|Table of Contents|

Effects of Light Stress on the Second Year Growth and Development of ‘Lyuling’ Juglans regia L.(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2017年17
Page:
34-39
Research Field:
Publishing date:

Info

Title:
Effects of Light Stress on the Second Year Growth and Development of ‘Lyuling’ Juglans regia L.
Author(s):
LIANG Manman1; GONG Mengmeng1; LI Han1; ZHANG Xuemei1; 2; GUO Suping1; 2; QI Guohui1; 2
1.College of Forestry,Agricultural University of Hebei,Baoding,Hebei 071000;2.Research Center for Walnut Engineering and Technology of Hebei,Xingtai,Hebei 054000
Keywords:
light stress; walnut; yield; leaf area index
PACS:
S 664.1
DOI:
10.11937/bfyy.20170759
Abstract:
In order to study the needs and adaptability to sunlight of ‘Lyuling’ walnut,the effects of different degrees of shads (80%,50% and 30%) on the second year growth and development of ‘Lyuling’ walnut were studied.The results showed that,the elongation and proportion of dead annual branches in the 80% shading treatment were significantly higher than that of other treatments and CK,which were 75 cm and 37.5%；the elongation and proportion of dead main branches in the 80% shading treatment were significantly higher than that of other treatments and CK,which were 138 cm and 72.42%；the elongation and proportion of dead fruiting branches above main branch in the 80% shading treatment were significantly higher than that of other treatments and CK,which were 21.67 each branch and 91%；the number of dead fruiting branches in the 80% shading treatment were significantly higher than that of other treatments and CK,which was 212 each strain；the chlorophyll content of 80% shading treatment was significantly lower than that of other treatments and CK；the LAI of 80% shading treatment was significantly lower than that of other treatments and CK，which was only 2.34；the MTA of 80% shading treatment was significantly lower than that of other treatments and CK，which was only 40.23°；the DIFN of 80% shading treatment was significantly higher than that of other treatments and CK，which was 0.17；the water content of branch in the 80% shading treatment was significantly higher than that of other treatments and CK，which was 51.60%；the soluble sugar,sucrose and starch content of branch in the 80% shading treatment were significantly lower than that of other treatments and CK，which were only 4.53%,2.07% and 4.25%；the number of each plant of 80% shading treatment was significantly lower than that of other treatments and CK，which was only 37.67 each strain；the tree canopy width of 80% shading treatment was significantly lower than that of other treatments and CK,which was only 260.00 cm×323.33 cm；the annual branches elongation and diameter 80% shading treatment was significantly higher than that of other treatments and CK，which were 241.12 cm and 3.02 cm.

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Last Update: 2017-09-22