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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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2019 - 201912020 - 20221
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Subject: Nematology × Author: Deepak Kumar × Start date: 2019 × Type: Thesis ×
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    ThesisItemOpen Access
    Studies on the effect of various factors on survival and efficacy of Heterorhabditis spp. against brinjal shoot and fruit borer, Leucinodes orbonalis Guenee
    (Chaudhary Charan Singh Haryana Agricultural University hisar, 2022-11) Deepak Kumar; Anil Kumar
    Present investigations were carried out on “Studies on the effect of various factors on survival and efficacy of Heterorhabditis spp. against brinjal shoot and fruit borer, Leucinodes orbonalis Guenee” under laboratory and field conditions in Department of Nematology, CCS HAU, Hisar between years, 2019 to 2022. Entomopathogenic nematodes (EPNs) infestations were found in 40 of the 160 soil samples that were collected from eight districts of Haryana during survey. On the basis of corpse colour, 25 of the 40 soil samples tested positive for Steinernema species and eight of those contained Heterorhabditis species. The highest frequency of occurrence of EPNs was found in Panipat (40.9%) followed by Hisar (37.5%) and Sonipat district (36.4%), while Karnal district had the lowest incidence of EPNs i.e. 19 percent. Among the four temperature tested for storage, both of the effective isolates of H. indica (D-2 & D-6) had greater viability at a temperature of 25º C. The highest multiplication of IJs of H. indica D-2 and H. indica D-6 was observed in modified dog biscuit medium followed by modified wout’s medium-III. Survival and activity of EPNs decreased gradually in glycerin and liquid paraffin antidesiccants in 90 days storage. The active IJs obtained from glycerin @ 1 percent storage, showed maximum efficacy against the test insect in both the isolates of H. indica (D-2 & D-6). When H. indica isolates were applied in two spray treatments with a three-day interval, the maximum mortality of Leucinodes orbonalis was seen and this was considerably comparable with spinosad 45 SC @ 72ml per acre was applied as a treatment for the management of insect pests of brinjal in field conditions. So, the native isolates of H. indica (D-2 & D-6) proved virulent and effective against brinjal shoot & fruit borer in field conditions. Hence, it was concluded from the study that H. indica isolates are environmentally safe alternate to chemical pesticides in brinjal.
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    ThesisItemOpen Access
    Effect of growing seasons on the development and pathogenicity of Meloidogyne javanica in okra (Abelmoschus esculentus)
    (CCSHAU, 2019) Deepak Kumar; Verma, K.K.
    Investigation were carried out to study the effect of different growing seasons on the development and pathogenicity of Meloidogyne javanica in okra (Abelmoschus esculentus) under screen house conditions. In development and life cycle experiments, the penetration of M. javanica was observed at initial 24 hrs of inoculation in summer and monsoon season as compared to three days of spring season. The total life cycle of M. javanica was completed in 35 days during spring season at mean temperature range between 15.4 to 33.20C and mean relative humidity 34.0 to 69.7 per cent. During summer season, it was completed in 27 days with mean temperature range of 25 to 410C and relative humidity of 39 to 67 per cent. whereas during monsoon season, M. javanica took 31 days to complete its one generation in okra crop under mean temperature range of 26 to 330C and relative humidity of 73 to 90 per cent. The experiments of pathogenicity were also carried out to study the effect of different growing seasons on the plant growth parameters as well as nematode reproduction and multiplication. With increase in inoculum levels from 10 to 10000 J2/kg soil, there was significant reduction in all growth parameters. But the inoculum level of 1000 J2/kg soil was observed pathogenic during spring and summer season while, during monsoon season, 100 J2/kg soil was found pathogenic level to okra crop. The nematode reproduction and multiplication factors was observed in increasing trend with increase in inoculum levels of nematode under all the three seasons. The reproduction factor was observed negatively correlated with increasing inoculum level of nematodes. At 10000 J2/kg soil, minimum reproduction factor was observed. The prevailing temperature during all seasons and soil moisture during monsoon season due to higher rainfall were crucial factors for development, reproduction and multiplication.