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Subject: Plant Breeding and Genetics × Author: Khushpreet Kaur × End date: 2019 × Start date: 2012 × Thesis Type: M.Sc ×
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    ThesisItemOpen Access
    Characterization of an intra-hirsutum RIL population of RS 2013 × PUSA 56-4 cross
    (Punjab Agricultural University, Ludhiana, 2016) Khushpreet Kaur; Rathore, Pankaj
    The current investigation was carried out to study the genetic variability among recombinant inbred lines derived from the cross between American cotton lines RS 2013 and PUSA 56-4. The experimental plant material consisted of 193 recombinant inbred lines, parents, and standard check. The field evaluation of plant material was undertaken in a simple lattice design (14 x 14) with two replications at Ludhiana and Faridkot for two kharif seasons of 2014 and 2015. Observations were recorded on various yield and its component traits and fibre quality parameters. Standard check (LH 2108) significantly outperformed the RILs for seed cotton yield, lint yield, ginning outturn, and bolls per plant. Line 37 recorded the highest boll weight (4.2 g) and lint index (4.8). The range for some important traits recorded to be 44.5-119.4 (seed cotton yield plant-1), 14.6-40.8 (lint yield plant-1), 2.5-4.2 (boll weight), 28.3-35.5 % (ginning outturn), 1.6 - 3.4 (monopods plant-1), 22.7 - 28.6 mm (2.5% span length), 21.6 - 28.9 g/tex (fibre strength), and 3.2 - 4.6 (micronaire). A subset of the lines along with parents, standard check and TM-1 was subjected to molecular genetic analysis employing cotton specific microsatellite markers. The 40 lines were grouped into three main clusters. Both the parents were grouped together in the same cluster.