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pH dominates Leucadendron 'Safari Sunset' growth
Year:
2000
Source of publication :
HortScience
Authors :
Ackerman, Alexander
;
.
Ben-Jaacov, Jaacov
;
.
Ganmore-Neumann, Ruth
;
.
Mechnik, Boris
;
.
Silber, Avner
;
.
Volume :
35
Co-Authors:
Silber, A., Inst. Soil Water, and Environ. Sci., Volcani Center, P.O. Box 6, Bet Dagan 50250, Israel
Ackerman, A., Inst. Soil Water, and Environ. Sci., Volcani Center, P.O. Box 6, Bet Dagan 50250, Israel
Mitchnick, B., Inst. Soil Water, and Environ. Sci., Volcani Center, P.O. Box 6, Bet Dagan 50250, Israel
Ganmore-Neumann, R., Inst. Soil Water, and Environ. Sci., Volcani Center, P.O. Box 6, Bet Dagan 50250, Israel
Ben-Jaacov, J., Inst. Soil Water, and Environ. Sci., Volcani Center, P.O. Box 6, Bet Dagan 50250, Israel
Facilitators :
From page:
647
To page:
650
(
Total pages:
4
)
Abstract:
The objectives of the present research were to study the effects of pH, NH4:NO4 ratio, and P concentration in the nutrient solution on development of Leucadendron R. Br. 'Safari Sunset' [L. salignum Bergius x L. laureolum (Lam.) Fourc.]. The experiment was conducted in aero-hydroponic systems and involved six treatments in a nonfactorial design: two pH levels (5.5 and 7.5), two P levels (7 and 20 mg · L-1), and two NH4:NO4 ratios (60:40 and 25:75). The pH of the root environment was the most important factor controlling growth. Root cells were longer in plants grown at pH 5.5 than at pH 7.5, but width was not affected. Altering the NH4:NO4 ratio did not affect development regardless of pH. Increasing the P concentration from 7 to 20 mg · L-1 significantly decreased root fresh weight at the low pH and slightly reduced shoot growth. Nitrogen, P, K, Zn, and Mn concentrations were higher, while that of Fe was lower in plants grown at low pH. Reducing the NH4:NO4 ratio did not affect N concentration but increased P and K concentrations in the shoots. Increasing the P concentration significantly raised the P content of shoot and root tissues but reduced the content of Fe, Zn, and Mn.
Note:
Related Files :
Leucadendron
Leucadendron laureolum
Leucadendron salignum
Micronutrients
NH4:NO4 ratio
Root growth
Show More
Related Content
More details
DOI :
Article number:
Affiliations:
Database:
Scopus
Publication Type:
article
;
.
Language:
English
Editors' remarks:
ID:
20124
Last updated date:
02/03/2022 17:27
Creation date:
16/04/2018 23:34
Scientific Publication
pH dominates Leucadendron 'Safari Sunset' growth
35
Silber, A., Inst. Soil Water, and Environ. Sci., Volcani Center, P.O. Box 6, Bet Dagan 50250, Israel
Ackerman, A., Inst. Soil Water, and Environ. Sci., Volcani Center, P.O. Box 6, Bet Dagan 50250, Israel
Mitchnick, B., Inst. Soil Water, and Environ. Sci., Volcani Center, P.O. Box 6, Bet Dagan 50250, Israel
Ganmore-Neumann, R., Inst. Soil Water, and Environ. Sci., Volcani Center, P.O. Box 6, Bet Dagan 50250, Israel
Ben-Jaacov, J., Inst. Soil Water, and Environ. Sci., Volcani Center, P.O. Box 6, Bet Dagan 50250, Israel
pH dominates Leucadendron 'Safari Sunset' growth
The objectives of the present research were to study the effects of pH, NH4:NO4 ratio, and P concentration in the nutrient solution on development of Leucadendron R. Br. 'Safari Sunset' [L. salignum Bergius x L. laureolum (Lam.) Fourc.]. The experiment was conducted in aero-hydroponic systems and involved six treatments in a nonfactorial design: two pH levels (5.5 and 7.5), two P levels (7 and 20 mg · L-1), and two NH4:NO4 ratios (60:40 and 25:75). The pH of the root environment was the most important factor controlling growth. Root cells were longer in plants grown at pH 5.5 than at pH 7.5, but width was not affected. Altering the NH4:NO4 ratio did not affect development regardless of pH. Increasing the P concentration from 7 to 20 mg · L-1 significantly decreased root fresh weight at the low pH and slightly reduced shoot growth. Nitrogen, P, K, Zn, and Mn concentrations were higher, while that of Fe was lower in plants grown at low pH. Reducing the NH4:NO4 ratio did not affect N concentration but increased P and K concentrations in the shoots. Increasing the P concentration significantly raised the P content of shoot and root tissues but reduced the content of Fe, Zn, and Mn.
Scientific Publication
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