| 范妍.荔枝新品种岭丰糯的光合性能指标研究[J].中国南方果树,2011,40(4): |
| 荔枝新品种岭丰糯的光合性能指标研究 |
| Research on Photosynthesis Indicators of new litchi cultivar Lingfengnuo |
| 投稿时间：2011-05-17 修订日期：2011-06-10 |
| DOI： |
| 中文关键词: 荔枝 品种 岭丰糯 光合特性 |
| 英文关键词:Litchi Photosynthesis Indicators |
| 基金项目: |
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| 中文摘要: |
| 岭丰糯由荔枝实生变异选育而来，于2010年1月通过广东省农作物品种审定委员会审定。本试验于2008、2009年连续2年对广东省东莞市大岭山10-20年生岭丰糯荔枝光合特性进行研究，并与优质荔枝糯米糍进行比较。从光合作用速率、叶绿素荧光动力学及树体碳素营养储备的角度分析了岭丰糯高产稳产的生理基础，结果表明其开花前树体碳素营养储备水平、叶绿素含量、光合速率略高于糯米糍，但未达显著水平，其叶绿素荧光动力学参数也与糯米糍无显著差异，但其光合速率随叶绿素累积而增加的速率高于糯米糍，意味着发育中的叶片能更快完成从“库”转为“源”，因而其新叶光合能力更强，有利于高产稳产。 |
| 英文摘要: |
| Abstracts：The new litchi (Litchi chinensis Sonn.) cultivar, Lingfengnuo, was selected from seedling variations. January 2010 audited by crop varieties Committee in Guangdong Province. The test for 2 consecutive years in 2008,2009, Dongguan City, study the photosynthetic characteristics of 10-20 year Ling Fengnuo, and compare with Nuomici .The result shows Photosynthesis rate, chlorophyll fluorescence kenetics and tree carbon nutrition reserves were compared between Lingfengnuo and Nuomici, with an aim to understand the physiological basis of the high yielding traits of'Lingfengnuo .The results showed that tree carbon nutrition reserve before flowering, chlorophyll index, net photosynthetic rate of mature leaves were only slightly higher in Lingfengnuo than Nuomici.Its chlorophyll fluorescence kenetics parameters such as Fv / Fm and ФPSII had no significant difference between the two cultivars. However, the speed of net photosynthetic rate increase with increase of chlorophyll content in developing new leaves was higher in Lingfengnuo, suggesting that young leaves of Lingfengnuo changes from a sink to a source faster than Nuomici, which was favorable for high yielding. |
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