PJB-2011-356
PRE-SOWING APPLICATION OF ASCORBIC ACID AND SALICYLIC ACID TO SEED OF PUMPKIN AND SEEDLING RESPONSE TO SALT
NOMAN RAFIQUE, SYED HAMMAD RAZA, MUHAMMAD QASIM AND NAEEM IQBAL
Abstract
The effects of seed soaking with salicylic acid or ascorbic acid on pumpkin seedlings growth under saline (10 dS m-1) conditions were investigated. Seedlings fresh weight, protein contents, protease and nitrate reductase activities were significantly affected by 15 and 30 mg L-1 salicylic acid and 30 mg L-1 ascorbic acid priming treatments, under both normal and saline conditions. Priming reduced the severity of the salt stress, the amelioration was better due to 30 mg L-1 ascorbic acid or 30 mg L-1 salicylic acid treatments as these treatments showed best results on seedling growth, fresh and dry matter production under non-saline and saline environments. Application of seed priming with ascorbic acid and salicylic acid in pumpkin ameliorate the adverse effects of salt stress.
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