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Comparative Study of Critical Temperature Suffering Frost of Floral Organs and Young Fruit of the Main Fruit Trees in Ningxia Province(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2015年07
Page:
9-13
Research Field:
Publishing date:

Info

Title:
Comparative Study of Critical Temperature Suffering Frost of Floral Organs and Young Fruit of the Main Fruit Trees in Ningxia Province
Author(s):
WANG Jing1; 2; ZHANG Xiao-yu1; 2; YANG Yang3; LI Hong-ying1; 2; WEI Jian-guo1; 2; ZHU Yong-ning1; 2; TIAN Lei1; 2
(1.Ningxia Key Lab for Meteorological Disaster Prevention and reduction，Yinchuan，Ningxia 750002；2.Ningxia Meteorological Science Institute，Yinchuan，Ningxia 750002;3.Meteorological Bureau of Huinong，Shizuishan，Ningxia 753600)
Keywords:
fruit tree; floral organs; young fruit; supercooling point; freezing point; cold resistance
PACS:
-
DOI:
10.11937/bfyy.201507003
Abstract:
The floral organs and young fruits of main fruit trees（apple，pear，apricot and plum）in Ningxia were used as test materials，and treated to comparative cold resistance and critical temperature suffering frost by finding out the super cooling point and freezing point using an artificial climate chamber.The objective of the study was to provide effective reference for frost forecast，monitoring，early-warming，as well as disaster prevention.The results showed that，for the apple and plum，the cold resistance of young fruit was weaker than the flower organs.The order of cold resistance of apple organs in bud stage full-bloom stage was ovary>flower bud.There was no significant difference between the floral organs(flower bud and overy) in plum about cold resistance，but floral organs were stronger than the leaf and young fruit.When in budding and flowering stage of apple，pear，apricot and plum met low temperature below -5.2℃，and young fruit met low temperature below -4.4℃，would suffer frost.The order of cold resistance of floral organs of plum was ‘Hongmeili’>‘Yousa’>‘Longyuan Qiuli’ and young fruit was ‘Longyuan Qiuli’>‘Hongmeili’>‘Yousa’.The order of cold resistance of young fruit of plum was ‘Longyuan Qiuli’>‘Hongmeili’>‘Yousa’.The order of cold resistance of floral organs in two culture apricot was ‘Jintaiyang’>‘Limeixing’ and young fruit was ‘Limeixing’>‘Jintaiyang’.

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Last Update: 2015-07-01