| 不同郁闭程度对苹果园光能利用和果实品质的影响 |
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| 引用本文： | 陈汝,王金政,薛晓敏,王来平.不同郁闭程度对苹果园光能利用和果实品质的影响[J].天津农业科学,2014(7):65-68. |
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| 作者姓名： | 陈汝 王金政 薛晓敏 王来平 |
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| 作者单位： | 山东省果树研究所,山东泰安271000 |
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| 基金项目： | 国家现代农业（苹果）产业技术体系专项经费（CARS-28） |
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| 摘 要： | 以不同郁闭程度红富士苹果园为试材,研究隔行去行、轻度郁闭、中度郁闭及重度郁闭对叶片光合能力和产量品质的影响,为郁闭园的合理改造提供理论依据。结果表明,不同郁闭程度影响苹果叶片参数,随着郁闭程度的加大叶面积系数呈升高的趋势,依次为重度郁闭中度郁闭轻度郁闭隔行去行。叶片面积、百叶厚、SPAD、比叶鲜质量及比叶干质量均随郁闭程度的增加而降低。净光合速率随着郁闭程度的加大而呈降低的趋势,依次为隔行去行轻度郁闭中度郁闭重度郁闭。冠层光合能力由上到下表现为:树冠上层中层下层,由外到内表现为树冠外膛中部内膛。平均单果质量、着色指数、光洁指数、可溶性固形物含量等质量指标均为隔行去行果园最好,可见隔行去行可提高树体光合效率和果品质量。
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| 关 键 词： | 苹果 郁闭园 光合 果实品质 |
Effects of Different Degree of Canopy Density on Photosynthetic Capacity and Fruit Quality in Apple Orchard |
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| CHEN Ru,WANG Jin-zheng,XUE Xiao-min,WANG Lai-ping.Effects of Different Degree of Canopy Density on Photosynthetic Capacity and Fruit Quality in Apple Orchard[J].Tianjin Agricultural Sciences,2014(7):65-68. |
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| Authors: | CHEN Ru WANG Jin-zheng XUE Xiao-min WANG Lai-ping |
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| Institution: | ( Shandong Institute of Pomology, Tai＇an, Shandong 271000, China ) |
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| Abstract: | The different degrees of canopy density in Red Fuji apple orchard was studied to explore the influence of interlaced lines, light canopy, moderate canopy and heavy canopy density on photosynthetic capacity and fruit quality. The results showed that different degree of canopy density effects apple leaves parameter, with the increasing degree of canopy, leaf area index showed an increasing trend, heavy canopy 〉 moderate canopy 〉 light canopy 〉 interlaced lines. With the degree of canopy density increasing, leaves area, hundred leaf thick , SPAD, specific leaf fresh weight and dry weight decreased. Net photosynthetic rate showed decreasing trend with increasing degrees of canopy density. Followed by the performance of interlaced lines 〉 light canopy 〉 moderate canopy 〉 heavy canopy, canopy photosynthetic capacity from top to bottom as follows： the upper 〉 middle 〉 lower, from outside to inside as follows： the outer 〉 central 〉 bore. Average weight, color index, clean index, soluble solids content and other quality indicators were the best in interlaced lines orchard, and interlaced lines could improve photosynthetic efficiency and fruit quality. |
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| Keywords: | apple airtight orchard photosynthesis fruit quality |
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