نوع مقاله : علمی پژوهشی
نویسندگان
1 عضو هیات علمی و مسئول نظارت و ارزشیابی موسسه تحقیقات علوم باغبانی
2 عضو هیئت علمی موسسه تحقیقات علوم باغبانی
چکیده
کلیدواژهها
عنوان مقاله [English]
نویسندگان [English]
Irrigation water salinity is one important problem in many world countries, especially in arid and semi-arid regions. In order to investigate the effects of mulch application and irrigation water salinity on the morphological traits and growth of date palm seedlings of Barhee cultivar, this experiment was carried out in factorial method based on randomized complete design with two factors of mulch and irrigation water salinity in three replications. The treatments were considered two levels of without mulch and date palm leaf mulch and three levels of irrigation water salinities of 2.5, 8 and 12 dS/m. The results showed that mulch, irrigation water salinity and the interaction of mulch and irrigation water salinity had significant effect on most plant morphological traits. Most of the morphological traits of date palm seedling were in the treatment irrigation water of 2.5 dS/m and date palm leaf mulch, which had significant difference with other treatments in most of morphological traits. The application of date palm leaf mulch improved the growth of date palm seedling in all irrigation water treatments, so that date palm leaf mulch increased number of leaves, number of leaflets, trunk girth and shoot wet and dry weights 56.7%, 41.0%, 29.0%, 125.4% and 134.1%, respectively, in compared to without mulch in irrigation water of 2.5 dS/m. Also, the date palm leaf mulch reduced the negative effects of irrigation with saline waters of 8 dS/m and 12 dS/m. There wasn’t significant difference in some morphological traits, between saline water of 8 dS/m (with mulch) and irrigation water of 2.5 dS/m (without mulch) or between saline waters of 12 dS/m (with mulch) and 8 dS/m (without mulch).
کلیدواژهها [English]
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