EFFECT OF PHOSPHORUS FERTILIZER AND WATER STRESS ON PROTEIN AND PHENOLIC CONTENTS IN COTTON (GOSSYPIUM HIRSUTUM L.)
Zafar Abbas*, Ijaz Ahmad**, Adnan Shakeel**, Muhammad Abdullah***, Muhammad Islam**, Sadiq Muhammad*, Ghulam Murtaza* and Mushtaq Ahmad**
ABSTRACT
Crop quality and production are affected by various fertilizers and water stress. In present research, the response of cotton variety CIM-496 to water stress and phosphorus fertilizer was investigated. Samples were collected after 90 days of planting. Kjeldahl method and thin layer chromatography (TLC) were used for the quantitative and qualitative analysis of total protein and phenolic compounds, respectively. Proteins were greatly affected by fertilizer treatment and water stress, but phenolic compounds remained unchanged upon fertilizer treatment. However, they were greatly affected by irrigation and water -1 stress. Crop treated with 100 kg ha P O under water stress maintained high 2 5 protein content as compared to unfertilized and no water stress treatments. However, phenolic compounds were found higher in fully irrigated plants as compared to water stress ones. Fertilizer treatments had no considerable effect on phenolic compounds.
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