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湿地松优良半同胞家系光和CO2响应曲线特征参数的变异规律(PDF)

《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

Issue:
2009年01期
Page:
54-58
Column:
研究论文
publishdate:
2009-01-30

Article Info:/Info

Title:
The variance rule of character parameters responding to light and CO2 of slash pine’s halfsib
Author(s):
TONG Fangping12XU Yanping1SONG Qingan12LONG Yingzhong12YI Aiqin12LI Gui3
1.Hunan Forestry Academy,Changsha 410004, China;2.Trees Clones Breeding Technology Key Laboratory of Hunan Province, Changsha 410004, China;3.Institute of Resource and Environment,Central South University of Forestry and Technology,Changsha 410004, Chin
Keywords:
slash pine halfsib model of nonlinear hyperbola apparent quantum yield carboxylation efficiency
Classification number :
S71843
DOI:
10.3969/j.jssn.1000-2006.2009.01.011
Document Code:
A
Abstract:
The responses to light and CO2 of slash pine’s halfsib were studied for establishing reasonable strategy in heredity improvement and planting using LI-6400 portable photosynthetic system. There were significant differences of the character parameters which responded to light and CO2 of slash pine’s halfsib. The apparent quantum yield on March to April of 1 year needle of slash pine’s halfsib and the apparent quantum yield on April of 2 year needle of slash pine’s halfsib was the highest in a year. The apparent quantum yield on May of 1 and 2 year needle of slash pine’s halfsib was the lowest. The carboxylation efficiency on May of 1 and 2 year needle of slash pine’s halfsib was the lowest while the carboxylation efficiency on August to September of 1 and 2 year needle of slash pine’s halfsib was the highest.The apparent quantum yield and carboxylation efficiency of slash pine’s halfsib were higher than that of general variety. The apparent quantum yield and carboxylation efficiency of 1 year needle were higher than that of 2 year needle’s. The main physiological mechanism of fast growth and high yield of slash pine’s halfsib was that it had highest apparent quantum yield, carboxylation efficiency, saturation point of light, saturation point of CO2 and lower compensation point of light , compensation point of CO2.

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Last Update: 2009-05-06