Studies on the Effects of Different Crop Loads on Yield and Quality in Round Seedless Cultivar ( Vitis vinifera L.)

摘要

The effects of three different crop load (45, 75 and 105 bud vinestock ^-1) to yield and quality components on table grapes, raisins seedless and vines were investigation on grafted and ungrafted seedless vineyard. Trials were conducted on Round seedless variety in Manisa. In the grafted vineyard, the yield increases paralelly to the crop load. A yield difference of 116% between minimum and maximum crop loads occurred in table grapes. However, total soluble solids (TSS) and the number of defective clusters reduced at the ratio of 6.3 and 30.1%. Output of raisins (31.1%) increased. Also, number of dormant buds increased paralelly to crop loads (46.2%). In the ungrafted vineyard, a yield difference of 96 % between minimum and maximum crop loads occurred in table grapes. However, TSS reduced at the ratio of 8.7 % the number of defective cluster increased at the ratio of 81.8 %. Raisins yield (45.1%) increased paralelly to crop loads, on the contrary to productivity (4.1 %). Such as, number of dormant buds increased paralelly to crop loads (72.6%).