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ColorNets: A new approach for light manipulation in fruit trees
Year:
2004
Source of publication :
Acta Horticulturae
Authors :
Cohen, Yuval
;
.
Gussakovsky, Eugene
;
.
Lurie, Susan
;
.
Shahak, Yosepha
;
.
Volume :
636
Co-Authors:
Shahak, Y., Institute of Horticulture, ARO the Volcani Center, Bet-Dagan, Israel
Gussakovsky, E.E., Institute of Horticulture, ARO the Volcani Center, Bet-Dagan, Israel
Cohen, Y., Institute of Horticulture, ARO the Volcani Center, Bet-Dagan, Israel
Lurie, S., Institute of Technology and Storage of Agricultural Products, ARO the Volcani Center, Bet-Dagan, Israel
Stern, R., Northern R and D Center (Mop-Zafon), Kiryat Shmona, Israel
Kfir, S., Northern R and D Center (Mop-Zafon), Kiryat Shmona, Israel
Naor, A., Northern R and D Center (Mop-Zafon), Kiryat Shmona, Israel
Atzmon, I., Extension Service (Shaham), Ministry of Agriculture, Bet-Dagan, Israel
Doron, I., Extension Service (Shaham), Ministry of Agriculture, Bet-Dagan, Israel
Greenblat-Avron, Y., Extension Service (Shaham), Ministry of Agriculture, Bet-Dagan, Israel
Facilitators :
From page:
609
To page:
616
(
Total pages:
8
)
Abstract:
We introduce here a new approach for improving the utilization of solar radiation by fruit trees. This approach is based on selective filtration of the light by plastic shade nets (cloths) with special optical properties that modify the quality of natural radiation. A series of colored shade nets (ColorNets) were developed to specifically modify the incident radiation (spectrum, scattering and thermal components). Depending on the pigmentation of the plastic and the knitting design, the nets provide varying mixtures of natural, unmodified light, with spectrally modified scattered light. Use of the nets aims to optimize desirable physiological responses, in addition to providing physical protection. Following the substantial effects of several ColorNets on shoot elongation, branching and flowering in ornamentals (Oren-Shamir et al., 2001), we have applied the colored netting to deciduous fruit trees. The experiments were carried out in commercial apple and peach orchards, using ColorNets with reduced shading factors (15-30%, compared with the 50-80% used in ornamentals). The first year results show positive effects on flowering, fruit-set, fruit size, colour and internal quality, in addition to non-specific reduction of water stress, superficial damage, and sunburn. This approach opens new perspectives for improved performance of fruit tree orchards under specialized protection.
Note:
Related Files :
Color shading
Fruit-set
Fruit quality
fruit size
Light quality
Malus domestica
Prunus persica
Stem water potential
Show More
Related Content
More details
DOI :
Article number:
0
Affiliations:
Database:
Scopus
Publication Type:
Conference paper
;
.
Language:
English
Editors' remarks:
ID:
29707
Last updated date:
02/03/2022 17:27
Creation date:
17/04/2018 00:49
Scientific Publication
ColorNets: A new approach for light manipulation in fruit trees
636
Shahak, Y., Institute of Horticulture, ARO the Volcani Center, Bet-Dagan, Israel
Gussakovsky, E.E., Institute of Horticulture, ARO the Volcani Center, Bet-Dagan, Israel
Cohen, Y., Institute of Horticulture, ARO the Volcani Center, Bet-Dagan, Israel
Lurie, S., Institute of Technology and Storage of Agricultural Products, ARO the Volcani Center, Bet-Dagan, Israel
Stern, R., Northern R and D Center (Mop-Zafon), Kiryat Shmona, Israel
Kfir, S., Northern R and D Center (Mop-Zafon), Kiryat Shmona, Israel
Naor, A., Northern R and D Center (Mop-Zafon), Kiryat Shmona, Israel
Atzmon, I., Extension Service (Shaham), Ministry of Agriculture, Bet-Dagan, Israel
Doron, I., Extension Service (Shaham), Ministry of Agriculture, Bet-Dagan, Israel
Greenblat-Avron, Y., Extension Service (Shaham), Ministry of Agriculture, Bet-Dagan, Israel
ColorNets: A new approach for light manipulation in fruit trees
We introduce here a new approach for improving the utilization of solar radiation by fruit trees. This approach is based on selective filtration of the light by plastic shade nets (cloths) with special optical properties that modify the quality of natural radiation. A series of colored shade nets (ColorNets) were developed to specifically modify the incident radiation (spectrum, scattering and thermal components). Depending on the pigmentation of the plastic and the knitting design, the nets provide varying mixtures of natural, unmodified light, with spectrally modified scattered light. Use of the nets aims to optimize desirable physiological responses, in addition to providing physical protection. Following the substantial effects of several ColorNets on shoot elongation, branching and flowering in ornamentals (Oren-Shamir et al., 2001), we have applied the colored netting to deciduous fruit trees. The experiments were carried out in commercial apple and peach orchards, using ColorNets with reduced shading factors (15-30%, compared with the 50-80% used in ornamentals). The first year results show positive effects on flowering, fruit-set, fruit size, colour and internal quality, in addition to non-specific reduction of water stress, superficial damage, and sunburn. This approach opens new perspectives for improved performance of fruit tree orchards under specialized protection.
Scientific Publication
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