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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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2016 - 20202
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Subject: Nematology × Author: Gurpreet Singh ×
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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
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    ThesisItemOpen Access
    Integrated management of root-knot nematode, meloidogyne javanica in hybrid tomato
    (CCSHAU, 2016) Gurpreet Singh; Verma, K.K.
    Studies were carried out on integrated management of root-knot nematode, Meloidogyne javanica in hybrid tomato under field conditions. This research endeavor consisted of three pronged strategies in which experimentation was done at nursery stage and under main field conditions at two stages of plant growth and nematode multiplication period. Individual practices of nematode management such as biocontrol agents (Trichoderma viride @ 50 g/m2, Paecilomyces lilacinus @ 50 g/m2, chemicals (carbofuran @ 7 g/m2, cartap hydrochloride @7.5 g/m2) and organic amendments (neem and mustard cake each @ 750 g/m2) were first evaluated in nursery beds and then treated nursery was transplanted in the main field to have integration of these components for better plant growth, yield and minimum nematode reproduction and multiplication. At nursery stage, there were 7 treatments of which the best two treatments, i.e., neem cake and T. viride along with untreated check were combined with three treatments in the main field.(T. viride @ 2.5 kg/ha, carbofuran @ 1 kg a.i./ha along with untreated check) making a total of nine treatments. Observations recorded at the time of transplanting revealed maximum plant growth of seedlings and minimum number of galls in neem cake followed by T. viride. When these treated seedlings were transplanted in M. javanica infested main field, the observations taken at 50 days after transplanting (mid season evaluation experiment) revealed that highest plant growth parameters were observed in neem cake treated nursery when transplanted in T. viride (main field application). Minimum nematode reproduction and multiplication was observed in neem cake (nursery) integrated with T. viride (field) followed by T. viride (nursery) + T.viride (main field). Similarly, when treated seedlings were transplanted in another field which was terminated at harvesting of tomato, it was observed that highest tomato yield was recorded in neem cake at nursery stage integrated with T. viride at main field followed by nursery application of T. viride combined with T. viride (field). Minimum nematode reproduction and multiplication in terms of number of galls, number of egg masses per plant, number of eggs per egg mass and final nematode population in the soil was observed in neem cake (nursery) + T. viride (field) followed by T.viride at nursery integrated with T. viride as main field application. Such studies will lead us to a scenario where management of M. javanica would be possible by integration of ecofriendly, economic and effective components starting from nursery upto main field application in hybrid tomato since the varieties have been replaced by hybrids.