ABSTRACT The present investigation was carried out during 2008 and 2009 seasons in the experimental farm belonging to El-Kanater Horticultural Research Station, Kalyubeia Governorate Egypt to study effect of some nutrient elements on tolerance beachilyfolia pear rootstock to salinity. The following measurements were recorded: vegetative growth, nutritional status and some physiological properties of Beachilyfolia pear rootstock, irrigated with saline solution at 6000 ppm with 6 SAR and high chloride level ( Cl : So4 ). Zinc at 50 ppm, Potassium at 250 ppm and Phosphorus at 250 ppm were used in this study to give more explanation about the protect against salt injury. The results revealed that, foliar spray treatments caused a significant increase of some growth measurements (stem height, root length, number of branches & leaves, leaf area, stem diameter and fresh & dry weights of plant organs), leaf photosynthetic pigments content (chlorophyll A, B and carotenoids), leaf mineral content (N, P, K, Na, Fe Mn and Zn), physiological properties (leaf succulence grade, leaf water potential and leaf relative turgidity) of beachilyfolia pear rootstock transplants during 2008 and 2009 consecutive seasons. On the contrary, leaf sodium and proline contents and leaf osmotic pressure took the other way around during the study. |
