Mineral concentration levels in cultivated vegetables have received very little concern in the context of biodiversity despite the fact that most vegetables have a rich micronutrient composition. Swiss chard is an important salad crop which is high yielding and rich in minerals, vitamins and phenolic compounds. It is also extremely easy to grow. However, there is a lack of information on the genetic variability of mineral concentration of Swiss chard. Mineral composition diversity of 54 genetically diverse Swiss chard accessions, representative of all Turkish Swiss chard genetic resources, was investigated using multivariate analysis. These traits are useful in evaluating germplasm diversity in the nutritional concentration context and for use in further breeding programmes which will focus on improving mineral concentrations in Swiss chard cultivars. The results displayed significant differences among accessions and remarkably high nutrient contents. The data gathered were analyzed using principal components (PCs) and cluster analysis and revealed five major groupings. The data also observed 74.39% of total variation. The first three PCs accounted for 49.86% of the total variation in the population. Present values provided great variability among accessions and the results demonstrate that it is possible to identify genetic differentiation among Swiss chard accession for some nutritional elements. The genetic resources that exist indicate that potentially important accessions could be used as a gene source due to their high levels of K, Ca, Cu and Zn in breeding programmes.
Bu çalışma farklı dozlarda uygulanan olgunlaştırılmış çiftlik gübresinin lahana, kereviz ve pırasada verim ve bazı kalite özellikleri üzerine etkisini belirlemek amacıyla yürütülmüştür. Araştırmada sebze yetiştiriciliğinde yaygın olarak tercih edilen kontrol, 2, 4, 6 t da -1 dozlarında olmak üzere üretim alanlarına çiftlik gübresi uygulanmış ve çalışma 2013 ve 2014 üretim döneminde açık tarla koşullarında yürütülmüştür. Elde edilen sonuçlar iki deneme yılında da çiftlik gübresi uygulamalarının incelenen kalite özellikleri (renk parametreleri hariç) ve verim üzerine pozitif etkide bulunduğunu ortaya koymaktadır. Çiftlik gübresi uygulama dozunun artması ile incelenen bitki kalite parametrelerinin de arttığı gözlenen çalışmada, iki deneme yılında da en yüksek verim 4 ve 6 t da -1 dozlarında çiftlik gübresi uygulanan alanlardan elde edilmiştir.
In this experiment yield and some quality properties of 5 melon cultivars were investigated at two locations (Bornova and Cine). Statistically significant differences were found among cultivars and locations on studied yield and quality parameters. The highest yield per plant, fruit weight, number of fruit per plant, early and total yield, soluble solid content, fruit length and diameter obtained from Cine location. 50% flowering and number of days to maturity is lover in Bornova (74.20 days) than Cine (80.27 days). The highest early yield (13830 kg/ha) and total yield (53480 kg/ha) were obtained from DAP 31069 cultivar. Soluble solid content was changed among cultivar. Differences among cultivars and locations in quality properties and yield were discussed in trms of agronomic, soil and weather conditions.
