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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: Plant Physiology × Author: Manohar Lal × End date: 2015 × Start date: 2010 × Type: Thesis × Thesis Type: M.Sc ×
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    ThesisItemOpen Access
    Physiological evaluation of pigeonpea [Cajanus cajan (L.) Millsp.] genotypes for waterlogging and salinity tolerance
    (CCSHAU, 2014) Manohar Lal; Sheokand, Sunita
    Thirty pigeonpea genotypes HO6-1, HO6-12, HO3-41, HO9-27, HO9-33, HO9-34, HO9-36, HO9-38, MANAK, PARAS, ICPH 2431, ICPH 2671, ASHA, MARUTI, ICPL 87051, ICP 5028, ICPL 20096, ICPL 87091, ICPL 20241, LRG 30, ICPL 20120, MAL 9, ICPL 20238, ICPL 20237, MAL 12, SIPS 2, SGBS 6, ICP 8857, UPAS 120 and ICP 7035 were screened for waterlogging, salinity (60mM NaCl) and combined waterlogging + salinity (30mM NaCl) tolerance. All the physiological parameters such as germination, seed vigour index, plant survival, leaf senescence, chlorophyll content, chlorophyll fluorescence were adversely affected with waterlogging and salinity. The genotypes ICPH 2431, PARAS, HO9-33, HO6-1, HO6-12, HO9-36 were less affected and UPAS 120, SGBS 6, MAL-12, ICPL 20237, HO9-34, LRG 30 were more affected with waterlogging and salinity treatments. Based on these studies four genotypes were selected ICPH 2431, PARAS as relatively tolerant and UPAS 120, SGBS 6 as relatively sensitive. These four pigeonpea genotypes [ICPH 2431, PARAS (relatively tolerant) and SGBS 6, UPAS 120 (relatively sensitive)] were further evaluated for physiological and biochemical changes. Waterlogging, salinity and the combination of waterlogging and salinity had adverse effect on membranes as was evident from increased electrolyte leakage and lipid peroxidation levels. The carbohydrate metabolism was altered resulting in a decline in total soluble sugar content and an increase in reducing sugar content. A significant decline in plant biomass and yield was observed. The adverse effects were more on the sensitive genotypes SGBS 6 and UPAS 120 as compared to the relatively tolerant genotypes ICPH 2431 and PARAS. The effect of waterlogging was significantly greater than that of salinity and that of combination of both stresses was greater than either stress alone. The aerenchyma formation was also less in sensitive genotypes as compared to tolerant genotypes. The aerenchyma formation was more during waterlogging + salinity (30mM NaCl) treatment.