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العنوان
EFFECT OF HUMIC ACID AND SALICYLIC ACID ON THE GROWTH, NUTRITIONAL STATUS AND ORGANIC COMPOSITION OF APPLE PLANTS IN RESPONSE TO SALINITY STRESS =
المؤلف
Abd El-Mageid, Eman Mohamed El-Sayed Mohamed.
هيئة الاعداد
باحث / ايمان محمد السيد محمد عبد المجيد
مشرف / أحمد محمد عبده عيسي
مشرف / امال محمود السجيني
مشرف / هدي علي عبد المحسن خليل
الموضوع
Pomology.
تاريخ النشر
2017.
عدد الصفحات
105 p. :
اللغة
الإنجليزية
الدرجة
الدكتوراه
التخصص
الزراعية والعلوم البيولوجية (المتنوعة)
تاريخ الإجازة
1/1/2017
مكان الإجازة
جامعة الاسكندريه - كلية الزراعة - الفاكهة
الفهرس
Only 14 pages are availabe for public view

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Abstract

The present investigation was conducted during 2014 and 2015 growing seasons in order to study the effect of salinity; along with humic acid and salicylic acid amendments on growth, mineral composition and organic constituents of Anna apple plants (Malus domestica, L.) budded on seedy rootstock. One hundred and sixty-two one-year old apple plants grown in black polyethylene bags filled with sand, clay soils and horse manure were used in this study. The experimental plants were divided into 3 groups, each of 54 plants. The plants of each group received one of the following salinity treatments; 0 (tap water), 25 and 50 mM NaCl (0, 1462 & 2925 ppm NaCl). The plants of each group were again divided into 3 sub-groups, i.e., each of 18 plants. Two of these sub groups received 1000 and 2000 ppm humic acid (HA) added to the salt solution used for irrigation, while the third subgroup received the salt solution only, without any humic acid addition. The plants of each subgroup of humic acid were again divided into 3 subgroups, i.e., each of 6 plants. Two of these subgroups received 0.5 and 1 mM salicylic acid (SA) added to the salt solution used for irrigation, while the third subgroup received the salt solution only, without any salicylic acid addition. The experiment lasted after 122 and 119 days in 2014 and 2015 seasons, respectively. The experimental design was Split-Split-Plot design with 6 replicates for each of the 27 treatments (3 salinity levels  3 humic acid amendments  3 salicylic acid amendments), with one plant for each replicate. Thus, 162 apple plants (27 treatments  6 replicates) were selected in this study.