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Tomar, Rukam S.
- Genetic Analysis in Muskmelon (Cucumis melo L.)
Abstract Views :205 |
PDF Views:114
Authors
Affiliations
1 National Research Centre for Groundnut, Post Bag No. 5, Ivanagar Road, Junagadh - 362 001, Gujarat, IN
2 Main Vegetable Research Station, Anand Agricultural University, Anand-388 110, IN
1 National Research Centre for Groundnut, Post Bag No. 5, Ivanagar Road, Junagadh - 362 001, Gujarat, IN
2 Main Vegetable Research Station, Anand Agricultural University, Anand-388 110, IN
Source
Journal of Horticultural Sciences, Vol 3, No 2 (2008), Pagination: 112-118Abstract
Fifty genotypes of muskmelon (Cucumis melo L.) were evaluated for variability, correlation, path analysis and divergence for yield and its contributing characters. Analysis of variance showed significant variation for all the characters, indicating presence of sufficient variability in the material studied. Genotypic correlations were higher than those of their respective phenotypic correlation coefficients in majority of the cases suggesting, that, genotypic correlations were stronger, reliable and free from environmental influences. Path analysis based on genotypic association revealed that number of fruits per plant and moisture percentage was the main yieldattributing characters in fruit yield of muskmelon. Total soluble solids exhibited positive direct effect on fruit yield per plant. Thus, number of fruits per plant, moisture percentage and total soluble solids may be given more weightage for an effective selection to improve fruit yield in muskmelon. On the basis of relative magnitude of D2 values, all the genotypes were grouped in seven clusters. Maximum genetic distance was observed between clusters II and V, while clusters III and VII displayed the lowest degree of divergence. Total soluble sugars followed by total soluble solids and fruit yield per plant contributed the most towards divergence.Keywords
Muskmelon, Variability, Correlation, Path Analysis, Genetic Divergence.- Combining Ability Studies in Muskmelon (Cucumis melo L.)
Abstract Views :215 |
PDF Views:102
Authors
Affiliations
1 Main Vegetable Research Station, Anand Agricultural University, Anand, Gujarat, IN
1 Main Vegetable Research Station, Anand Agricultural University, Anand, Gujarat, IN
Source
Journal of Horticultural Sciences, Vol 1, No 2 (2006), Pagination: 109-115Abstract
The parent Hara Madhu in E1, AMM-01-18 and AMM-02 -26 in E2 and AMM-01-18, AMM-02-26 and Hara Madhu on pooled basis exhibited positive and significant GCA effects for fruit yield per plant. Thus these three parents appeared to be good general combiners for fruit yield. Out of these parents AMM-01-18 had a good combining ability for fruit yield per plant, number of primary branches, number of fruits per plant, fruit weight, moisture content, total soluble solids, acidity and total soluble sugars on pooled basis. Specific combining ability effects for fruit yield and yield attributing traits revealed significant and positive SCA effects in fourteen crosses for number of primary branches per plant, nine for fruit length, twelve for fruit girth, ten for fruits per plant, eleven for fruit weight, nine for fruit yield per plant, eleven for flesh thickness, nine for moisture content, twenty for total soluble solids, twenty for acidity and fifteen for total soluble sugars data in the desired direction in pooled analysis. However, some crosses like AMM-01-18 x AMM-02-26, Hara Madhu x RM-50 and AMM- 01-18 x DM-1 exhibited significant SCA effects for fruit yield per plant over environments along with some of the component traits in different environments.Keywords
GCA, SCA.- Heterosis Studies in Muskmelon (Cucumis melo L.)
Abstract Views :175 |
PDF Views:131
Authors
Affiliations
1 National Research Centre for Groundnut, Post Bag No.5, Ivanagar Road, Junagadh – 362 001, Gujarat, IN
1 National Research Centre for Groundnut, Post Bag No.5, Ivanagar Road, Junagadh – 362 001, Gujarat, IN