Determination of bud efficiency and effects of crop loading on yield and quality factors of some grape varieties grown in Siirt province

Bineteti, Sinciri, Tayfi of Siirt and Hönüsü, Hatun Parmağı are grape varieties of Gaziantep. Sinciri and Hatun Parmağı are the medium late ripening varieties, Bineteti variety is the late ripening and Hönüsü, Tayfi are the latest ripening grape varieties. Bineteti, Sinciri, Tayfi, Hönüsü and Hatun Parmağı are grown in Siirt. These varieties were used as material for determination of bud fruitfulness. Shoots with 10 buds were used. Single-bud cuttings were rooted in laboratory conditions and The grape clutters of on the shoot was counted for determination of fruitfulness. Six-bud shoots will provide optimum yield on Tayfi grape variety. Ten bud long prunings are recommended in the variety of Sinciri grapes. If grape cultivation of table grapes is done in Bineteti grape variety should be short pruned (3 budded), long pruning (10 budded) should be done if growing grape for grape juice. Short (3-eyed) or medium pruning (5-eyed) is recommended on Hönüsü grapes. Medium or long pruning is recommended on the Hatun Parmağı grape variety. 35, 40, 45 and 60 (control) buds were placed on Tayfi grape variety at the pruning time for the determination of pruning length. Yield and quality effects of different pruning practices (35, 40, 45 and 60 buds) were determined. 40-buds pruning is recommended for 15 years old Tayfi vineyard.