ANALYSIS OF COMBINING ABILITY, HETEROSIS EFFECT AND HERITABILITY ESTIMATE OF YIELD-RELATED CHARACTERS IN SHALLOT (Alium cepa var. ascalonicum Baker)

Farid, Noor; Sugiharto, Arifin Noor; Herison, Catur; Purwito, Agus; Sutjahjo, Surjono Hadi

doi:10.17503/agrivita-2012-34-1-p036-43

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“…From the present results of heterosis and heterobeltiosis, four combinations were observed with maximum values for bulb yield and its contributing traits. Similar results were obtained by Farid et al (2012) who observed that these kinds of combinations with most of the desirable traits can be used in future hybrid development program. Kant et al (2011) studied heterosis and heterobeltiosis in cross combinations of winter and spring wheat.…”

Section: Discussionsupporting

confidence: 84%

Assessment of Genetic Divergence and Its Utilization in Hybrid Development in Cultivated Onion (Allium Cepa L.)

2020

THE JAPS

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Exploration of genetic variation may help to select diverse parents for open pollinated variety and hybrid development program in onion (Allium cepa L.). Thirty-five onion genotypes were analyzed by two-way cluster analysis and principal component analysis (PCA) on the basis of phenotypic traits. These genotypes were grouped in five different clusters. PCA provided information for variation in genotypes on the basis of studied traits. Ten genotypes were selected from five diverse clusters and hybridized in a line × tester mating fashion. Twenty-four F1 combinations were developed and raised along-with parents for assessment of hybrid vigor, commercial heterosis and genetic correlation. Data was analyzed for morphological and biochemical traits. Maximum commercial heterosis (heterosis computed over commercial standard/check variety) for bulb yield per plot was observed in combination MKS-SGB × MKS-GBP-01, MKS-57404 × Super Sarhad and MKS-SGB × Mustang (55.77%, 36.70% and 32.90%), respectively. Maximum better parent heterosis for bulb yield per plot was in combinations MKS-SGB × MKS-GBP-01 (31.01%), followed by MKS-TEG × Mustang, MKS-57404 × Super Sarhad and MKS-SGB × Mustang (13.76%, 12.49% and 11.79%), respectively. Genetic correlation coefficient showed that bulb yield per plot showed highly significant and positive association with single bulb weight, bulb diameter, significant positive association with leaf density (number of leaves per plant), leaf width (diameter) and significant but negative association with total soluble solids. Yield per plot showed a negative association with days to maturity. Present study revealed that cluster analysis and PCA can play an important role in effective parent selection without compromising genetic diversity for development of potential hybrids for commercial exploitation.

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Section: Discussionsupporting

confidence: 84%

Assessment of Genetic Divergence and Its Utilization in Hybrid Development in Cultivated Onion (Allium Cepa L.)

2020

THE JAPS

View full text Add to dashboard Cite

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ANALYSIS OF COMBINING ABILITY, HETEROSIS EFFECT AND HERITABILITY ESTIMATE OF YIELD-RELATED CHARACTERS IN SHALLOT (Alium cepa var. ascalonicum Baker)

Cited by 1 publication

References 0 publications

Assessment of Genetic Divergence and Its Utilization in Hybrid Development in Cultivated Onion (Allium Cepa L.)

Assessment of Genetic Divergence and Its Utilization in Hybrid Development in Cultivated Onion (Allium Cepa L.)

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