נגישות
menu      
Advanced Search
Syntax
Search...
Volcani treasures
About
Terms of use
Manage
Community:
אסיף מאגר המחקר החקלאי
Powered by ClearMash Solutions Ltd -
Response of Leucadendron 'Safari Sunset' to regulated deficit irrigation: Effects of stress timing on growth and yield quality
Year:
2007
Source of publication :
Agricultural Water Management
Authors :
Assouline, Shmuel
;
.
Silber, Avner
;
.
Volume :
87
Co-Authors:
Silber, A., Institute of Soils, Water and Environmental Sciences, Agricultural Research Organization, The Volcani Centre, Bet Dagan, 50250, Israel
Levi, M., Northern R and D, P.O. Box 90000, Rosh Pina 12100, Israel
Cohen, M., Northern R and D, P.O. Box 90000, Rosh Pina 12100, Israel
David, N., Northern R and D, P.O. Box 90000, Rosh Pina 12100, Israel
Shtaynmetz, Y., Shaham, Extension Service, Ministry of Agriculture, P.O. Box 28, Bet Dagan, 50250, Israel
Assouline, S., Institute of Soils, Water and Environmental Sciences, Agricultural Research Organization, The Volcani Centre, Bet Dagan, 50250, Israel
Facilitators :
From page:
162
To page:
170
(
Total pages:
9
)
Abstract:
Leucadendron 'Safari Sunset' is the most important cultivar in the worldwide Protea industry. The commercial product consists of long branches that terminate in a female inflorescence ("head"), surrounded by large, deep-wine-red leaves. The dimensions of the colourful head have a predominant effect on the attractiveness and price of 'Safari Sunset' in the floricultural markets. The objective of the present study was to assess the effect of regulated deficit irrigation at different growth phases, on plant growth and crop quality. The experiment included two control treatments applied throughout the growth season: non-stress irrigation and deficit irrigation (40% of non-stress irrigation). The intermittent deficit irrigation treatments included periodic water stress during the fast vegetative growth (phase I) or during the head development (phase II). In addition, short events of water stress in the middle of the growth season, followed by a water non-stress irrigation regime were tested. Water stress throughout the growth season induced significantly low vegetative growth and small heads. Intermittent water stress (both periods) impaired crop quality, mainly because of reduction of head dimensions. Short or moderate periodic water stress barely affected head dimensions or the number of marketable branches, but impaired the product by diminishing the leaf dimensions. Continuous measurements of soil-water tension or plant indicators such as stem diameter or length were found to be very useful for on-line control of plant-water status. © 2006 Elsevier B.V. All rights reserved.
Note:
Related Files :
drought
growth response
irrigation
Leucadendron
Plants
Protea
soil water potential
Stem diameter
Tensiometers
water stress
Show More
Related Content
More details
DOI :
10.1016/j.agwat.2006.06.022
Article number:
Affiliations:
Database:
Scopus
Publication Type:
article
;
.
Language:
English
Editors' remarks:
ID:
30931
Last updated date:
02/03/2022 17:27
Creation date:
17/04/2018 00:58
Scientific Publication
Response of Leucadendron 'Safari Sunset' to regulated deficit irrigation: Effects of stress timing on growth and yield quality
87
Silber, A., Institute of Soils, Water and Environmental Sciences, Agricultural Research Organization, The Volcani Centre, Bet Dagan, 50250, Israel
Levi, M., Northern R and D, P.O. Box 90000, Rosh Pina 12100, Israel
Cohen, M., Northern R and D, P.O. Box 90000, Rosh Pina 12100, Israel
David, N., Northern R and D, P.O. Box 90000, Rosh Pina 12100, Israel
Shtaynmetz, Y., Shaham, Extension Service, Ministry of Agriculture, P.O. Box 28, Bet Dagan, 50250, Israel
Assouline, S., Institute of Soils, Water and Environmental Sciences, Agricultural Research Organization, The Volcani Centre, Bet Dagan, 50250, Israel
Response of Leucadendron 'Safari Sunset' to regulated deficit irrigation: Effects of stress timing on growth and yield quality
Leucadendron 'Safari Sunset' is the most important cultivar in the worldwide Protea industry. The commercial product consists of long branches that terminate in a female inflorescence ("head"), surrounded by large, deep-wine-red leaves. The dimensions of the colourful head have a predominant effect on the attractiveness and price of 'Safari Sunset' in the floricultural markets. The objective of the present study was to assess the effect of regulated deficit irrigation at different growth phases, on plant growth and crop quality. The experiment included two control treatments applied throughout the growth season: non-stress irrigation and deficit irrigation (40% of non-stress irrigation). The intermittent deficit irrigation treatments included periodic water stress during the fast vegetative growth (phase I) or during the head development (phase II). In addition, short events of water stress in the middle of the growth season, followed by a water non-stress irrigation regime were tested. Water stress throughout the growth season induced significantly low vegetative growth and small heads. Intermittent water stress (both periods) impaired crop quality, mainly because of reduction of head dimensions. Short or moderate periodic water stress barely affected head dimensions or the number of marketable branches, but impaired the product by diminishing the leaf dimensions. Continuous measurements of soil-water tension or plant indicators such as stem diameter or length were found to be very useful for on-line control of plant-water status. © 2006 Elsevier B.V. All rights reserved.
Scientific Publication
You may also be interested in