| 东魁与荸荠种杨梅叶片春季光合特性比较 |
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| 引用本文： | 程晓建,谷镜,张敏,王白坡. 东魁与荸荠种杨梅叶片春季光合特性比较[J]. 安徽农业大学学报, 2011, 38(1): 106-109. DOI: CNKI:34-1162/S.20110107.1519.013 |
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| 作者姓名： | 程晓建 谷镜 张敏 王白坡 |
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| 作者单位： | 浙江广播电视大学;浙江农林大学林业与生物技术学院; |
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| 基金项目： | 国家科技成果转化重点项目(2006GB2C200113); 浙江省科学技术重大项目(021102537)共同资助 |
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| 摘 要： | 春季田间条件下,以浙江省主栽品种东魁和荸荠种杨梅为试材,对其叶片光合特性、比叶重、叶绿素含量和碳水化合物含量等差异进行了比较研究。结果表明,东魁和荸荠种杨梅叶片的净光合速率日变化均为双峰型曲线,有明显的"午休"现象;东魁杨梅净光合速率、水分利用率和气孔导度的日均值显著高于荸荠种杨梅,而日平均蒸腾速率显著低于荸荠种杨梅;午间光合速率和胞间CO2浓度下降,变化趋势一致,气孔限制值升高,表明光合速率午间降低主要是受气孔限制因素影响。东魁杨梅的叶绿素含量和叶绿素a/b略低于荸荠种杨梅,但无显著差异,而荸荠种杨梅叶片的比叶重、可溶性糖、还原糖和淀粉含量都明显高于东魁杨梅,且差异显著。
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| 关 键 词： | 杨梅 光合作用 叶绿素 比叶重 可溶性糖 |
Comparison of leaf photosynthetic characteristics between two Chinese bayberry cultivars in spring season |
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| CHENG Xiao-jian,GU Jing,ZHANG Min and WANG Bai-po. Comparison of leaf photosynthetic characteristics between two Chinese bayberry cultivars in spring season[J]. Journal of Anhui Agricultural University, 2011, 38(1): 106-109. DOI: CNKI:34-1162/S.20110107.1519.013 |
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| Authors: | CHENG Xiao-jian GU Jing ZHANG Min WANG Bai-po |
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| Affiliation: | CHENG Xiao-jian1,GU Jing2,ZHANG Min2,WANG Bai-po2(1.Zhejiang Radio &Television University,Hangzhou 310012,2.School of Forestry and Biotechnology,Zhejiang Agriculture and Forestry University,Hangzhou 311300) |
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| Abstract: | Under the field conditions in spring season,diurnal changes in photosynthetic parameters,specific leaf dry weight,contents of chlorophyll and carbohydrate in leaves were compared between Dongkui and Biqi Chinese bayberry with Li-6400 photosynthetic instrument.The results showed that their diurnal changes of net photosynthetic rate(Pn) exhibited dual-peak curves because of midday depression.Pn,water use efficiency(WUE) and stomatal conductance(Gs) of Dongkui cultivar were significantly higher than those of B... |
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| Keywords: | Chinese bayberry photosynthesis chlorophyll specific leaf dry weight soluble sugar |
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