Authors: Sinan ETİ, Sevgi PAYDAŞ, Ayzin B. KÜDEN, Nurettin KAŞKA, Şükriye KURNAZ, Mürüvvet ILGIN
Abstract: In this research the fertilization biologies of mid and late flowering 4 almond types (101-9, 101-13, 101-23 and 106-1) selected from different parts of Turkey and Texas cultivar were studied. For this purpose, first of all, pollen viability tests with TTC and FDA and pollen germination tests in 0 %, 5 %, 10 %, 15 % and 20 % sucrose mediums by hanging drop method were performed. On the other hand, the amount of pollen production and their morphological homogenity levels were determined. In addition, besides self and open pollinations with cross pollinations the pollen tube growth rates were investigated. In pollen viability tests 106-1 and 101-9; in pollen germinating tests 106-1 and 101-13; in the determination of pollen production 101-13, 101-23 and Texas gave the highest values. Morphological homogenities were found high in all the types and Texas cultivar. In cross pollinations, pollen tubes reached the ovules in 5 to 12 days. In self pollinations, pollen tubes couldnÕt reach the ovules and stayed in different parts of the style.
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