Aim of this study was to select the genotypes with good morphological-phenological characteristics from the population of almonds in Herzegovina. The recording and studying of 27 autochthonous almond genotypes was carried out, and three genotypes were selected and analysed using method of positive individual selection. The study comprised observation of blossom and ripening phenophases, as well as its morphological and pomological characteristics. Genotype II was highlighted with its semi-soft shell and high degree of yield of kernel (54,41%), and it has late blossom. Genotype III has convenient blossom period.
: Biotic stress caused by pests on citrus trees has become a major problem for ecologists around the world, hence the need to develop ecological approaches to sur-mount this stress. To evaluate the e ff ectiveness of diverse control methods on the pest Panonychus citri and its predators, Euseius stipulatus , Phytoseiulus persimilis , and Typhlodromus sp. Di ff erent treatments were applied in orchards planted by Citrus clementina in the Gharb area of Morocco (T0 = treated by water only, T1 = spirodiclofen (the molecular formula is C21H24Cl2O4). 0.5 L/ha, T2 = 5% black soap 125 L/ha, Its ingredients are: argan oil, olive oil, black olive, salt, water, vegetable potash, without chemicals. T3 = mixture of two detergents; Oni product is composed of the following ingredients (sodium C12-13 parenth sulfate, and sodium C14-17 alkyl sec sulfonate) and Tide product with the following ingredients (sodium C10-16 alkylbenzene sulfonate, propylene glycol and sodium borate). Results obtained during the follow-up period showed that the black soap, spirodiclofen, and two detergent treatments provided a decrease in the P. citri population in comparison with plot treated by water during the whole monitoring period. We found 5,044 mobile forms of P. citri in the plot treated by water only, 1,544 forms in the plot treated with spirodiclofen
A 2-year study was done to compare fruit morphological and chemical composition of three nectarine cultivars grown in south Hercegovinia conditions. A high variability among and within cultivars was found and significant differences were observed among them in all properties analyzed. On the basis of evaluated data, the best fruit performance was registered in ‘Caldesi 2000’ and ‘Venus’ grown in the condition of this part of the Mediteran. This evaluation may help to select a set of nectarine cultivars with better fruit quality attributes, which in our growing conditions might be indicated in ‘Caldesi 2000’ and somewhat in ‘Venus’. The highest average of fruit width (61.18 mm) and fruit weight (148.24 g) was found in cultivar Caldesi 2000. As for friut thickness, also cultivar Caldesi 2000 had the highest value (55.39 mm). The results for the highest fruit length (60.48 mm) had Venus cultivar also fruit stone weight length, width and thickness. The contents sugars (glucose, fructose) total soluble dry matter, and total acids in fruits were found in cultivar Venus, but pH and sucrose were found in cultivar Sun Grand.
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