Effect of Saline Irrigation Water on The Landscaping Potentials of Santolina chamaecyparissus,L, Plants

Document Type : Original Article

Authors

1 Floriculture, ornamental horticulture and landscape gardening dept. Fac. of Agric. - Elshatby - Alex. Univ. Egypt.

2 Soil and water sciences dept. Fac. of Agric. – Elsahtby-Alex. Univ. Egypt.

Abstract

The present work was carried out during the years of 2009, 2010 and 2011 at the Flower and Ornamental Plants Research Garden, Faculty of Agriculture, Alexandria University to study the effects of various levels of salinity of irrigation water (control= 0.47, 1, 2, 4, 6, 8, 10 and 12 ds/m) on the parameters that affect the landscaping potentials of Santolina chamaecyparissus,L. plants and also surveying the common landscaping uses of it in the green areas of Alexandria city.
The obtained results indicated that increasing the level of irrigation water salinity led to significant decrease of all vegetative growth parameters (plant height, plant diameter, stem diameter and number of main branches/plant) and significant reduction in the aesthetic appearance and landscaping uses of plants (growth shape and plant condition), compared with the control plants which were irrigated only with tap water.
Santolina chamaecyparissus,L plants showed tolerance to salinity of irrigation water till 8ds/m, and increasing the salinity level above 8 ds/m led to death of the plants after 6 months from starting the salinity treatments.
Furthermore, surveying the uses of the plant in the landscaping of green areas showed a wide range of uses i.e. in separate beds, on sloped areas, for edging and shaping beds, drawing and writing on lawns and as herbaceous borders.
It can be generally recommended that Santolina chamaecyparissus,L plants can tolerate the salinity of irrigation water up to 8 ds/m and still having high landscaping potentials and a good aesthetic appearance.

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