Ömer Sözen

Genotype x environment interaction of some dry bean (Phaseolus vulgaris L.) genotypes

Beans are grown in different environments. The most important issue in bean agriculture is to increase seed yield as expected in other plants. As well reported so far, environmental factors such as rain, heat, their timing and topography affect yield and yield quality in dry beans. So, this study was conducted in 2011-2015 in Samsun (Ambarkopru and Gelemen) and Kirsehir (Mucur and Cogun) locations in order to investigate the effects of the environmental factors on dry bean. For this aim, 20 dry bean genotypes (7 cultivars and 13 pure lines) were used as plant materials. Results showed that G5, G11 and G15 genotypes were close to ideal genotypes. When the year was considered as the environmental factor, the ideal production year was in 2013 with respect to yield and yield quality, concluding that climate changes between years affected yield parameters in dry bean genotypes.

Türkiye’nin Doğu Akdeniz Bölgesi’nde Yetiştirilen Bakla Genotiplerinin Fenolojik ve Morfolojik Özelliklerinin İncelenmesi

Bu calisma, Hatay iline bagli yerel bakla yetistiriciliginin yapildigi 10 adet ilce ile bu ilce sinirlari icinde yer alan 52 adet tarladan alinan yerel bakla genotiplerinin bazi fenolojik ve morfolojik ozelliklerini belirlemek amaciyla 2009-11 yillari arasinda Hatay ekolojik kosullarinda yurutulmustur. Calismada bitki boyu, ilk bakla yuksekligi, bitkide bakla sayisi, bakla boyu, baklada tane sayisi, yuz tane agirligi (YTA), tane verimi, ciceklenme suresi, ilk bakla baglama suresi, stoma sayisi, stoma genisligi, stoma uzunlugu, stoma indeksi, epidermal hucre sayisi gibi ozellikler belirlenmistir. Lokasyonlara gore bakla genotiplerinde bitki boyunun 178-212 cm, ilk bakla yuksekliginin 23-30 cm, bakla sayisinin 23.6-32.1 adet, baklada tane sayisinin 2.7-4.1 adet, yuz tane agirliginin 137-158 g, 236.1-313.6 kgda -1 arasinda degistigi tespit edilmistir. Sonuc olarak ekolojik faktorlerin cesitlilik konusunda ciddi etkisinin oldugu ve bitkilerin buyume ve gelismelerinde farkliliklarin oldugu tespit edilmistir. Elde edilen bu farkliliklarin islah calismalarinda kullanilabilecegi ve ozellikle dayaniklilik calismalarinda bizlere yol gosterici olabilecegi anlasilmaktadir.

Morphological Variability of Colored Dry Bean (Phaseolus vulgaris L.) Germplasm From Artvin Province

In this study, 74 villages were selected and a total of 279 samples were taken from those villages according to the progressive sampling system. Regarding the seed size and color of the materials, 400 genotypes were grouped. These genotypes were sown in Samsun. Description of the genotypes was performed according to morphologic description criteria developed by IBPGR and EU-CPVO. A total of 68 observations were performed by adding some important agronomic traits. Description data for the rest colored genotypes were mentioned in the text. Of all colored seed producing genotypes, it was determined that 54 genotypes were dwarf, 15s genotypes were semi-dwarf and 78s genotypes were climbing. To determine the morphologic variability of local bean varieties of Artvin province, the collected material was divided into two groups as white and colored seeds. 145 white seeded and 147 colored seeded genotypes were subjected to Cluster analysis and dendogrames were formed. As a result of the cluster analysis it was established that bean genotypes having colored seed formed 26 subgroups. All the data obtained shows that this material has a rich variation and could be used for both new cultivars developing as dry and fresh consumption and different breeding purpose.