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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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Author: Jolapuram Siva Krishna × End date: 2023 × Start date: 2023 × Type: Thesis ×
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    ThesisItemOpen Access
    Morpho-Physiological and Biochemical characterization of upland cotton (Gossypium hirsutum L.) genotypes
    (CCSHAU, Hisar, 2023-09) Jolapuram Siva Krishna; Somveer
    The current investigation aimed to explore the “Morpho-physiological and biochemical characterization of upland cotton (Gossypium hirsutum L.) genotypes”. A total of 77 upland cotton genotypes were examined in this experiment conducted at Chaudhary Charan Singh Haryana Agricultural University, Hisar, with a focus on estimating genetic variability, genetic diversity and correlation analysis among various traits. Among the 18 qualitative traits investigated, notable variations were observed in leaf color, leaf hairiness, leaf shape, plant stem hairiness, flower petal color, flower stigma position, pollen color, boll shape, and boll surface. Analysis of variance revealed significant differences in all studied traits among the progenies. The slightly higher value of PCV compared to GCV indicated that the traits were less influenced by environmental factors. Traits such as days to first flower, number of locules per boll, number of seeds per locule, ginning out turn, seed index, crude protein content, photosynthetic rate, sugar, phenol, oil, and seed cotton yield per plant exhibited moderate to low GCV and PCV values. Moreover, characters such as boll weight, plant height, number of seeds per locule, seed index, leaf area, chlorophyll (SPAD) value, crude protein, and seed cotton yield per plant displayed high heritability coupled with moderate genetic advance percent mean. Correlation analysis revealed a significantly positive relationship between seed cotton yield per plant and the number of bolls per plant, boll weight, number of locules per boll, ginning out turn, lint index, and other yield-contributing traits. Path-coefficient analysis highlighted the maximum positive direct effects of number of bolls per plant, boll weight, ginning out turn, photosynthetic rate, and sugar on seed cotton yield per plant. The genetic diversity analysis categorized the 77 upland cotton genotypes into three clusters. Cluster-I comprised the largest number of genotypes (36), followed by cluster II (30), which together accounted for nearly 90% of the genotypes. Cluster III, however, only consisted of 10% of the genotypes, exhibiting higher cluster mean values for several yield-contributing traits. Cluster II and cluster III demonstrated the maximum inter-cluster distance, followed by cluster I and cluster II, indicating greater genetic dissimilarity between genotypes of these clusters. Genotypes belonging to cluster I and II, characterized by a wider inter-cluster distance, hold potential for generating significant heterosis in breeding programmes.