No abstract

This study was carried out to determine the extend of changes in erucic acid concentration of rapeseeds which were grown in Carsamba and Bafra Plains of Central Blacksea Region. In addition to field experiments, the same experiment was conducted in the greenhouse to avoid polen transfer from other sources. The first material used was 00 type rapeseed cultivars. In order to ensure a good result, the experiment sites were selected based on the intensity of other Brassica species (B. oleracea, B. rapa, B. nigra). The harvested rape seeds was the seed material of following year. Erucic acid content was measured for seeds obtained each year. The erucic acid content for three genarations showed that it was much lower than the limits for health (0.04 %)

he GxE interaction (GEI) provides essential information for selecting and recommending cultivars in multi-environment trials. This study aimed to evaluate genotype (G) and environment (E) main effects and GxE interaction of 15 canola genotypes (10 canola lines and 5 check varieties) over 8 environments and to examine the existence of different mega environments. Canola yield performances were evaluated during 2015/16 and 2016/17 production season in three different locations (Southern Marmara, Thrace side of Marmara, and Black Sea regions) of Turkey. The trial in each location was arranged in a randomized complete block design with four replications. The seed yield data were analyzed using GGE biplot and the yield components data were analyzed using ANOVA. The agronomical traits revealed that environments, genotypes, and GEI were significant at 1 % probability for all of the characters. The variance analysis exhibited that genotypes, environments, and GEI explained 21.6, 21.7, and 25.7 % of the total sum of squares for seed yield, respectively. The GGE biplot analysis showed that the first and second principal components explained 57.3 and 18.3 % of the total variation in the data matrix, respectively. GGE biplot analysis showed that the polygon view of a biplot is an excellent way to visualize the interactions between genotypes and environments.

Urja, Top 76-6, Theis) çeşidinin bazı tarımsal ve teknolojik özelliklerinin belirlenmesi amacıyla yürütülmüştür. Deneme tesadüf blokları deneme desenine göre dört tekerrürlü olarak kurulmuş, parseller sıra arası 70 cm, sıra üzeri 20 cm olacak şekilde beş sıralı olarak düzenlenmiştir. Araştırma sonuçlarına göre; çeşitlerin ana sap çapları 22.53-28.83 mm, yeşil ot verimi dekara 10 633-16 172 kg arasında, yapraksız sap verimi dekara 9 117-13 413 kg arasında değişmiştir. Teknolojik özelliklerden, kuru madde oranı %19.1-26.1, özsu verimi, şeker verimi ve biyoetanol verimi sırasıyla 3 658-5 163 l da -1 , 394-928 kg da-1 ve 160-237 l da -1 arasında değişmiştir. Araştırma sonuçlarına göre, tatlı sorgum çeşitlerinin farklı kullanılması amaçlandığında; yeşil ot verimi, özsu verimi, şeker verimi yönünden Urja, biyoetanol verimi bakımından ise M81 E çeşidi tavsiye edilen çeşitler olmuşlardır.

No abstract