The Effect of Different Levels of Irrigation and Potassium (K) Application on Seed Erucic Content for Different Varieties of Brassica under Field Conditions

Field experiments were laid out in randomized complete block design (RCBD) with split plot arrangements at Malakandher Research Farm Khyber Pakhtunkhwa Agricultural University Peshawar Pakistan to study the effect of different levels of irrigation and potassium on seed Erucic Acid content of Brassica. Four varieties Wester, Rainbow, Oscar and Legend were selected on the basis of their good response to potassium application in water stress conditions.maximum erucic acid content (6.68%) was observed in treatments of 60% irrigation and minimum erucic acid content (4.67%) was observed in plants treated with 100% irrigation level.In case of potassium, maximum erucic acid content (5.66%) was noted in those treatments which received 120 kg K ha -1 and minimum erucic acid content (5.45%) when treated with 90 kg K ha -1 . I x K interaction indicated maximum erucic acid content (6.79%) in plants treated with 60% irrigation level and 60 kg K ha -1 while minimum erucic acid content (4.54%) was noted in plants treated with 60 kg K ha -1 and 100% irrigation. Keywords: Erucic Acid, Potassium, Irrigation, Stress, Brassica, Variety