and Tr-3080 were tested in the experiment. Important characteristics such as plant height, head diameter, 1000-seed weight, seed yield, oil content and oil yield were investigated. According to the results, statistical differences were found between the cultivars for 1000-seed weight, seed yield, oil content and oil yield at the 5% probability level. The highest seed yield per hectare (4,110.7 kg) was obtained from Pioneer-4223, while the highest oil yield per hectare (139.3 kg) was produced by C-70165. The lowest oil yield per hectare was found in Tr-3080 (610.6 kg), while the lowest seed yield per hectare was found in Tr-3080 (1,790.6 kg). The highest oil content (40.1%) was obtained from Armada and the lowest from Pioneer-4223 with 34.4%. The highest 1000-seed weight (83.7 g) was obtained from Isera and the lowest from Armada with 56.1 g. The highest plant height (249.9 cm) was obtained from C-70165 and the lowest from Tr-3080 (181.4 cm). The largest head diameter was found in Tunca (17.4 cm) and the smallest in Armada (13.9 cm). Results from this study indicate that Pioneer-4223, Pactol, Isera. C-70165, Tarsan, and Armada can be potential cultivar in terms of yield and the other important characters investigated under the irrigated conditions in Diyarbakir.

No abstract

The importance of vegetable oils and oilseeds, which have an important role in human nutrition and many branches of industry, is increasing day by day. Soybean is one of the most important industrial plants in the world. Despite having the most suitable agricultural land to cultivate soybean, Turkey meets through imports almost all of its soybean needs. The aim of this study is to determine the suitability of soybean genotypes as second crop production for Diyarbakır conditions. In this study, KA-04.03.07, KA-04.06.01, KKMA-118, KSA-26, S-02.14.11, S-03.03.7, Sa-01.08.15 advance lines and Arısoy, Blaze, SA-88 Bravo, Ataem-7, Umut-2002 and GAPSOY-16 varieties were used as materials. According to the results of the research, average grain yield of genotypes was 2,37 t/ha and highest grain yield was obtained from GAPSOY-16 (4,00 t/ha) variety, followed by S-03.03.7 line (3.66 t/ha). The lowest grain yield value was obtained from Umut-2002 (1,33 t/ha) variety. As a result of the correlation analysis, a positive and significant relationship was found between grain yield and thousand grain weight. It is concluded that GAPSOY-16 variety and S-03.03.7 line can be successfully grown as second crop in Diyarbakır province.

Çalışma farklı azot ve fosfor seviyelerinin bazı aspir çeşitlerinde taç yaprak verimi ve bazı bitkisel parametreleri üzerine etkisinin belirlenmesi amacıyla 2019-2020 yetiştirme sezonunda Diyarbakır sulu koşullarda Dicle Üniversitesi Ziraat Fakültesi deneme sahasında kışlık olarak kurulmuştur. Deneme tesadüf bloklarında bölünen bölünmüş parseller deneme desenine göre 4 tekerrürlü olarak yürütülmüş olup araştırmada materyal olarak, 2 adet aspir çeşidi (Safir, Dinçer), üç fosfor dozu (0, 3, 6 kg P2O5/da) ve dört azot dozu (0, 5, 10, 15 kg N/da) uygulanmıştır. Bitki boyu, yan dal sayısı, tabla sayısı, tabla çapı, ana sap kalınlığı ve taç verimi incelenmiştir. Elde edilen bulgular sonucunda azotlu gübre dozlarının bitki boyu, yan dal sayısı, tabla sayısı, tabla çapı, ana sap kalınlığı ve taç yaprak verimini istatistiki olarak önemli derecede olumlu etkilediği belirlenmiştir. Bitki boyu 73.76-93.24 cm, yan dal sayısı 4.36-5.53 adet/bitki, tabla sayısı 10.18-16.82 adet/bitki, tabla çapı 24.38-26.43 mm, ana sap kalınlığı 5.82-6.88 mm arasında değiştiği tespit edilmiştir. Taç yaprak verimi en yüksek 15 kg N/da dozu uygulamasından 7.06 kg/da, en düşük ise 0 kg N/da dozu uygulamasından 4.88 kg/da olarak elde edilmiştir. Uygulanan dozların artışına paralel olarak verim öğelerini de pozitif yönde arttırdığı saptanmıştır.