人工群落光环境对海州常山生长与观赏品质的影响

doi:10.11924/j.issn.1000-6850.casb16020082

中国农学通报 ›› 2016, Vol. 32 ›› Issue (28): 90-96.doi: 10.11924/j.issn.1000-6850.casb16020082

所属专题：园艺

人工群落光环境对海州常山生长与观赏品质的影响

刘雪丽,陈月,吴瑞宁,孙宪芝

(山东农业大学园艺科学与工程学院/作物生物学国家重点实验室,山东泰安 271018）

收稿日期:2016-02-24 修回日期:2016-09-20 接受日期:2016-04-05 出版日期:2016-10-11 发布日期:2016-10-11
通讯作者: 孙宪芝
基金资助:
山东省博士后创新项目(20120100)。

Effects of Light Environment in Artificial Community on Growth andOrnamental Quality of Clerodendron trichotomum

Liu Xueli, Chen Yue, Wu Ruining, Sun Xianzhi

(College of Horticulture Science and Engineering, Shandong Agricultural University/ State Key Laboratory of Crop Biology, Tai’an Shandong 271018)

Received:2016-02-24 Revised:2016-09-20 Accepted:2016-04-05 Online:2016-10-11 Published:2016-10-11

摘要/Abstract

摘要： 以人工栽培群落为背景，研究不同光照条件对海州常山生长特性与观赏品质的影响。利用常用的测量方法测定海州常山的生长指标和观赏品质参数，并使用TPS-2便携式光合仪测定海州常山的光合作用，观察不同处理的光合特性。且借助光学显微镜(Olympus CX-31) ×40倍下，用数码显微成像系统(Olympus DP-20)照相，用数码测距软件Motic Images Advanced 3.0标定，观察各光照条件下的气孔特性。结果表明：随着光照强度的逐渐降低，叶片有不同程度的减小，比叶面积升高；组织含水量升高，干重/鲜重下降，而叶绿素相对含量则先升高后下降，81%光照时达最大值；净光合速率、蒸腾速率、气孔导度均有较大程度的下降，胞间CO₂浓度升高；气孔大小、气孔密度均下降，气孔开度则先升高后下降，81%光照时达最大值。观赏品质也有很大不同，81%光照下始花期、小花初放期、盛花期均提前，开花时间最长，花序长度达最大值。随着光照强度的减弱，低于全光照44%后，花期明显延迟，观赏花期缩短，花序直径、单花序小花数量、总花序数量、花序长度均显著减少。因此，研究表明适当遮荫有利于促进海州常山的生长，提高其观赏品质，过度遮荫则会明显影响生长和观赏品质。

关键词: 灰色系统, 灰色系统, 水产养殖, 投入产出优化

Abstract: In artificial cultivation community, the effects of different light intensities on growth characteristics and ornamental quality of Clerodendron trichotomum were studied. The growth index and ornamental quality of Clerodendrum trichotomum were measured using common measuring methods, and the photosynthesis was tested with TPS-2 portable Photosynthetic apparatus. By optical microscope (Olympus CX-31) ×40 times, the photographs of the stomatal characteristics were taken with digital microscopic imaging system (DP-20 Olympus) camera, calibrated by digital distance software Motic Images Advanced 3.0. The results showed that with light intensity decreased, the leaf size decreased in different degrees, but the specific leaf area increased. Dry weight/ fresh weight decreased, while the relative content of chlorophyll increased first and then decreased, and reached the maximum under 81% sunlight. The net photosynthetic rate, transpiration rate and stomatal conductance decreased, but the intercellular CO₂ concentration increased. Stomatal size and stomatal density decreased, the stomatal opening increased first and then decreased, and reached the maximum under 81% sunlight. Ornamental quality was also very different: under 81% sunlight, the initial stage of floret, initial flowering stage and the full bloom stage were advanced, and the inflorescence length reached the maximum. With the decrease of light intensity to less than 44% sunlight, the flowering period was significantly delayed, and the ornamental time was shortened. The diameter of inflorescence, the floret number of single inflorescence, the total number of inflorescences and the length of inflorescence were significantly reduced. Consequently, the study illustrated that appropriate shading was conducive to promote the growth and the ornamental quality of Clerodendrum trichotomum, but adverse effects would appear if the shading exceeded a certain degree.

刘雪丽,陈月,吴瑞宁,孙宪芝. 人工群落光环境对海州常山生长与观赏品质的影响[J]. 中国农学通报, 2016, 32(28): 90-96.

Liu Xueli,Chen Yue,Wu Ruining and Sun Xianzhi. Effects of Light Environment in Artificial Community on Growth andOrnamental Quality of Clerodendron trichotomum[J]. Chinese Agricultural Science Bulletin, 2016, 32(28): 90-96.

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人工群落光环境对海州常山生长与观赏品质的影响

Effects of Light Environment in Artificial Community on Growth andOrnamental Quality of Clerodendron trichotomum

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