Thumbnail Image

Theses

Browse

2003 - 20052
Reset filters
Subject: Plant Breeding × Author: Kamal Jeet Singh × Start date: 1999 × Thesis Type: M.Sc ×
Reset filters

Search Results

Now showing 1 - 2 of 2
  • Thumbnail Image
    ThesisItemOpen Access
    Studies on floral traits and chemically induced male sterility in wheat (Triticum aestivum L. em. Thell)
    (CCSHAU, 2003) Kamal Jeet Singh; Rana, R. K.
    The present study was carried out with the objectives of screening wheat lines for genetic variability in floral traits that influence allogamy and to study the effects of CHA on different wheat varieties for induction of male and female sterility and its effects on morphological traits. Data was recorded on various traits and morphological traits. Analysis of variance revealed that considerable amount of variability was present among different genotypes. The phenotypic and genotypic coefficient of variation of anther extrusion (%) was relatively greater than that for other characters and indicated the existence of greater amount of variability among genotypes. Anther extrusion (%) showed maximum heritability and genetic advance as percent of mean for all the traits studied. CH 9832 (1000ppm), although induced higher level of male sterility (95.11-100%) but at the same time also affected female fertility and exhibited a variation for female sterility (2.10-65.83%). CH 9832 was not found suitable for HW 2016, WH 671 and PBW 373 because of its phytotoxic effects on female fertility. Genotype WH 291 expressed maximum (24.95 %) out crossing. CHA spray resulted in reduction in plant height, spike length, peduncle length and pollen viability%, in general.
  • Thumbnail Image
    ThesisItemOpen Access
    Studies on floral traits and chemically induced male sterility in wheat (Triticum aestivum L.em.Thell)
    (CCSHAU, 2005) Kamal Jeet Singh; Rana, R.K.
    The present study was carried out with the objectives of screening wheat lines for genetic variability in floral traits that influence allogamy and to study the effects of CHA on different wheat varieties for induction of male and female sterility and its effects on morphological traits. Data was recorded on various traits and morphological traits. Analysis of variance revealed that considerable amount of variability was present among different genotypes. The phenotypic and genotypic coefficient of variation of anther extrusion (%) was relatively greater than that for other characters and indicated the existence of greater amount of variability among genotypes. Anther extrusion (%) showed maximum heritability and genetic advance as percent of mean for all the traits studied. CH 9832 (1000ppm), although induced higher level of male sterility (95.11-100%) but at the same time also affected female fertility and exhibited a variation for female sterility (2.10-65.83%). CH 9832 was not found suitable for HW 2016, WH 671 and PBW 373 because of its phytotoxic effects on female fertility. Genotype WH 291 expressed maximum (24.95 %) out crossing. CHA spray resulted in reduction in plant height, spike length, peduncle length and pollen viability%, in general.