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.
The objective was of the study were to examine different concentrations of hydrogen peroxide on some fruit quality parameters and yield of watermelon from individual grafted and ungrafted seedlings. The field trials were performed in four concentrations of hydrogen peroxide (H 2 O 2 + C 2 H 4 O 2 ) and in combination of phosphorus pentoxide (P 2 O 5 + K 2 O) in 2010 and 2011, consequently. In the experiment 300 ml/100 L and 400 ml/ 100 L H 2 O 2 +C 2 H 4 O 2 alone, and combination with 60 ml/100 L and 80 ml/100 L P 2 O 5 + K 2 O were used in flowering, first fruit setting and when fruit size was 10-12 cm in diameter for both years. The results revealed that combination of H 2 O 2 +C 2 H 4 O 2 and P 2 O 5 +K 2 O foliar applications improved yield significantly both per plant and total in grafted and ungrafted plants in the two years. Besides, such combinations also enriched total soluble solid content in grafted and ungrafted plants. However, those increases appeared more comparable in grafted ones. In addition, fruit thickness, titratable acidity (TA) and flesh colour (a*/b*) were considerably affected by all applications of hydrogen peroxide.
This research was conducted to determine yield, quality and some plant characteristic of some sweet corn varieties in three locations. The research was carried out in 2003 under Izmir (Bornova-Menemen) and Aydin (Cine) locations. In the experiment 10 sweet corn varieties were used. Ear weight with and without husked, ear productivity, ear length, ear diameter, number of kernels per row, number of kernels on row, TSS, dry matter, and color (L, hue, kroma) were determined. Significant differences were obtained between varieties and condition for all characteristic except number of ear per plant and ear diameter. According to the result the highest ear weight 21370 kg/ha and 20180 kg/ha obtained from GH 2547 and ACX 232 sweet corn varieties under Menemen condition. The maximum ear productivity 75.55% determined from ACX 1072 variety. TSS chanced between 14.54 and 17.82.
