Vol. 8 (2) : March-April 2017 issue
Green Farming Vol. 8 (2) : 282-286 ; March-April, 2017
Evaluation of pigeonpea (Cajanus cajan L. Millsp.) genotypes for waterlogging, salinity and combined stress tolerance
SAVITA DUHANa1*, ANITA KUMARIa2, SUMAN BALAa3, NIDHI SHARMAb4 and SUNITA SHEOKANDa5
aDepartment of Botany & Plant Physiology, C.C.S. Haryana Agricultural University, Hisar - 125 004 (Haryana)
bDepartment of Horticulture College of Agriculture and Forestry at Rai Technology University, Kadanur - 561 204, Bengaluru (Karnataka)
Designation : 1,3Teaching Associate *(savitaduhan53@gmail.com), 2Assistant Plant Physiologist, 4Asstt. Professor, 5Professor
Subject : Crop Genetics and Plant Breeding
Paper No. : P-5549
Total Pages : 5
Received : 19 July 2016
Revised accepted : 25 January 2017
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Citation :
SAVITA DUHAN, ANITA KUMARI, SUMAN BALA, NIDHI SHARMA and SUNITA SHEOKAND. 2017. Evaluation of pigeonpea (Cajanus cajan L. Millsp.) genotypes for waterlogging, salinity and combined stress tolerance. Green Farming Vol. 8 (2) : 282-286 ; March-April, 2017
ABSTRACT
The present investigation was conducted to study the effect of waterlogging, salinity and combination on seed germination, fresh weight, dry weight and vigor index of pigeonpea (Cajanus cajan L. Millsp.) genotypes (ICPH-2431, PARAS, UPAS-120, H09-33) under laboratory conditions and on percent survival and chlorophyll content under screen house conditions. Seed were given waterlogging, salinity (30 mM NaCl) and combined treatment of waterlogging and salinity (30 mM NaCl) for 8 and 12 days and after treatments the seeds were placed on moist filter paper in petri plates for eight days and the observations were recorded. Observations like percent survival and chlorophyll content was taken 20 and 40 day after sowing. Waterlogging salinity and waterlogging + salinity treatments were given for 8 and 12 days and observations were taken 1 and 8 days after removal from treatments. Decline in germination percent, fresh weight, dry weight vigor index, percent survival and chlorophyll content was observed under all the treatments. Maximum decline was observed under combined treatment of waterlogging and salinity. Salinity treatment alone was found comparatively less deleterious. ICPH 2431 performed best among all the genotypes under all treatments.
Key words :
Chlorophyll content, Germination percent, Pigeonpea, Salinity, Stress tolerance, Waterlogging, Vigor index.