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- Title
EVALUATION OF NEW F<sub>1</sub> HYBRIDS USING HYBRID VIGOUR ANALYSIS IN UPLAND COTTON FOR SEED COTTON YIELD AND FIBRE QUALITY TRAITS.
- Authors
Shakeel, Amir; Mehmood, Hira; Mansoor Sheraz, Muhammad; Saeed, Asif; Farrukh Saleem, Muhammad; Nabi, Ghulam
- Abstract
This study was carried out in Department of Plant Breeding and Genetics, University of Agriculture, Faisalabad, Pakistan during 2011. Fifteen newly developed F1 hybrids were evaluated by estimating the magnitude of heterosis, heterobeltiosis and standard heterosis for yield and quality traits of upland cotton. Five cotton genotypes (TH- 41-83, Stoneville-70, Cocker-307, DPL-26 and Allepo-41) were used as female parents while three genotypes (CIM-707, LSS and FH-1000) were taken as male parents. These genotypes were crossed to get fifteen hybrids which were evaluated keeping Bt-121 as a check variety. The analysis of variance indicated significant genotypic differences among parents and their hybrids for all traits studied. The hybrid Stoneville-70 × LSS showed significant positive heterosis and heterobeltiosis for seed cotton yield (13.3% and 6.13%) and yield contributing components like number of bolls per plant (15.9% and 10.7%), boll weight (32% and 30%) and for fibre quality traits like fibre strength (13.1% and 12.9%). The hybrid DPL-26 × FH-1000 showed significant positive heterosis and heterobeltiosis for lint (7.8% and 7.5%) and adequate negative but non-significant heterosis, heterobeltiosis and standard heterosis for plant height (-7.4%, -9.4% and -10.7%) and fibre fineness (-14.6%, - 19.4% and -9.5%), respectively. The hybrid DPL-26 × CIM-707 showed significant positive mid-parent heterosis and better-parent heterosis for oil content (15.9 and 10.1) and protein content (30.2% and 29.2%). Only few hybrids showed significant positive heterosis for fibre quality parameters. Stoneville-70 was found as the best female parent performer and LSS as the best male parent performer in the present genotypes. Hence, only, these two genotypes can be very helpful for improvement of different yield and quality traits.
- Subjects
COTTON breeding; GENOTYPE-environment interaction; AGRONOMY; HETEROSIS in plants; AGRICULTURAL industries
- Publication
Journal of Agricultural Research (03681157), 2014, Vol 52, Issue 4, p471
- ISSN
0368-1157
- Publication type
Article