STUDIES REGARDING THE INFLUENCE OF IRRIGATION ON FRUIT YIELD AT APPLE TREES IN IARA - TURDA, TRANSYLVANIA CONDITIONS

The paper presents the results of the experiments that were carried out during 2012-2014 period, in the Iara-Turda depressionary area conditions. The research`s general objective is the study of agroproductivity at Jonagold, Florina, Generos, Idared, Jonathan, Granny Smith and Golden Delicious apple varieties, all grafted on to a semi-vigourous M106 rootstock. The influence of the irrigation and fertilization regime was studied in an polifactorial experiment that aimed the study of the interactions of three factors and the specific and cumulative effects on growth and fructification parameters of the apple tree varieties in the pedoclimatic context of the studied area. The present paper refers only to the interaction and effect of the irrigation regime in relation to the studied factors

RESEARCH ON GROWING BLUEBERRY FRUITS IN IRRIGATED CULTURES

Due to the special qualities that blueberry fruits have, both in alimentation and also for their pharmaceutical action, it is intended to expand and develop these cultures on larger areas in Romania. Researches conducted in this paper are designed to track the influence of water on the size and weight of blueberry berries in a field irrigated culture. This experimental field is located at the Tohat-Ulmeni farm, Maramureș County, consisting of 8 blocks randomized in three repetitions, thus comprising 24 plots, each plot having 10 shrubs planted on ridges. Experimental field irrigation is done by dripping in a system sustained by a water source from a well and controlled from a control panel through a pump distributing water from the main pipe through joints to the zonal pipes, from which watering is done by dripping on each ridge through nozzles situated at a 30 cm distance from each other. Weather conditions in the area during research were very hot and excessively hot, and in terms of rainfall weather was dry and excessively dry. From observations, in these heat and excessive drought, abiding by the project’s program and graduations of studied factors, we can observe that the medium diameter of blueberry berries varies between 10.63-20.8 mm for Hannah’s Choice breed and between 10.9-19.5 mm for Elliott breed; average berry width is between 8.5-16.6 for Hannah’s Choice breed and between 8.5-15.6 mm for Elliott breed and average weight of fruits is between 0.685-2.005 g for Hannah’s Choice breed and between 0.756-1.890 g for Elliott breed

RESEARCH ON INCREASING PRODUCTION IN THE BLUEBERRY IRRIGATED CULTURE COMPARED TO PHYSICAL ATTRIBUTES OF BERRIES

Blueberry fruits have high qualities both in alimentation and also for pharmaceutical action. Studies in the field conducted nationwide target promoting favorable means and methods for the expansion and development of these crops on larger areas in Romania. Research was conducted in the experiment field located at the Tohat-Ulmeni farm, Maramureș County, in 2013. The experiment field is made of 8 blocks randomized in three repetitions, with 24 plots, each of them having 10 shrubs planted on ridges. The irrigation methodology of the experiment field consists of dripping through a system supported by a water source from a well commanded from a control panel, through a pump that distributes water from the supply line, through joints, to the zonal pipes from which, through nozzles, the watering takes place by dripping on every ridge. Experimental results emphasize that the average maximum production is on shrub no. 5 from plot R3B8, Hannah’s Choice variety, with a value of 2.855 kg/shrub in basic and supplementary irrigation and fertilization conditions. The minimum average production per plot is registered also for Hannah’s Choice variety on plot R2B5, with a value of 0.865 kg/shrub, in basic irrigation and fertilization conditions. The maximum average production per plot is for Hannah’s Choice variety on plot R3B8, with a value of 2.503 kg/shrub, in basic and supplementary irrigation and fertilization conditions

Phisico-Chemical Response of Seven Irrigated and Non-Irrigated Apple Fruit Varieties to Different Storage Conditions

Apple fruits are among the most consumed fruits in the world, an increased demand of good quality fruits being observed also during the winter and spring period, therefore the storage performance of apple fruits is a very important aspect for a good crop valorization. Fruit flesh firmness, fruit sugar content and its weight loss during storage are very important factors in assessing the quality of fruits, as well as their storage performance. The irrigation regime and the storage conditions are also very important aspects to fruit growers, as they can influence the yield, the quality and also the price for fresh fruits. Therefore, the interactions of these factors are studied, in order to observe the effects they have on the evolution of the three parameters for fruit quality, during the storage period.</p