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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: Entomology × Author: Sandeep Kumar × End date: 2019 × Start date: 2012 × Thesis Type: M.Sc ×
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    ThesisItemOpen Access
    Studies on the biology and population dynamics of rice whitebacked planthopper, sogatella furcifera (Horvath) on rice
    (CCSHAU, 2013) Sandeep Kumar; Lakhai Ram
    Studies on biology and population dynamics of whitebacked planthopper (WBPH) were carried out in the screen house and field at CCS Haryana Agricultural University, rice research station, Kaul (Kaithal) during Kharif 2011 and 2012. The eggs were laid in cluster of 5-30 eggs. The maximum (71.96%) eggs were laid in leaf sheath of plant followed by midrib (16.66%) and stem (11.36%). The eggs hatched in 5-9 days with an average of 8.6±0.24 days. The hatchability was 84.21 per cent. Nymph passed through five instars to became an adult. Mean duration of 1st, 2nd, 3rd, 4th, and 5th instars were 2.05±0.05, 2.30±0.12, 2.60±0.11, 2.70±0.10 and 2.95±0.11 days with a range 2-3, 2-4, 2-3, 2-3 and 2-4 days, respectively. The total nymphal period was 12.6 days (range 11-14 days). On an average 89 per cent nymphs survived and became adult. The sex ratio was 1.0:0.78 (male:female). The pre-oviposition, ovipostion and post- ovipostion periods were 3.7±0.30 (2-5), 10.2±0.51 (9-13) and 2.0±0.29 (1-4) days, respectively. Longevity of males and females ranged from 11-16 (mean 14.4) and 12-19 (mean 15.9) days, respectively. On an average a female laid 132.8 (119-158) eggs during its life span. The population of WBPH was maximum during 38th SMW (4th week of September) during 2011 and 2012. A spider Lycosa spp. and mirid Cyrtorhinus lividipennis preyed on the eggs, nymphs and adults of WBPH. When WBPH population was correlated with biotic and abiotic factors, the relationship was found to be non significant.