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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: Fruit Science × Author: Pooja × End date: 2023 × Start date: 2020 × Type: Thesis × Thesis Type: Ph.D ×
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    ThesisItemOpen Access
    Effect of herbicides on weed control and quality of guava cultivar L-49
    (Chaudhary Charan Singh Haryana Agricultural University hisar, 2022-10) Pooja; Goyal, Ramesh Kumar
    The experiment entitled “Effect of herbicides on weed control and quality of guava cultivar L-49” was carried out at Experimental orchard of Department of Horticulture, CCS Haryana Agricultural University, Hisar during the year 2019-20 and 2020-21 in winter season. The experiment was carried out to find the effect of herbicides and sequential applications of herbicides on soil properties, weed control, growth characters, fruit and yield attributes on guava cultivar L-49. The treatments comprising 21 levels of herbicides in experiment 1 and 15 levels of sequential applications of herbicides in experiment 2. The treatments were laid out in a randomized block design with three replications keeping a net plot size of 6.0 x 6.0 m separately. The data were recorded on various parameters, which were influenced by different levels of herbicides and sequential applications of herbicides. In experiment 1, weed free treatment was found best for soil properties viz. ECe and available N, P, K, Zn and Fe; weed parameters viz. weed density, visual mortality, fresh and dry weight; growth parameters viz. plant height, plant spread, leaf area, chlorophyll content; fruit parameters viz. fruit weight, fruit length, fruit breadth, number of fruits, yield, fruit firmness, fruit colour; and quality parameters viz. TSS, acidity, ascorbic acid, TSS:acidity ratio and pectin content. Among herbicidal treatments, the combination of glyphosate (1.26 kg/ha) + carfentrazone (20 g/ha) and glyphosate (1.26 kg/ha) + oxyflourfen (100 g/ha) were found best. In experiment 2, from all the sequential application of herbicides, the treatment glyphosate 1.26 kg/ha (July) fb glyphosate 1.26 kg/ha (August) fb glyphosate 1.26 kg/ha (September) was found best for soil properties viz. ECe and available N, P, K, Zn and Fe; weed parameters viz. weed density, visual mortality, fresh and dry weight; growth parameters viz. plant height, plant spread, leaf area, chlorophyll content; fruit parameters viz. fruit weight, fruit length, fruit breadth, number of fruits, yield, fruit firmness, fruit colour; and quality parameters viz. TSS, acidity, ascorbic acid, TSS:acid ratio and pectin content.