The effect of irrigation with saline water on the nutritional status of peach seedlings.
1985
Habib, S.S. (Suez-Canal Univ., Ismaileyah (Egypt). Faculty of Agriculture) | Rawash, M.A. | El-Khoureiby, A.K. | Basal, M.A.
Irrigating peach seedlings with saline water affected their nutritional status. Nitrogen content in the leaves and roots decreased as salinity level increased while in shoots a contrary trend was observed. Phosphorus content in roots, showed no regular trend although this content in the feeder roots at the end of the season tended to decrease significantly with increasing salinity level. Potassium content in the different plant organs generally decreased through the vegetative season as well as at the end of the season. Calcium content increased significantly in the different plant parts. However at the end of the season, there was no detectable accumulation of Ca in the leaves. As regards Mg, the data showed that there was no consistant trend for this element in the different seedling organs. However, it increased in the leaves as a result of irrigation with saline water. Accumulation of such element in the leaves was noticeable in the second and the third seasons. The obtained results revealed a gradual increase in Na content in all plant parts with increasing salinity level. Also it can be seen that Na accumulation was greater in the feeder roots than in the other plant organs. Concerning C1 content the data showed that it increased significantly as salinity in the irrigation water increased. Injury symptoms appeared on the seedlings irrigated with saline water and this injury was directly related to salinity increase. Data indicate that medium and high salinity levels gave no healthy plant. The obtained data lead to conclude that seedlings of Mit-Ghamr peach are not promising to cultivate in saline soils.
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