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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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20201
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Subject: Nematology × Author: Gurpreet Singh × End date: 2022 × Start date: 2020 ×
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    ThesisItemOpen Access
    Studies on life cycle, pathogenicity and resistance of Meloidogyne graminicola on pearl millet [Pennisetum glaucum (L.) R. Br.]
    (CCSHAU, Hisar, 2020-02) Gurpreet Singh; Kanwar, R.S
    Investigations were carried out on screening of germplams of pearl millet against Meloidogyne graminicola, its life cycle and pathogenicity on susceptible hybrid HHB 272. Biochemical and physiological changes induced by Meloidogyne graminicola susceptible and resistant hybrids of pearl millet were also studied. Out of 36 germplasms lines of pearl millet 25 showed resistant, 9 moderately resistant and only 2 showed susceptible reaction. Under screen house conditions nematode completed its life cycle J2 to J2 in 23 days at average maximum temprature 35.1 0C maximum and a minimum average of 24.6 0C. 500 J2/kg soil was found pathogenic on pearl millet hybrid HHB 272. All the inoculum levels significantly reduced the plant growth parameters except dry plant weight at 2000 and 4000 J2/kg soil. Nematode multiplication rate was also increased up to 2000 J2/kg soil but after this level it was reduced. Males population in the roots was increased with higher inoculums level. Per cent increase in protein and phenol of root and shoot of pearl millet was recorded in resistant (HHB 146) and susceptible hybrid (HHB 272). Protein content was increased more in roots of susceptible hybrids as compared to resistant hybrid. Increase in the total protein was high up to 30 DAI and became lower at 45 DAI. Contrary to it, phenol content in root and shoots was increased more in resistant hybrid as compared to susceptible hybrid. At all the observation periods, phenol content was higher in resistant plants as compared to susceptible plants. Total sugar in shoot portion decreased in both the hybrids while it increased in the infected roots. Per cent decrease in total sugar content in shoots was reduced with passage of time. Increase in the sugar per cent in susceptible hybrid was much higher than the resistant hybrid. Physiological parameters viz., chl a, chl b, carotenoid, NDVI were reduced more in susceptible than resistant hybrids. Decrease in all these parameters was much pronounced in susceptible hybrids as compared to resistant plants