until homozygosity is achieved.

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Section: Scaling Tests and Gene Effectssupporting

confidence: 63%

Section: Scaling Tests and Gene Effectsmentioning

confidence: 88%

Genetic Analysis for Phenological Characters in Desi x Desi Crosses of Chickpea (Cicer arietinum L.) under Timely and Late Sown Conditions

Ola

Jain

Nehra³

et al. 2022

IJECC

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show abstract

“…Therefore, few cycles of recurrent selection followed by pedigree breeding will be effective in the improvement of seed yield per plant in chickpea. Similar breeding strategy has been suggested for the improvement of seed yield per plant in chickpea by the earlier scientists also (Girase and Deshmukh, 2000;Kumhar et al, 2013 andGawande, 2016).…”

Section: Discussionmentioning

confidence: 69%

Estimation of gene effects using generation mean analysis in chickpea for yield and quantitative traits under timely and late sown conditions

mvr,

Shailesh,

Rekha

et al. 2023

Preprint

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The chickpea (Cicer arietinum L.), which is known to be high-temperature sensitive, has its yields affected by heat stress in many parts of the world. Gene effects specially interactions effects have not been extensively investigated, making it challenging to generate the basic knowledge needed to create future breeding programmers. Hence, present study was conducted among six basic generations (P1, P2, F1, F2, B1 and B2) of three inter-varietal chickpea crosses to know inheritance pattern of yield and quantitative traits under timely (E1) and late sown (E2) conditions. Detrimental effect was observed on all traits under later sown condition. The magnitude and direction of different components (d), (h), (i), (j) and (l) of gene effects were influenced by the environments and also by the parents involved in the crosses. In most of the cases digenic interaction model was adequate to explain different components of genetic variance. Most of the characters under studied including seed yield were found to be controlled by both additive as well as non-additive gene effects along with preponderance of non-additive gene effects under both the conditions. The breeding methods suggested to achieve this objective are inter-mating the most desirable segregants followed selection, diallel selective mating system, multiple crosses and bi-parental mating. However, some of the characters in few crosses were governed or prepended by fixable (additive and/or additive x additive) gene effects hence, these characters could be improved through pedigree method of selection.

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Genetic studies through generation mean analysis in chickpea under timely and delayed planting

Mahaveer Prasad Ola,

SK Jain,

Rekha Choudhay

2024

JFL

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Afield experiment was conducted to study gene effects by using 6 generations (P1, P2, F1, F2, B1 and B2) of each of four crosses (RSG-973 × HC-5, RSG-963 × RSG-973, CSJD-884 × Avrodhi and RSG-974 × CSJ-515). The G × E interaction was found significant in each cross for all characters. The mean performance was greater for every character in every generation of every cross under timely sowing compared to late sowing conditions. The environment and the genetic constitution of parents used in the crosses affected the magnitude as well asthe direction of the various components of the gene (d, h, i, j, and l) in the majority of cases. Duplicate epistasis was more prevalent than complementary epistasis. The magnitude of dominance effects and epistasis effects were observed higher than additive and main effects, respectively. Under both conditions, mostly crosses for various traits showed the prevalence of nonadditive type of gene effects (h, j, and l).

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Generation mean analysis for seed yield and its contributing traits in chickpea (Cicer arietinum L.)

Cited by 3 publications

References 0 publications

Genetic Analysis for Phenological Characters in Desi x Desi Crosses of Chickpea (Cicer arietinum L.) under Timely and Late Sown Conditions

Genetic Analysis for Phenological Characters in Desi x Desi Crosses of Chickpea (Cicer arietinum L.) under Timely and Late Sown Conditions

Estimation of gene effects using generation mean analysis in chickpea for yield and quantitative traits under timely and late sown conditions

Genetic studies through generation mean analysis in chickpea under timely and delayed planting

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