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中国农学通报

中国农学通报 ›› 2011, Vol. 27 ›› Issue (22): 229-233.

所属专题： 园艺； 农业生态

• 林学 园艺 园林 • 上一篇    下一篇

温室环境生态因子变化及其对观赏凤梨光合特性的影响

曹冬梅 张超 康黎芳 段九菊 王云山   

  • 收稿日期:2011-02-28 修回日期:2011-04-13 出版日期:2011-09-05 发布日期:2011-09-05
  • 基金资助:

    山西省观赏植物资源利用及产业化发展关键技术研究

The Change of Ecological Factors in Greenhouse and its Effect on Photosynthetic Characteristics of Decorative Pineapple

  • Received:2011-02-28 Revised:2011-04-13 Online:2011-09-05 Published:2011-09-05

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摘要：

以‘丹尼斯’凤梨为试材，研究了温室生态因子变化及其对观赏凤梨光合特性的影响，结果表明：温室中大气CO2和植株间CO2浓度日变化趋势不同，二者分别在早上7:30和下午17:30达到全天的最大值；温室内凤梨不同部位叶片光合有效辐射日变化趋势一致，以上午11:30最大，且上部叶>中部叶>下部叶；一天中，不同部位叶片光合速率最大值分别为：上部叶在上午8:30达最大值，为2.16 μmol/(m2?s)，中部叶片在上午的9:30达最大值，为2.16 μmol/(m2?s)，下部叶片在上午的11:30达最大值，为1.46 μmol/(m2?s)；不同部位叶片气孔导度日变化和蒸腾速率日变化与光合速率日变化趋势一致。总之，凤梨中部叶片的光能利用以及光合能力最强，且群体中叶片实际光合速率的大小不仅与光强的分布，而且与温室内各生态因子紧密相关。

关键词: 野罂粟, 野罂粟, 花粉介导法, 基因转化

Abstract:

The change of ecological factors in greenhouse and its effect on Photosynthetic characteristics of decorative 'Dennis' pineapple were studied. The results showed: Diurnal variations of atmospheric CO2 in greenhouse and the CO2 concentration between plants of greenhouse are different, Which reach the maximum in the morning 7:30 and afternoon 17:30 respectively; The diurnal change of photosynthetically active radiation of different position leaves in greenhouse Pineapple is the same, maximum appear at 11:30 in the morning, and the upper leaves>middle leaves>lower leaves; the maximum photosynthetic rate of different position leaves followed: which of upper leaves is 2.16 μmol/(m2?s) at 8:30 in the morning, which of middle leaves is 2.16 μmol/(m2?s) at 9:30 in the morning, which of lower leaves is 1.46 μmol/(m2?s) at 11:30 in the morning. The diurnal change of stomatal conductance and transpiration rate of the different position leaves are the same trend as the photosynthetic rate. In short, solar energy utilization and photosynthetic capacity of middle leaves of pineapple are the strongest, and the actual photosynthetic rate of the group leaves is not only in connection with the distribution of light intensity, but also with the ecological factors in the greenhouse.