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Effects of Phosphorus on Photosynthetic Characteristics of Carya illinoensis(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2018年01
Page:
19-22
Research Field:
Publishing date:

Info

Title:
Effects of Phosphorus on Photosynthetic Characteristics of Carya illinoensis
Author(s):
JIANG Zongqing; LI Chengzhong; TANG Gengguo
Jiangsu Agri-animal Husbandry Vocational College,Taizhou,Jiangsu 225300
Keywords:
Carya illinoensis; photosynthetic characteristics; phosphorus
PACS:
-
DOI:
10.11937/bfyy.20172405
Abstract:
Pot cultivated 1-year-old Carya illinoensis seedlings were used as test materials,the changes of photosynthetic physiological indexes of Carya illinoensis were studied under the condition of different phosphorus levels,to provide fertilization reference for Carya illinoensis.The results showed that phosphorus could improve the chlorophyll content,when phosphorus deficiency and phosphorus excess in leaves,chlorophyll content decreased,leaf stomatal conductance decreased,intracellular CO2 concentration and transpiration rate were increased,while the net photosynthetic rate decreased also.Under the condition of phosphorus （P2O5) 0.5 mmol?L-1,the normal growth of Carya illinoensis seedlings could be ensured to promote photosynthesis and physiological metabolism.

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Last Update: 2018-01-11