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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: Chemistry × Author: Suman × End date: 2019 × Start date: 2010 × Type: Thesis × Thesis Type: M.Sc ×
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    ThesisItemOpen Access
    Residue dynamics and leaching potential of chlorantraniliprole in chilli crop
    (CCSHAU, 2017) Suman; Sushil
    The main objective of this study was to understand the persistence behaviour of new novel insecticide chlorantraniliprole (coragen 18.5 SC) in chilli fruit and its leaching behaviour in sandy loam soil. Recovery experiments were carried out at 0.01 and 0.05 μg/g fortification level in both chilli and soil samples for which average recoveries were found to be 85.23% and 87.46% in chilli samples and 85.92% and 87.11% in soil samples respectively. For dissipation / persistence study a field experiment was conducted following application of single dose (30 g a.i./ha) and double dose (60 g a.i./ha) on chilli crop. The initial residues of CAP at single and double doses were 3.16 and 4.68 mg/kg. Residues persisted upto 7th and 15th day in single and double doses respectively, after which BDL (0.01 mg/kg) comes. For single dose half-life value was of 1.18 days with degradation rate constant (k) value of 0.58 day -1. For double dose half-life was 2.05 days with degradation rate constant (k) value of 0.33 day-1. Leaching behavior of CAP in soil was studied at single (5.6 μg) and double dose (11.2 μg) respectively, for which soil plexi columns were packed and percolated with 35 ml of tap water after each 24 hours. Total amount of CAP recovered out of 5.6 and 11.2 μg were 82.40% and 81.42% from single and double doses respectively. Maximum retention of pesticide in both doses was in 0-5 cm soil core i.e. 79.82% in single dose and 79.11% in double dose. None of the leachate fractions from both the treatments showed the presence of chlorantraniliprole residue considering it safe for ground water table after field application.