No abstract

ÖZET Bitkisel üretimde stres faktörleri verimde azalmaya neden olmaktadır. Bu çalışma, yemlik kullanıma uygun olduğu belirlenen yem bezelyesi genotipinin tuzluluğa toleransını saptamak amacıyla gerçekleştirilmiştir. Çalışmada farklı NaCl dozları (0, 30, 60, 90, 120, 150, 180, 210, 240, 270 ve 300 mM) uygulanmıştır. Deneme Tesadüf Parselleri Deneme desenine göre 10 tekrarlı olarak kurulmuştur. Çalışmada, çimlenme oranı, ortalama çimlenme süresi, radikula ve plumula uzunluğu, radikula ve plumula taze ağırlığı ile radikula ve plumula kuru ağırlığı incelenmiştir. Araştırmada, tuz stresi tüm parametrelerde istatistiki olarak anlamlı bir farka sebep olmuştur. Sonuç olarak çalışılan genotipin 90 mM'ın altındaki tuz dozlarına dayanıklı olduğu tespit edilmiştir.ABSTRACT Stress factors in crop production cause a decrease in crop yield. Salinity is one of the most important abiotic stress factors that decrease yield and quality. This study was conducted to determine the salinity tolerance of forage pea genotype. The salinity stress was arranged with different NaCl concentrations (0, 30, 60, 90, 120, 150, 180, 210, 240, 270 and 300 mM). The experiment was conducted as a randomized complete block design with ten replications. In the study, germination rate, mean germination time, the length of radicula and plumula, radicula fresh and dry weight, plumula fresh and dry weight were determined. Results showed that, salt stress caused significant differences in all parameters. As a result, the studied genotype was found to be resistant to salt doses below 90 mM.

The objective of this study was to assess morphological and genetic diversities of 48 forage pea landraces collected from different locations at different altitudes in Turkey. Morphological, quality, and yield features were determined for the landraces and three control cultivars in three subsequent years. Genetic diversities of the landraces and cultivars were also monitored using microsatellite (SSR) markers. Our results revealed that the features of landraces are significantly different. The hay weights and the relative feed values were found to be significantly affected by altitude, with the landraces generally showing significantly higher hay weight and relative feed values at lower altitudes (P < 0.05). At the genetic level, 32 SSR primers led to distinct placement of one of the samples into a different clade of the dendrogram, showing that it is genetically different from the other 47 samples. This genetically different landrace had the highest forage value, suggesting that it shows higher prime forage features than the cultivars and the other landraces. Moreover, altitude and generally flower color were found to be important factors affecting the genetics of the landraces, as the landraces having white flowers or collected at similar altitudes were clustered well in the dendrogram. The results of this study reveal that the morphological and genetic diversities of forage pea landraces collected from different locations at different altitudes show variations. Such information could be used to develop forage pea landraces with improved characters that can be used in hay management.

ÖZET: Bu çalışma, bazı mısır çeşitlerinin tane verimi ve verim ögelerinin belirlenmesi amacıyla 2015 yılında Giresun İli Bulancak İlçesi ekolojik koşullarında yürütülmüştür. Çalışmada bitki materyali olarak TK 6063, Calcio, Hido, Everest, Carella, Cadiz, Sagunto ve Tavascan olmak üzere toplam sekiz çeşit mısır kullanılmıştır. Çalışma tesadüf blokları deneme desenine göre üç tekerrürlü olarak kurulmuştur. Çalışmada koçan boyu 19.76-23 cm, koçan çapı 45.33-48.86 mm, koçanda sıra sayısı 14.8-18.13 adet, sırada tane sayısı 32.73-37.4 adet, bin tane ağırlığı 184.6-249.04 g, tane verimi 655-975 kg da -1 arasında değişmiştir. Çeşitler arasında koçan boyu, koçanda sıra sayısı, bin tane ağırlığı ve tane verimi bakımından istatistiksel olarak önemli farklar elde edilirken, koçan çapı ve sırada tane sayısı bakımından istatistiki açıdan fark bulunmamıştır. En fazla dekara tane verimi Tavascan (975 kg), Carella (900kg), TK 6063 (881 kg), Sagunto (839 kg), Cadiz (826 kg) ve Everest (801 kg) çeşitlerinden alınmıştır.Anahtar Kelimeler: Mısır, tane verimi, verim ögeleri ABSTRACT: This study was carried out in order to determine the grain yield and yield components of some maize cultivars under Giresun province Bulancak district ecological conditions in 2015. In the study; TK6063, Calcio, Hido, Everest, Carella, Cadiz, Sagunto and Tavascan were used as eight maize cultivars as plant materials. The study was established with "Randomized Complete Block Designed" with three replications. In the study ear height varied from 19.76 to 23.00 cm, ear diameter from 45.33 to 48.86 mm, number of kernels per ear from 14.8 to 18.13 piece, ranked grain number from 32.7 to 37.4 piece, thousand grain weight from 184.6 to 249.0g, grain yield from 655 to 975 kg da -1 . In the study, statistically significant differences were found among cultivars in the ear height, number of kernels per ear, thousand grain weight and grain yield. The differences of ear diameter and ranked grain number were found as statistically insignificant. In the study, the highest grain yields were determined in the cultivars of Tavascan (975 kg), Carella (900kg), TK 6063 (881 kg), Sagunto (839 kg), Cadiz (826 kg) and Everest (801 kg) respectively.

The effect of zinc fertilizers on for some plant properties and quality characteristics on oat (Avena sativa L.