Effect of Phosphorus on the Physiological Indexes of Muskmelon Seedling(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Title:: Effect of Phosphorus on the Physiological Indexes of Muskmelon Seedling

Author(s):: LIAN Hua; WANG Meng; MA Guangshu; WANG Yanhong; WANG Ruhua; SHENG Yunyan; (College of Agronomy，Heilongjiang Bayi Agricultural University，Daqing，Heilongjiang 163319)

Abstract:: In the experiment，muskmelon(‘Jinfei’)was used as experimental material，the way of substrate culture was adopted to study the effect of different dosages of phosphorus element on the physiological indexes of muskmelon seedling through measuring change laws of the chlorophyll content，nitrate nitrogen content，nitrate reductase activity，catalase activity，peroxidase activity and ascorbic acid oxidase activity.The results showed that appropriate dosage of phosphorus element (0.9-1.2 mmol/L) could significantly promote photosynthesis through enhancing chlorophyll content and nitrate nitrogen content，improving and increasing various protected enzymes activity which could provide the physiological basis for the yield formation and quality improvement at the later stage of melon.While phosphorus dosage was less than 0.6 mmol/L or higher than 1.5 mmol/L，various physiological substance content or protective enzyme activity were decreased significantly.

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Last Update: 2016-01-11