Thumbnail Image

Chaudhary Charan Singh Haryana Agricultural University, Hisar

Chaudhary Charan Singh Haryana Agricultural University popularly known as HAU, is one of Asia's biggest agricultural universities, located at Hisar in the Indian state of Haryana. It is named after India's seventh Prime Minister, Chaudhary Charan Singh. It is a leader in agricultural research in India and contributed significantly to Green Revolution and White Revolution in India in the 1960s and 70s. It has a very large campus and has several research centres throughout the state. It won the Indian Council of Agricultural Research's Award for the Best Institute in 1997. HAU was initially a campus of Punjab Agricultural University, Ludhiana. After the formation of Haryana in 1966, it became an autonomous institution on February 2, 1970 through a Presidential Ordinance, later ratified as Haryana and Punjab Agricultural Universities Act, 1970, passed by the Lok Sabha on March 29, 1970. A. L. Fletcher, the first Vice-Chancellor of the university, was instrumental in its initial growth.

Browse

20121
Reset filters
Subject: Genetics and Plant Breeding × Author: Baldeep Singh × End date: 2014 × Start date: 2010 × Type: Thesis × Thesis Type: M.Sc ×
Reset filters

Search Results

Now showing 1 - 1 of 1
  • Thumbnail Image
    ThesisItemOpen Access
    Genetic divergence analysis in germplasm of Indian mustard (Brassica juncea L. Czern & Coss.).
    (CCSHAU, 2012) Baldeep Singh; Thakral, S.K.
    An attempt was made to study the genetic divergence amongst 200 germplasm lines of Indian mustard. Significant differences for various traits indicated substantial amount of variability existed among the germplasm lines for various traits. High heritability coupled with high genetic advance was observed for seed yield and most of the traits. Based on relative magnitude of genetic distances 200 germplasm lines were grouped into 10 clusters. The clusters I comprising 28 germplasm lines followed by cluster II and III consosting of 26 germplasm lines, cluster IV, V, VI, VII, VIII,IX and X contained 22,21,21,21,15,11 and 9 germplasm lines, respectively. No correspondence was observed between the geographical and the genetic diversity, but distribution of genotypes were random and independent.The magnitude of inter-cluster distance was greater than intra-cluster diatances, suggesting presence of diversity among the clusters. The maximum inter-cluster distance was observed cluster VI and VIII (6.542) followed by cluster IX and X (6.447); cluster VIII and IX (6.420); cluster VIII and X (6.408); cluster V and IX (6.394); cluster VII and VIII (6.376); cluster III and VIII (6.359); cluster II and VIII (6.222) and cluster V and VIII (6.171).The use of germplasm lines in hybridization from these clusters having most of the desirable characters are likely to produce more heterotic hybrids vis a vis transgressive segregants. The D2 analysis indicated that high variation for various seed yield contributing traits viz. number of secondary branches per plant, number of primary branches per plant, siliqua angle, 1000 seed weight and speed of germination contributed more than 70% of the total divergence and had maximum contribution towards genetic divergence. In general genotypic correlation coefficient were higher in magnitude than theirphenotypic correlation coefficient. Seed yield per plant was found to be positively and significantly correlated with plant height, number of primary branches per plant, number of secondary branches per plant, main shoot length, and number of siliquae on main shoot. Path analysis reveled that characters such as number of secondary branches/plant, number of siliquae on main shoot,germination percentage and primary branches angle were the major component traits of seed yield and hence these characters should be given priority in selection in view of their high heritability coupled with high genetic advance also. The genotypes RC- 1001,RC-1004,RC-1007,RC-1008,RC-1200,RC-1017,RC-1021,RC-1118, RC-1070,RC-1149,RC- 1548,RC-1347selected from various divergent clustetrs having most of the desirable characters were identified as promising on the basis of genetic divergence and per se performance for several traits particularly for seed yield and oil content and can be used in future breeding programme for improving seed yield and component traits in order to enhance the productivity of Indian mustard.