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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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2012 - 20182
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Subject: Nematology × Author: Matcha, Udaya Kumar × Start date: 2008 × Type: Thesis ×
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    ThesisItemOpen Access
    Studies on rice root-knot nematode, meloidogyne graminicola golden and birchfield, 1965 with emphasis on its management in rice nursery
    (CCSHAU, 2018) Matcha, Udaya Kumar; Kanwar, R.S.
    Survey of rice nurseries for M. graminicola in Ambala, Kaithal, Karnal, Kurukshetra, Panchkula and Yamunanagar districts of Haryana showed that 55.0% samples in in situ and 80.0 % samples after bioassay were infected with rice root-knot nematode. Nematode infestation was more in sandy loam than loamy sand and loam soils. In the experiment on the effect of M. graminicola on absorption and translocation of nutrients from the soil, at all three levels of 0, 2, and 4 J2/g soil, maximum plant growth parameters were observed in the treatment with all nutrients (shoot weight 2.4 g, root weight 2.2 g and shoot length 21.9 cm) and minimum in treatment where no nutrient was applied (shoot weight 1.3 g, root weight 1.0 g and shoot length 15.1 cm). Nematode population per plant was more (2650.0) in treatment where no nutrients were applied and minimum in potassium treatment (1895.6). The nutrient content of N, P, K, Zn, Fe and Cu were more in soil, in their respective treatments where the individual nutrients were applied alone. The data on uptake of nutrients in rice seedlings revealed the maximum uptake of nutrients (N 23.0%, P 12.7 %, K 19.4 %, Zn 14.3 ppm, Fe 20.5 ppm, and Cu 6.0 ppm) in rice seedlings was recorded in control (0 J2/g soil). Among the treatments maximum nutrients uptake was observed in treatment where all nutrients were applied in soil (N 15.1 %, P 11.7 %, K 14.9 %, Zn 13.6 ppm, Fe 21.0 ppm and Cu 4.1 ppm). Amount of nutrients was more in soil at 4 J2/g soil (N 151.5 mg, P 33.7 mg, K 125.2 mg, Zn 37.5 ppm, Fe 78.2 ppm, and Cu 20.4 ppm per kg soil) than 2J2/g soil (N 140.0 mg, P 32.9 mg, K 123.7 mg, Zn 31.5 ppm, Fe 74.5 ppm, and Cu 19.4 ppm per kg soil). Among five bacterial isolates evaluated for nematoxicity, Bacillus strain (RKB-91) showed best results on nematode mortality as well as in inhibiting egg hatching at S/2 concentration in both cell cultures and cell free culture filterates. This strain also suppressed the nematode population as well as promoted plant growth. Among neem, cabbage and cauliflower, neem showed best results in terms of nematode mortality at 100 % concentration and > 50% hatching inhibition at 1:10 dilution. It reduced the nematode population and improved plant growth in pots. In vitro results on synthetic chemicals showed that the Coumarin carbamate series, Coumarin I and Coumarin III gave > 50% on mortality of nematode as well as hatching supression at 1000 and 500 ppm concentration. In planta study revealed that Coumarin carbamate III and Coumarin Carbamate V were more effective in reducing the nematode population and improving plant growth. Integration of different treatments for the management of M. graminicola in rice nursery showed that application of Bacillus sp. (RKB-91) + Neem extract + Coumarin carbamate III ranked first in reducing the galls as well as the nematode population and also in improving the plant growth.
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    ThesisItemOpen Access
    Studies on bacterial parasite, pasteuria penetrans (Ex thorne) sayre & starr on root-knot nematode, meloidogyne javanica (Treub) chitwood
    (CCSHAU, 2012) Matcha, Udaya Kumar; Walia, R.K.
    Influence of root exudates (REs) and cell free plant root extracts (CFPREs) of brinjal, cowpea, cluster bean, garden bean, okra and tomato was tested on the germination of Pasteuria penetrans endospores. REs and CFPRE of all the plant species did not induce the germination of P. penetrans endospore. In garden bean CFPRE, cauliflower-like colonies similar to P. penetrans were observed in endospore suspension treated with alcohol. In all the treatments rod-shaped lumps of bacteria were evident; they may be contaminants because intact endospores of P. penetrans were also present. Based on a laboratory bioassay, a statistical model was developed for the estimation of P. penetrans endospores in field soils. The regression equation y= 0.045x + 3.779 with R2 = 0.89 was calculated for M. javanica. In a green-house experiment, the role of P. penetrans in the suppression of M. javanica was estimated in naturally infested field soil. Field soil was steam sterilised or treated with formalin/fungicides. Formalin and Bavistin proved to be phytotoxic. P. penetrans alone infected 87.5% nematode females and reduced egg production by ca. ten times. Native fungal and bacteria promoted attachment of P. penetrans endospores but inhibited parasitisation of nematode females by P. penetrans in untreated soil. The development of P. penetrans under open-field and poly-house (ordinary and hi-tech) conditions was studied in winter season. Poly-houses (both ordinary and hi-tech) enabled raising the maximum temperature by 10-12 °C during day time, but there were negligible differences in the minimum temperatures. M. javanica completed it life cycle (females with egg sacs) in 60 days in hi-tech, 70 days in ordinary poly-house and 80 days in open-field conditions. P. penetrans development could not keep pace with that of nematode and it stopped at thallus stage. No mature endospores were found. P. penetrans failed to curtail the reproduction of M. javanica even in hi-tech poly-house, although infection did take place.