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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.

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Subject: Genetics and Plant Breeding × Author: Baldeep Singh × End date: 2020 × Type: Thesis × Thesis Type: Ph.D ×
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    ThesisItemOpen Access
    Genetic and molecular studies on morpho-physiological traits for thermo tolerance in indian mustard [Brassica juncea (L.) Czern & Coss.]
    (CCSHAU, 2016) Baldeep Singh; Thakral, N.K.
    Analysis of variance for morphological as well as physiological characters showed that the mean sum of squares were significant for almost all the traits in both the environments.Mean squares due to parent v/s crosses were also significant for all the traits, except for days to maturity, plant height, siliquae on main shoot, siliqua length, oil content, canopy temperature at 50 DAS, chlorophyll fluorescence(Fv/Fm)at 40 DAS, chlorophyll fluorescence(Fv/Fm) at 50 DAS and chlorophyll fluorescence (Fv/Fm)at 60 DAS in timely sown condition and plant height, number of primary branches per plant, siliquae on main shoot,1000 seed weight, canopy temperature at 50 DAS and canopy temperature at 70 DAS in late sown condition. The estimates of D were significant for siliquae on main shoot, number of seeds per siliqua, siliqua length, canopy temperature (0C) at 40, 60 and 70 DAS in both the environments whereas 1000 seed weight, chlorophyll fluorescence (Fv/Fm) at 40, 50, 60, 70 DAS and seedling mortality in timely sown condition and oil content in late sown condition were significant. The heritability (ns) showed the prevalence of additive variance for siliqua length, canopy temperature (0C) at 40 and 60 DAS in both environments, while for other traits an appreciable proportion of total variance was non-additive in both the environments. In the present study, an overall appraisal of gca effects revealed that parent RH0735 and BPR349-9 in timely sown condition and RH0116 and RH0555A late sown condition were good general combiners for majority of the characters. The crosses RH8814 x RH0555A, RH0644 x BPR543-3 and BPR349-9 x RH0644 in timely sown condition and crosses RH0555A x RH0644, RH0735 x RH0116 and BPR349-9 x RH0644 in late sown condition were identified as promising on the basis of their high per se performance, average heterosis, heterobeltiosis and significant sca effects for seed yield. These crosses could be extensively used in breeding programme to develop superior segregants in further breeding programmes. A total of 50 SSR primers were used, in which 42 markers were monomorphic among eight genotypes, 5 markers were polymorphic and remaining markers did not show amplification. Based on similarity index data, the eight genotypes grouped into two clusters. RH8814, RH0735, RH0116 and BPR349-9 fall into group first and RH0952, RH0555A, RH0644 and BPR543-3 fall into group second.