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BREEDING FOR ENHANCED FIBRE QUALITY TRAITS IN UPLAND COTTON (Gossypium hirustum L.) THROUGH LINE × TESTER ANALYSIS.
- Source :
- Pakistan Journal of Biotechnology; 2024, Vol. 21 Issue 1, p101-113, 13p
- Publication Year :
- 2024
-
Abstract
- The experiment was conducted using a randomized complete block design with three replications at Shah Abdul Latif Experimental Farm, Sindh Agriculture University, Tandojam. Following a line × tester mating design in upland cotton (Gossypium hirsutum L.), twenty-one cross combinations were obtained from seven females and three males. F1 and F2 generations, along with their parents, were sown in a randomized complete block design with three replications during 2012-13 and 2013-14. Studied traits included lint yield (g) per plant, G.O.T (%), staple length (mm), fiber fineness (mic.value), and fiber strength (g/tex). Throughout the growing period, recommended cultural practices were followed. Analysis of variance revealed high significance for genotypes, parents, crosses, and their interactions (P×C) for all traits. In the F1 generation, lint yield and staple length under line × tester (L×T) were highly significant. For the F2 generation, genotypes, parents, crosses, and P×C were highly significant for all traits except G.O.T%, where lines, testers, and L×T were highly significant for all traits except G.O.T%. Cross VH-292 × VH-291 excelled in lint yield per plant, while CRIS-342 × IR-3701 demonstrated superior fiber fineness and strength. VH-292 × VH-291 also displayed higher lint yield per plant, while CRIS-342 × FH-113 exhibited longer staple length with increased fiber fineness. Significant mean squares for genotypes (parents, crosses, and parents × crosses) indicate the data's utility for assessing parental performance, hybrid evaluation, heterotic effects, and inbreeding depression. [ABSTRACT FROM AUTHOR]
- Subjects :
- COTTON
BLOCK designs
ANALYSIS of variance
FIBERS
PLANT yields
AGRICULTURE
Subjects
Details
- Language :
- English
- ISSN :
- 18121837
- Volume :
- 21
- Issue :
- 1
- Database :
- Complementary Index
- Journal :
- Pakistan Journal of Biotechnology
- Publication Type :
- Academic Journal
- Accession number :
- 177684773
- Full Text :
- https://doi.org/10.34016/pjbt.2024.21.01.875