Morphological characteristics of chestnut Castanea sativa from the area of Una-Sana Canton
Una-Sana Canton (USC) has a large forest areas where chestnut Castanea sativa Mill. grows as a self-sprout tree. The aim of this paper was to determine the morphological characteristics of chestnut fruits from four self-sprout locations (Bužim, Bosanska Krupa, Cazin and Velika Kladusa), and plantation where the domestic tree is grafted with Italian Marroni. Number of fruits/kg, the useless fruit, the percentage of kernel, diameter, width, height and weight of fruits were determined. The number of fruit/kg ranged from 160-222.5, percentage of useless fruit varied between 0.88-6.7%. Percentage of kernel ranged from 78.5 to 87.3%. According to the diameter classification, width, height and weight of fruits, chestnuts fruit from USC enters the category of the smallest fruits of the Mediterranean area. Statistical significant differences (p≤0.01) in the number of fruits/kg and weight of fruits was found between locations, as well in the width of the fruit (p≤0.05), while there is no difference in the diameter and height of the fruit. For grafted chestnut, all the characteristics provided better quality.
VARIABILITY OF THE SWEET CHESTNUT (Castanea sativa Mill.) BASED ON THE MORPHOLOGICAL PROPERTIES OF THE LEAF IN NATURAL POPULATIONS OF BOSANSKA KRAJINA
UDK 582.632.2:581.45(497.6 Bosanska krajina) 
An analysis of the morphological properties of the sweet chestnut (Castanea sativa Mill.) leaves has identified the presence of an intra-population and inter-population variability of the sweet chestnut. The material has been collected from 16 subpopulations in the region of Bosanska Krajina (Cazin, Bužim, and Velika Kladuša) and amounted to 4,380 leaves of equal dimensions. Their morphological features – blade length in mm (ŠPL), blade width in mm (DPL) and petiole length in mm (DPE) – have been measured. The shape of leaf base and depth of indentations of leaf edges have been established according to the descriptor for the sweet chestnut (UPOV 1989), while the ratios have been calculated based on the known values: leaf blade length/leaf blade width (ŠPL/DPL) and leaf blade width/total leaf length (ŠPL/UDL). 
The purpose of this research is to establish intra-population and inter-population variability of the natural sweet chestnut populations in the region of Bosanska Krajina on the basis of leaf morphology.
Analysis of Macro and Micronutrients in Soils from Palestine Using Ion Exchange Membrane Technology
Ion Exchange membrane technology (IEM) is a method that allowed a single extraction process and a single subsequent measurement of different elements that are available in soil. The values of the available forms of the different macro- and micronutrients obtained by IEM extraction were compared with the values of the soluble form obtained by conventional extraction methods. In surface soil sample, the concentrations of available potassium, nitrate, phosphate, iron and boron were 37.7 mg kg–1, 17.5 mg kg–1, 3.6 mg kg–1, 171.0 μg kg–1, and 4.2 μg kg–1 respectively were greater than that of soluble forms of the same elements which were 7.0 mg kg–1, 9.2 mg kg–1, 0.4 mg kg–1, 109.0 μg kg–1, and 1.9 μg kg–1 respectively.