| 四川德阳市三种不同树形梨园冠层特征与品质的相关研究 |
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| 引用本文： | 赵瑾,汪志辉,刘燕,邱利娜,范娜娜,熊碧玲,蒋黎黎,江光富. 四川德阳市三种不同树形梨园冠层特征与品质的相关研究[J]. 四川农业大学学报, 2010, 28(1): 78-83 |
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| 作者姓名： | 赵瑾 汪志辉 刘燕 邱利娜 范娜娜 熊碧玲 蒋黎黎 江光富 |
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| 作者单位： | 1. 四川农业大学,园艺学院,四川,雅安,625014
2. 德阳市科技局,四川,德阳,618000 |
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| 摘 要： | 以绵竹市遵道镇棚花村的‘鲜黄’梨为试材,应用WinSCANOPY2005a冠层分析仪对Y字形、平棚形与疏散分层形3种树形的冠层结构特点、产量、品质差异及其相关性进行了比较研究。结果表明:平棚形冠层开度,平均叶倾角,冠下直射、散射及总光合光量子通量密度显著高于Y字形和疏散分层形,而叶面积系数显著低于另2种树形。3种树形冠层开度、叶面积指数与冠下光合有效光量子通量密度有显著相关性,并且不同树体间差别很大。平棚形果实单果质量、可溶性固形物、可溶性糖、糖酸比显著高于Y字形和疏散分层形,而产量、可滴定酸和石细胞含量均显著低于这2种树形。平棚形树冠不同部位果实品质最一致。冠层特征参数与产量、品质指标存在显著相关性,其中冠层开度与可溶性固形物、可溶性糖、糖酸比和单果质量呈极显著正相关,与可滴定酸呈极显著负相关。
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| 关 键 词： | 梨 冠层 树形 品质 有效光合辐射 |
Correlation Between Canopy Structure Characteristics and Fruit Quality Among Three Tree Systems of Pear Orchard in Deyang,Sichuan Province |
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| ZHAO Jin,WANG Zhi-hui,LIU Yan,QIU Li-na,FAN Na-na,XIONG Bi-ling,JIANG Li-li,JIANG Guang-fu. Correlation Between Canopy Structure Characteristics and Fruit Quality Among Three Tree Systems of Pear Orchard in Deyang,Sichuan Province[J]. Journal of Sichuan Agricultural University, 2010, 28(1): 78-83 |
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| Authors: | ZHAO Jin WANG Zhi-hui LIU Yan QIU Li-na FAN Na-na XIONG Bi-ling JIANG Li-li JIANG Guang-fu |
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| Affiliation: | ZHAO Jin1,WANG Zhi-hui1,LIU Yan1,QIU Li-na1,FAN Na-na1,XIONG Bi-ling1,JIANG Li-li1,JIANG Guang-fu2(1.College of Horticulture,Sichuan Agricultural University,Yaan 625014,Sichuan,China,2.Science , Technology Bureau of Deyang City,Deyang 618000,China) |
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| Abstract: | A comparative study was made on the canopy structure characteristics,quantity of the output and quality difference as well as their correlation among the Y-shaped system,Horizontal trellis system and Delayed-open central leader system of 'Sunhwang' pear tree with WinSCANOPY2005a for hemispherical image analysis.The results showed that canopy openness,MLA,PPFD in Horizontal trellis system were significantly higher than those in Y-shaped system and Delayed-open central leader system,but the LAI was significan... |
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| Keywords: | pear canopy tree system fruit quality PPFD |
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