In this study, the effects of two different irrigation regimes (IR100 and IR50) and three different mulch materials (grey, black, transparent and control) on the soil moisture and some pomological characteristics on strawberry (Fragaria x ananassa cv. Fortuna) were examined under Spanish type high tunnels which Turkey is the fourth producer in the world. As a result of the study, soil moisture content under the grey mulch (34.3%) in IR100 (397 mm) applications was highest during the vegetation period and it was followed by black (33.4%), transparent (27.3%) and control (23.9%) applications respectively. The control application is very close to the wilting point in IR50 (288 mm) irrigation regime and the water content increases with mulching via the highest moisture content is in grey (26.3%), black (24.9%) and transparent (23.8%). In addition to the increase in the yield of strawberries with increasing amount of irrigation water, the average fruit weight increased significantly. As well as positive effects such as weed control, soil moisture preservation, of mulching also the fruit size were significantly increased. It was determined that the best fruit sizes were obtained from plants using gray mulch, followed by black mulch which was widely used commercially. The lowest value was obtained from control parcels. The amount of water-soluble dry matter (WSDM) increased significantly with decreasing irrigation water. The mulch types used had no significant effect on WSMD, and the value varied between 7.9 and 8.2%. Even if the effect of irrigation levels on the fruit hardness is insignificant, it is determined that the increasing irrigation water has a positive effect on the hardness of the fruit. Consequently, the most effective agricultural application in different mulch and irrigation water applications is Gary IR100. However, it is important to evaluate this judgment economically in order to be offered to the producer.

The purpose of this study was to determine the optimal time to harvest and length of the harvesting period in two early-maturing Okitsu and Clausellina mandarins and two early-maturing Navelina and Newhall oranges under Güzelyurt-Turkish Republic of Northern Cyprus (TRNC) ecological conditions. Fruit weight, fruit length, rind thickness, fruit juice, brix, acid and brix/acid ratio were determined. Fruit were harvested at three different times. Okitsu and Clausellina mandarins were harvested in September, October and November; Navelina and Newhall oranges were harvested in October, November and December. Harvest date x variety interaction effect was significantly important on fruit weight, fruit height and maturity index in mandarins whereas interaction effect of harvest date and variety was significantly important on fruit weight, citric acid concentration and maturity index in orange varieties. Maturity indexes were found 4.22, 7.26 and 10.34 on September, October and December, respectively in mandarins whereas maturity indexes were determined as 6.47, 9.47 and 13.42 in oranges. Additionally, fruit size were positively affected by the increasing harvest date in mandarin and orange varieties. As a result of the findings obtained from this study, the optimum harvest date for mandarin varieties and Newhall navel as october and it was determined that the optimum harvest date Navelina navel was November under Güzelyurt ecological conditions

In this study, the fruit quality traits of varietys of Klemantin, Fremont, Nova and Robinson was determined at Centre Application and Research Subtropical Fruit of Çukurova University in three different periods. The width (mm), length (mm), weight (g), rind thickness, number of carpel, numbers of seed, total soluble solid (TSS, %), titretable acidity (TA, %), TSS/TA ratio, fruit weight, fruit index and amount of fruit juice content (%) were measured. In addition, in this study, information about maturation period of these cultivars was obtained. Regarding to the results, Nova was determined to be the biggest fruit size, Fremont was determined to be the smallest fruit size and the most flattened fruit among the mandarins. It was determined that Klemantin mandarin was matured between September and November, Nova and Robinson mandarin species were matured in November, and Fremont mandarin species was found to matures in December