Studies on Combining Ability Through Line x Tester Analysis in Garden Pea<i>(PIsum Sativum</i>L.)

Kumar, Davendra; Malik, Sunil; Kumar, Amit; Singh, Suneet; Kumar, Sandeep

doi:10.5958/0976-4623.2016.00014.1

Cited by 3 publications

(3 citation statements)

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“…Furthermore, they propose that plant breeders should strategically plan forthcoming breeding work to achieve high yields in field pea cultivation. Similar observations and recommendations have been supported by Ceyhan et al [32], Kumar et al [33] and Kumar et al [34] for field pea. Certain findings might support the possibility of determining these traits through the hybridization of particular parents.…”

Section: Per Se Performance Of Parents and Their Crossessupporting

confidence: 89%

Assessment of Gene Action and Identification of Heterotic Hybrids for Enhancing Yield in Field Pea

Yadav,

Sharma,

Kumar

et al. 2023

Horticulturae

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Eight field pea parental lines and their twenty-eight F1s resulting from diallel design (excluding reciprocal) were analyzed for their combining ability and heterosis for yield and associated traits. ANOVA revealed significant variation among parents and among hybrids for days to 50% flowering, plant height, total number of pods, effective pods, seeds per pod, 100-seed weight, biological yield and seed yield; pod length also revealed significant differences among hybrids, suggesting the occurrence of considerable variability for studied traits. Crosses P-1541-16 × P-92-97-11 and P-1541-16 × P-1297-97 displayed significant heterosis over better-parent and control varieties for seed yield and associated traits. Combining ability analysis showedthat SCAvariance was considerably higher than corresponding GCAvariance for all traits. Genotype Aman and P-1297-97 were identified as good general combiners for seed yield, while cross P-1541-16 × P-1297-97, Aman × EC-564817, P-1541-16 × P-92-97-11 and P-1297-97 × P-92-97-11 were identified as specific cross-combiners for most of the studied traits. Consequently, these crosses might be exploited in future breeding programs to find desired segregants. PCA explained 81.68% and 83.34% variability in parents and crosses, respectively, for yield component. Furthermore, trait association between GCA effects and SCA effects demonstrates that biological yield, total number of pods, and effective pods exhibit additive gene action, but 100-seed weight exhibits non-additive gene action.

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Section: Per Se Performance Of Parents and Their Crossessupporting

confidence: 89%

Assessment of Gene Action and Identification of Heterotic Hybrids for Enhancing Yield in Field Pea

Yadav,

Sharma,

Kumar

et al. 2023

Horticulturae

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“…Ten out of the 12 crosses showed signifcant positive MP heterosis and 10 crosses for BP heterosis. Similar magnitude of heterosis was also reported by [13,[33][34][35][36][37][38][39].Te best crosses, which were classifed on the basis of heterosis parameters, showed that two out of the 12 studied crosses were derived from P 4 (Line 4.1.18) as male or female parent that was classifed as a good performance for plant height, no. of pods/plant, average weight of pod, total fresh pods, weight of small pods/plot, pods length, pods diameter, and weight of medium pods.…”

Section: Discussionsupporting

confidence: 81%

Genetic Components Derived Parameters and Heterosis in Okra under Saudi Arabia Conditions

Abdelkader,

Mahmoud,

Diyasty

et al. 2024

Genetics Research

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Four parental genotypes of okra were crossed in complete diallel design to study the direction and extent of relative heterosis and heterobeltiosis for yield and its associated traits for utilization of existing genetic diversity to develop heterotic F1 hybrids in okra. The additive genetic component (D) was significant in all studied traits except average pod weight. Nonadditive (H1 and H2) components were found to be significant in all studied traits. However, the values of the dominant effect (H1) were smaller than the D components for no. of nodes/plant, no. of pods/plant, weight of medium pods, weight of large pods, and total fresh pod yield. The maximum significant MP heterosis in the desirable direction (149.9%) was recorded for the weight of large pods/plot. The maximum significant heterobeltiosis in the desirable direction (120.1%) was recorded for the weight of small pods/plot followed by total fresh pod yield (107.4%), the weight of large pods/plot (104.9%), weight of medium pods/plot (92.1%), average pod weight (51.8%), number of pods/plant (38.4%), and plant height (34.3%). It could be concluded that plant height, average pod weight, and the number of branches could be considered for the development of elite hybrids (heterosis breeding) or inbred lines (pure line selection) in succeeding generations. Therefore, these parameters can be considered for selecting genotypes to improve the pod yield of okra. The superior crosses identified through heterosis analysis were Egyptian Balady × Line 4.1.18 (30.8 ton/ha), Line 4.1.18 × Egyptian Balady (29.8 ton/ha), Dwarf Green Long Pod × Line 4.1.18 (28.3 ton/ha), and Egyptian Balady × Dwarf Green Long Pod (27.6 ton/ha) as these crosses had high performance as well as significant and higher estimates of heterobeltiosis for fruit yield per plant and yield attributing other characters.

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“…Higher estimation of dominance variance (σ 2 SCA) was observed as compared to additive variance (σ 2 GCA) for all the characters except days to 50% tasseling (Table 1) probably due to predominance of non-additive gene action, suggesting the scope of improvement of these characters through heterosis breeding. Similar nonadditive gene action was also reported by Suneetha et al, (2000) for days to 50 per cent tasseling and days to 50 per cent silking, Kanagarasu et al, (2010) and Kumar et al, (2014) for grain yield, cob length, plant height, ear height, 1000 grain weight, grain rows per cob, days to 50 percent tassel and days to 50 percent silk and Ali et al, (2012) for number of grain rows per cob and 100-grain weight, Kumar et al, (2012) and Ahmed et al, (2015) for plant height, days to 50 % tasseling, days to 50 % silking, cob length, cob girth, number of grain rows per cob, number of grains per row, 1000-grain weight and grain yield in maize in their study. Singh and Singh (1998) also reported non-additive gene action for plant height, ear length, kernel rows, 1000 grain weight and yield in maize.…”

Section: Resultsmentioning

confidence: 99%

Investigation on genetic control for yield and yield contributing traits in advanced generation of maize (Zea mays L.)

Begum

Amiruzzaman

Ahmed

et al. 2018

Bangladesh J. Agric. Res

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Twenty five cross progeny of maize developed by Plant Breeding Division of BARI were evaluated by determining general combining ability (GCA) and specific combining ability (SCA) effects following line × tester design involving five female lines and five testers for grain yield and other yield contributing traits. Highly significant genotypic variances specified inclusive inconsistency existed among the genotypes. None of the lines showed significant GCA effects for all the characters, but the line Pac-60/S4-3 and Pac-60/S4-9 showed negative GCA effect for days to 50% tasseling and silking which is desirable to develop early variety. Additionally, the line Pac-60/S4-9, Pac-60/S4-18 and Pac-60/S4-21 showed negative GCA effect for plant and ear height which is also desirable to develop dwarf variety. Nevertheless, none of the cross showed significant SCA effect for any character studied, but crosses Pac-60/S4-21×BIL-113, Pac-60/S4-21×Utn/S4-15, Pac-60/S4-18×Utn/S4-8, Pac-60/S4-3×BIL-113, Pac-60/S4-3×Utn/S4-18, Pac-60/S4-9×Utn/S4-15, Pac-60/S4-9×BIL-113 and Pac-60/S4-21×Utn/S4-10 had higher yield with positive SCA effects. However, considering yield data along with lodging percentage, five crosses namely Pac-60/S4-21×BIL-113, Pac-60/S4-21×Utn/S4-15, Pac-60/S4-21×Utn/S4-10 Pac-60/S4-9×Utn/S4-15 and Pac-60/S4-3×BIL-113 showed better performance.

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Studies on Combining Ability Through Line x Tester Analysis in Garden Pea(PIsum SativumL.)

Cited by 3 publications

References 0 publications

Assessment of Gene Action and Identification of Heterotic Hybrids for Enhancing Yield in Field Pea

Assessment of Gene Action and Identification of Heterotic Hybrids for Enhancing Yield in Field Pea

Genetic Components Derived Parameters and Heterosis in Okra under Saudi Arabia Conditions

Investigation on genetic control for yield and yield contributing traits in advanced generation of maize (Zea mays L.)

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