CHEN Ya-ping,ZHANG Ying-cai,JING Hong-xia,et al.The Characteristic of Photosynthesis and the Growth of Fruit of Zizyphus jujuba Mill cv.lingwuchangzao[J].Northern Horticulture,2013,37(19):1-4.
灵武长枣光合特性及果实生长发育特征
- Title:
- The Characteristic of Photosynthesis and the Growth of Fruit of Zizyphus jujuba Mill cv.lingwuchangzao
- 文章编号:
- 1001-0009(2013)19-0001-04
- Keywords:
- Zizyphus jujuba Mill cv.lingwuchangzao; photosynthesis characteristic; fruit; growth curve
- 分类号:
- Q 945；S 665.1
- 文献标志码:
- A
- 摘要:
- 以6 a生灵武长枣树为研究对象，利用CIRAS-1型光合测定仪测定了灵武长枣的光合特性及果实生长等指标，研究分析了果实生长指标的变化趋势。结果表明：灵武长枣的光合作用具有明显的变化规律，叶片净光合速率（Pn）总体呈双峰变化特征；果实的净光合速率总体较低；气孔导度（Gs）和蒸腾速率（Tr）呈现不规则的交替起伏的变化特征;叶和果实的胞间CO2浓度（Ci）变化规律各具特点；叶片中叶绿素含量呈现先上升后下降的变化趋势，花后90 d达到最大值；叶片中类胡萝卜素的含量在植物发育的整个过程中均处于较低的水平；果实发育早期叶绿素和类胡萝卜素含量较高，之后逐渐下降，类胡萝卜素的含量远低于叶绿素的含量；果实生长呈现“双S”生长曲线特征，纵径生长快于横径；果实鲜重和体积的增长速度基本相同。
- Abstract:
- Selected six-year-old Zizyphus jujuba Mill cv.lingwuchangzao as material，the characteristic of photosynthesis and the growth index of fruit were determined by photosynthesis test instrument CIRAS-1 and other methods，the characteristic of photosynthesis and the growth of fruit were studied.The results showed that the photosynthesis in lingwuchangzao showed obvious variation law，the variation trend of Pn in leaf was a bimodal curve，but the Pn in fruit was general lower，the Gs and Tr showed irregular and alternate ups and downs variation characteristics，the changed laws of Ci in leaf and fruit were characteristic respectively.The content of chlorophyll in leaf increased gradually and then decreased，the peaks of chlorophyll content occurred at 90 days after blossom，but the content of carotenoid in leaf was at the lower level during the whole process of plant growth and development.The content peak of chlorophyll and carotenoid in fruit occurred at the early development，and then the content decreased gradually，the content of carotenoid in fruit was much less than chlorophyll.The fruit growth was formal“double S”curve.Longitudinal diameter growth was faster than transverse diameter，the growth rate of fresh weight was basically the same as volume.
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备注/Memo
第一作者简介：陈亚萍（1988-），女，硕士研究生，现主要从事植物学等研究工作。