LIU Man-man,LIAO Kang,CHENG Xiao-long,et al.Study on the Relationship Between Distribution of Light Intensity in the Crown and Yield Quality of ‘Korla Fragrant Pear’[J].Northern Horticulture,2014,38(16):20-23,24.
‘库尔勒香梨’冠层内光照分布与产量品质关系研究
- Title:
- Study on the Relationship Between Distribution of Light Intensity in the Crown and Yield Quality of ‘Korla Fragrant Pear’
- 文章编号:
- 1001-0009(2014)16-0020-05
- Keywords:
- ‘Korla fragrant pear’; crown; light intensity; yield; quality
- 分类号:
- S661.2
- 文献标志码:
- A
- 摘要:
- 以‘库尔勒香梨’为研究对象，通过将树冠进行分格，对冠层内不同部位的光照强度、果实产量与品质进行测定，分析光照强度及产量品质差异，以期探讨‘库尔勒香梨’冠层内不同部位光照强度差异及其与果实产量和品质的关系，为树冠整形修剪提供理论依据。结果表明：树冠不同层次相对光照强度从上到下逐渐降低，从内膛到外围逐渐增大；相对光照强度小于30%的区域主要集中在树冠下部。果实主要分布在光照条件较好的1.5～3.0 m冠层内，果实单果重、硬度、维生素C含量、可溶性固形物含量均与相对光照强度呈正相关；应用多元统计分析方法，建立了果实产量、品质与相对光照强度关系的回归方程，获得了果实产量和良好品质因素所需的相对光照强度分别是：产量72.48%、单果重62.33%、果形指数52.88%、硬度45.91%、维生素C含量52.28%、可溶性固形物含量59.53%以及可滴定酸含量66.44%；因此，冠层内的光照分布与果实的产量品质密切相关，光照强度较高的树冠中上层和外围果实产量较高、品质较好；该试验表明，调节树冠内光照均匀分布，有利于提高果实的商品率。
- Abstract:
- With ‘Korla fragrant pear’ orchard as research object,through the crown division,the light intensity in the different parts of crown and fruit yield and quality were determined,and the differences of light intensity and yield quality were analyzed,in order to study the relationship between the distribution of light intensity in the different parts of crown and yield and quality of ‘Korla fragrant pear’,and providing theoretical basis for training and pruning.The resultsshowed that the distribution of relative light intensity in the crown gradually descended from upper to lower layer,it was gradually increased from the inner bore to the periphery.Less 30% of the relative light intensity distribute mainly in the lowest layer of crown.The fruit yield distribute mainly from 1.5 m to 3.0 m height that light conditions were well in the crown.The fruit weight,firmness,the content of vitamin C and soluble solids were positively correlate to relative light intensity.The regression equations in relationships between yield and good quality factors and relative light intensity were set up and the findings were obtained,that the suitable relative light intensity were 72.48% for yield,62.33% for fruit weight,52.88%for fruit shape index,4591% for firmness,52.28% for vitamin C content,59.53% for soluble solids -content.,66.44% for titratable acid.Therefore,the distribution of light intensity in the different parts of crown and yield and quality was closely related,and the high yield and better quality fruit was upper-middle-ayer and periphery of crown that light intensity was higher.It is better to improve the fruit commodity rate,if the light was distributed evenly within the crown.
参考文献/References:
［1］张步青,刘汉云.关于影响果树光合作用因子的概述［J］.山西农业科学,2007,35(12):85-87.
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备注/Memo
第一作者简介：刘曼曼（1989-），女，新疆阿拉尔人，硕士研究生，研究方向为果树种质资源学。