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Effect of Fertilize on Chlorophyll Contents and Photosynthetic Characteristics of ‘Nanguo’ Pear(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2012年14期
Page:
150-153
Research Field:
Publishing date:

Info

Title:
Effect of Fertilize on Chlorophyll Contents and Photosynthetic Characteristics of ‘Nanguo’ Pear
Author(s):
WANG Chun-zhi1; YU Xiao-jing1; QI Bao-li2; JIANG Ying-ying1
1.College of Land and Enviroment Science，Shenyang Agriculture University,Shenyang,Liaoning 110866;
2.Qianshan Region of Anshan City Agricultural Technology Promotion Center,Anshan,Liaoning 114041
Keywords:
photosynthetic characteristics; chlorophyll content; ‘Nanguo’ pear; fertilization
PACS:
S 661.206+.2
DOI:
-
Abstract:
The effect of different fertilizer treatments on chlorophyll contents and photosynthetic characteristics of ‘Nanguo’ pear with soilless cultivation way from the point of view of high yield fertilization were studied.The results showed that the content of chlorophyll would be to fall between the end of June，mid-July and fruit expands the period；With the increase of N，P was increased；Along with the increase of K was rising，which trend was after rising to drop，at the same time chlorophyll degradation with red leaves phenomenon.These results were agree with predecessors’ research and production of diagnosis.The chlorophyll content and net photosynthetic rate,stomatal conductance and water use efficiency changes had the same tendency，Which had opposite trend with intercellular CO2 concentration and transpiration rate.The optimum fertilizer program with chlorophyll content for the foundation and photosynthesis as the goal conditions as indicator were as follow:N:1.88 g/basin,P2O5:0.9 g/basin,：K2O:0.75 g/basin and the appropriate ratio for fertilizer 1∶0.48∶0.41.

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Last Update: 2014-09-17