Articles
THE EFFECT OF WATER STRESS ON THE IRANIAN LOCAL OLIVE CULTIVARS
Article number
618_35
Pages
307 – 312
Language
English
Abstract
Study of the effect of drought and water stress on the young olive seedlings in newly established olive plantation is considered especially important.
This research was conducted over two-years, at the College of Agriculture, University of Tehran.
The effects of drought stress on plant growth indices and its relation with the physiological reactions of the young olive seedlings were studied.
Experimental design was a split plot on the basis of a completely randomized block with three replications and three observations in each plot.
In this experiment, one-year-old olive seedlings (cvs. Zard, Rohgani, Mari, Fyshomi, Dezful and Shengeh) planted in light media i.e. mixture of sand, peat and fertile soil (with ratio of 1:1:1) in plastic pots were selected and irrigated every other day for a period of 3 months before treatment. 2, 6 and 12 days irrigation were applied and the 2 days irrigation treatment was used as control.
Treatments were carried out for two months.
The result of this experiment showed a significant effect of the increase of irrigation intervals on the reduction of the leaf area, stem growth length, fresh and dry weights of branches.
The cultivars also showed significant differences in connection with some growth indices.
The interaction between irrigation regime and cultivars on the ratio of root dry weight to above ground parts of the plant became significant.
This research was conducted over two-years, at the College of Agriculture, University of Tehran.
The effects of drought stress on plant growth indices and its relation with the physiological reactions of the young olive seedlings were studied.
Experimental design was a split plot on the basis of a completely randomized block with three replications and three observations in each plot.
In this experiment, one-year-old olive seedlings (cvs. Zard, Rohgani, Mari, Fyshomi, Dezful and Shengeh) planted in light media i.e. mixture of sand, peat and fertile soil (with ratio of 1:1:1) in plastic pots were selected and irrigated every other day for a period of 3 months before treatment. 2, 6 and 12 days irrigation were applied and the 2 days irrigation treatment was used as control.
Treatments were carried out for two months.
The result of this experiment showed a significant effect of the increase of irrigation intervals on the reduction of the leaf area, stem growth length, fresh and dry weights of branches.
The cultivars also showed significant differences in connection with some growth indices.
The interaction between irrigation regime and cultivars on the ratio of root dry weight to above ground parts of the plant became significant.
Authors
A. Talaie, H. Shirzad
Keywords
drought, growth indices, leaf area, fresh weight, dry weight of branch
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