|Table of Contents|

Study on the Relationship Between Distribution of Light Intensity in the Crown and Yield Quality of ‘Korla Fragrant Pear’(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2014年16期
Page:
20-23,24
Research Field:
Publishing date:

Info

Title:
Study on the Relationship Between Distribution of Light Intensity in the Crown and Yield Quality of ‘Korla Fragrant Pear’
Author(s):
LIU Man-man; LIAO Kang; CHENG Xiao-long; LIAO Xiao-long; ZHAO Shi-rong; PENG Xiao-li; LIU Huan
Research Centre of Feature Fruits，Xinjiang Agriculture University,Urumqi,Xinjiang 830052
Keywords:
‘Korla fragrant pear’; crown; light intensity; yield; quality
PACS:
S661.2
DOI:
-
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,4591% 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.

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Last Update: 2014-09-25