The production of fruits and seeds of many crops is increased when external pollination occurs. Although self pollination is a widespread biological process in cultivated grapevines, there are still some uncertainties about the consequences of cross fertilization regarding productivity and quality of grapevines. Fertilization biology of grapevines becomes an essential issue when protected cultivation in particular is considered. The present investigations were therefore performed to clarify the possible effects of different pollination treatments on the agronomic features of ‘Perle de Csaba’ and ‘Trakya İlkeren’ table grape cultivars. Before the anthesis, clusters of self-pollination treatment were enclosed within cheesecloth frames to avoid extraneous pollination. For the free pollination group, flowers of twelve similar clusters were allowed to bloom and pollinate spontaneously, while hand pollination was performed by transporting the mixture of external pollens gathered from different cultivars at bloom stage. In ‘Perle de Csaba’ cultivar, hand pollination and free pollination treatments significantly increased the overall agronomic parameters on berry set rate, berry development, cluster size, seed weight and seed size in comparison to self pollination. Treatments had similar effects in ‘Trakya İlkeren’, except for a few parameters such as cluster length, berry diameter and seed thickness. Overall results indicated that cross pollination would considerably increase the quantity and quality of table grapes when cultivated under protected conditions such as glass or greenhouses.

当外部授粉发生时，许多农作物的果实和种子的产量增加。尽管自花授粉是栽培葡萄中广泛的生物学过程，但关于杂交施肥对葡萄产量和质量的影响仍存在一些不确定性。当特别考虑保护性栽培时，葡萄的受精生物学成为必不可少的问题。因此，进行本研究以阐明不同授粉处理对'Perle de Csaba'和'Trakyaİlkeren'食用葡萄栽培品种的农学特性的可能影响。花前，将自花传粉处理的簇包裹在粗棉布框架内，以避免不必要的授粉。对于免费授粉组，十二个相似簇的花朵被允许自发开花和授粉，同时通过转移在开花阶段从不同品种收集的外部花粉的混合物进行人工授粉。在“ Perle de Csaba”品种中，与自花授粉相比，手工授粉和自由授粉处理显着提高了浆果定植率，浆果发育，簇大小，种子重量和种子大小的总体农学参数。在“ Trakyaİlkeren”中，除簇长，浆果直径和种子厚度等一些参数外，处理效果相似。总体结果表明，在玻璃或温室等有保护的条件下种植时，异花授粉将大大提高鲜食葡萄的数量和质量。人工授粉是通过在开花阶段转运从不同品种收集的外部花粉混合物来进行的。在“ Perle de Csaba”品种中，与自花授粉相比，手工授粉和自由授粉处理显着提高了浆果定植率，浆果发育，簇大小，种子重量和种子大小的总体农学参数。在“ Trakyaİlkeren”中，除簇长，浆果直径和种子厚度等一些参数外，处理效果相似。总体结果表明，在玻璃或温室等有保护的条件下种植时，异花授粉将大大提高鲜食葡萄的数量和质量。人工授粉是通过在开花阶段转运从不同品种收集的外部花粉混合物来进行的。在“ Perle de Csaba”品种中，与自花授粉相比，手工授粉和自由授粉处理显着提高了浆果定植率，浆果发育，簇大小，种子重量和种子大小的总体农学参数。在“ Trakyaİlkeren”中，除簇长，浆果直径和种子厚度等一些参数外，处理效果相似。总体结果表明，在玻璃或温室等有保护的条件下种植时，异花授粉将大大提高鲜食葡萄的数量和质量。与自花授粉相比，手工授粉和自由授粉处理显着提高了浆果定植率，浆果发育，簇大小，种子重量和种子大小的总体农学参数。在“ Trakyaİlkeren”中，除簇长，浆果直径和种子厚度等一些参数外，处理效果相似。总体结果表明，在玻璃或温室等有保护的条件下种植时，异花授粉将大大提高鲜食葡萄的数量和质量。与自花授粉相比，手工授粉和自由授粉处理显着提高了浆果定植率，浆果发育，簇大小，种子重量和种子大小的总体农学参数。在“ Trakyaİlkeren”中，除簇长，浆果直径和种子厚度等一些参数外，处理效果相似。总体结果表明，在玻璃或温室等有保护的条件下种植时，异花授粉将大大提高鲜食葡萄的数量和质量。除了一些参数，例如簇长，浆果直径和种子厚度。总体结果表明，在玻璃或温室等有保护的条件下种植时，异花授粉将大大提高鲜食葡萄的数量和质量。除了一些参数，例如簇长，浆果直径和种子厚度。总体结果表明，在玻璃或温室等有保护的条件下种植时，异花授粉将大大提高鲜食葡萄的数量和质量。