| 引用本文: | 乔建磊,张 冲,徐 佳,等.加气滴灌对日光温室蓝莓叶绿素荧光特性的影响[J].灌溉排水学报,2017,36(12):. |
| QIAO Jianlei,ZHANG Chong,XU Jia,et al.加气滴灌对日光温室蓝莓叶绿素荧光特性的影响[J].灌溉排水学报,2017,36(12):. |
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| 摘要: |
| 为探讨加气滴灌对蓝莓叶绿素荧光特性的影响，以日光温室内种植的3 a生蓝莓幼苗为试验材料，研究分析了不同滴灌模式下蓝莓叶片PSⅡ反应中心叶绿素荧光参数的响应机制。结果表明，采用加气滴灌可以提高蓝莓叶片PSⅡ反应中心最大荧光产量(Fm)，且不同加气频率对叶片最大荧光Fm值具有显著影响（P<0.05）；与常规滴灌相比，在试验处理初期，加气滴灌对应的植株叶片PSⅡ反应中心潜在光化学活性(Fv/F0)增幅较小，但随着时间的推移，其差异越来越明显；加气滴灌有利于提高蓝莓叶片PSⅡ光能捕获效率(Fv′/Fm′)，同时提高了叶片实际光化学效率(Yield)和光化学猝灭系数(qP)，且加气频率不同，叶片PSⅡ电子传递活性表现出较大的差异。加气处理对蓝莓叶片非光化学猝灭系数(NPQ)的影响较小，在整个试验期间均无显著差异。此外，根系活力分析结果表明，通过加气处理可以改善蓝莓根系生长环境，促进根系对养分的吸收。 |
| 关键词: 蓝莓； 日光温室； 滴灌； 叶绿素； 荧光特性 |
| DOI：10.13522/j.cnki.ggps.2017.12.003 |
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| The Effects of Aeration Irrigation on Chlorophyll Fluorescence in Blueberry Cultivated in Greenhouse |
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QIAO Jianlei, ZHANG Chong, XU Jia, WANG Chenghan, ZHAO Zhenying, XIAO Yingkui
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College of Horticulture, Jilin Agricultural University, Changchun 130118, China;College of Biological and Agricultural Engineering, Jilin University, Changchun 130025, China
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| Abstract: |
| We took a three-year old blueberry as a model plant and studied the effects of aeration irrigation on chlorophyll fluorescence in the plant leaves. Irrigation with different aeration frequencies were examined and the response of the chlorophyll fluorescence parameters were analyzed and compared with those under conventional drip irrigation. The results showed that the maximum fluorescence yield (Fm) of PSⅡreaction center of blueberry leaves increased with aeration irrigation, and that different aeration frequencies had significant effect on the maximum fluorescence yield in the leaves. Compared with conventional drip irrigation, aeration irrigation improved the potential photochemical activity (Fv/F0) and maximal photochemical efficiency (Fv/Fm) of PSⅡreaction center. Although the potential photochemical activity increased slightly in the early stage under aeration irrigation, the difference became increasingly noticeable as plant grew. Aeration irrigation also improved the light capture efficiency (Fv′/Fm′), actual photochemical efficiency (Yield) and light chemical quenching coefficient (qP) of PSⅡreaction center. However, its effect on coefficient of non-photochemical quenching (NPQ) was insufficient and there was no significant difference between the aeration irrigation and conventional drip irrigation (P>0.05) during the testing period. In addition, an appropriate aeration frequency could improve the environment for root growth and nutrient acquisition. |
| Key words: blueberry; sunlight greenhouse; drip irrigation; chlorophyll; fluorescence characteristics |
