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פותח על ידי קלירמאש פתרונות בע"מ -
The relationship between light transmittance and canopy structure parameters of nectarine trees in chinese lean-to greenhouse
Year:
2012
Source of publication :
Acta Horticulturae
Authors :
קונג, יון
;
.
Volume :
927
Co-Authors:
Kong, Y., Beijing Key Laboratory for Agricultural Application and New Technique, College of Plant Science and Technology, Beijing University of Agriculture, Beijing 102206, China
Chen, J., Beijing Key Laboratory for Agricultural Application and New Technique, College of Plant Science and Technology, Beijing University of Agriculture, Beijing 102206, China
Yao, Y., Beijing Key Laboratory for Agricultural Application and New Technique, College of Plant Science and Technology, Beijing University of Agriculture, Beijing 102206, China
Wang, Z., Beijing Key Laboratory for Agricultural Application and New Technique, College of Plant Science and Technology, Beijing University of Agriculture, Beijing 102206, China
Guo, J., Beijing Key Laboratory for Agricultural Application and New Technique, College of Plant Science and Technology, Beijing University of Agriculture, Beijing 102206, China
Lian, S., College of Computer and Information Engineering, Beijing University of Agriculture, Beijing 102206, China
Ma, C., Key Laboratory of Agricultural Engineering in Structure and Environment, MOA, CHN Agricultural University, Beijing 100083, China
Li, B., Key Laboratory of Agricultural Engineering in Structure and Environment, MOA, CHN Agricultural University, Beijing 100083, China
Facilitators :
From page:
413
To page:
420
(
Total pages:
8
)
Abstract:
Canopy structure plays an important role in affecting canopy light environment. The canopy structure parameters (including LAI, canopy thickness, canopy openness and canopy gap characters), associated with canopy light transmittance, were observed in 5-year-old 'Ruiguang 5' nectarine trees inside Chinese lean-to greenhouse. All the canopies were divided into three regions, i.e. northern region, middle region and southern region. The results showed that during stage I of fruit growth canopy light transmittance decreased exponentially with the development of LAI. During stage III, the light transmittance of canopy was affected most strongly by canopy thickness in northern and southern region and by canopy openness in middle region. The relative light intensity decreased most rapidly before sunlight reached a canopy depth of 75 cm in southern region and of 100 cm in northern and middle region. Canopy thickness and canopy openness are the key canopy structure parameters limiting the light interception of lower canopy during stage III. It is necessary for growers to adjust the two canopy parameters by summer pruning to improve canopy light environment.
Note:
Related Files :
Canopy light environment
Canopy position
Canopy thickness
Prunus persica
Prunus persica nucipersica
עוד תגיות
תוכן קשור
More details
DOI :
Article number:
Affiliations:
Database:
סקופוס
Publication Type:
מאמר מתוך כינוס
;
.
Language:
אנגלית
Editors' remarks:
ID:
22279
Last updated date:
02/03/2022 17:27
Creation date:
16/04/2018 23:50
You may also be interested in
Scientific Publication
The relationship between light transmittance and canopy structure parameters of nectarine trees in chinese lean-to greenhouse
927
Kong, Y., Beijing Key Laboratory for Agricultural Application and New Technique, College of Plant Science and Technology, Beijing University of Agriculture, Beijing 102206, China
Chen, J., Beijing Key Laboratory for Agricultural Application and New Technique, College of Plant Science and Technology, Beijing University of Agriculture, Beijing 102206, China
Yao, Y., Beijing Key Laboratory for Agricultural Application and New Technique, College of Plant Science and Technology, Beijing University of Agriculture, Beijing 102206, China
Wang, Z., Beijing Key Laboratory for Agricultural Application and New Technique, College of Plant Science and Technology, Beijing University of Agriculture, Beijing 102206, China
Guo, J., Beijing Key Laboratory for Agricultural Application and New Technique, College of Plant Science and Technology, Beijing University of Agriculture, Beijing 102206, China
Lian, S., College of Computer and Information Engineering, Beijing University of Agriculture, Beijing 102206, China
Ma, C., Key Laboratory of Agricultural Engineering in Structure and Environment, MOA, CHN Agricultural University, Beijing 100083, China
Li, B., Key Laboratory of Agricultural Engineering in Structure and Environment, MOA, CHN Agricultural University, Beijing 100083, China
The relationship between light transmittance and canopy structure parameters of nectarine trees in chinese lean-to greenhouse
Canopy structure plays an important role in affecting canopy light environment. The canopy structure parameters (including LAI, canopy thickness, canopy openness and canopy gap characters), associated with canopy light transmittance, were observed in 5-year-old 'Ruiguang 5' nectarine trees inside Chinese lean-to greenhouse. All the canopies were divided into three regions, i.e. northern region, middle region and southern region. The results showed that during stage I of fruit growth canopy light transmittance decreased exponentially with the development of LAI. During stage III, the light transmittance of canopy was affected most strongly by canopy thickness in northern and southern region and by canopy openness in middle region. The relative light intensity decreased most rapidly before sunlight reached a canopy depth of 75 cm in southern region and of 100 cm in northern and middle region. Canopy thickness and canopy openness are the key canopy structure parameters limiting the light interception of lower canopy during stage III. It is necessary for growers to adjust the two canopy parameters by summer pruning to improve canopy light environment.
Scientific Publication
You may also be interested in