The objective of this paper is to evaluate the yield, quality and unit production cost of broccoli grown under green manure, vermicompost and chemical fertilization. For this purpose, broccoli plants were cultivated as follows: (i) Chemical fertilization (CF), (ii) Vermicompost fertilization (V), (iii) Vermicompost fertilization (VeV) in the common vetch cultivated land as a pre-plant and (iv) Vetch (Ve) as a pre-plant. Curd yield (g plant⁻¹), SPAD, vitamin C (mg 100 g⁻¹), total phenolics (mg GAE 100 mL⁻¹), total sugar (%) and soluble solid content (SSC%) were determined. In addition, input usage levels and costs, unit product cost and gross and net profit analyzes were investigated for all treatments. The highest total curd weight was obtained from VeV treatment (1567.77 g), while the lowest mean was reached in Ve plots with 819.70 g. The highest SPAD values were detected in CF (70.20) and VeV plots (69.76) similar to yield values. The highest vitamin C and total phenolics content were detected in V plots (92.31 mg 100 g⁻¹) (1308.87 mg GAE 100 mL⁻¹). The combined effect of Ve and V increased the yield and quality of the broccoli curds. As a result of economic analysis, approximately twice the net profit difference emerged in VeV treatment compared to other treatments. It was determined that a gross profit of 68% of gross production value and net profit of 64% were obtained.

This work was conducted on the use of the RE (radicle emergence) test to estimate the seedling emergence (SE) and quality (seedling shoot weight (SSW), seedling root weight (SRW) and seedling height (SH)) of twelve hybrid cucumber seed lots with high germination (>95%) at low temperature conditions, high salt conditions and a combination of the two. The percentages of RE, which is a 2 mm radicle protrusion at 25 °C in the dark, were counted between 18 h and 32 h. The seeds were sown in peat moss in trays and kept at 15 °C (low temperature stress), or salty water was applied as 100 mM NaCl at 25 °C (salt stress) for three days, and both were applied in a combined-stress environment. Seedling emergence and quality parameters were reduced by both stress environments and their combination. SE, SSW, SRW and SH values ranged between: 91–100%, 614–844 mg, 102–143 mg, 6.8–8.8 cm at low temperature; 90–98%, 598–904 mg, 101–154 mg, 6.5–7.8 cm at salt stress; and 76–92%, 464–608 mg, 97–133 mg, 5.8–6.9 cm at their combination. The RE values with great differences seen among the lots (20–28 h) were regressed with seedling emergence and quality values. RE 24 h had the highest R² and significant values in all stress environments as R² = 0.596–0.858, p < 0.05–0.001 at low temperature; R² = 0.620–0.827, p < 0.05–0.001 with salt; and R² = 0.686–0.842, p < 0.05–0.001 with combined stresses. We concluded that RE as a vigour test can be used successfully to estimate the seedling quality of highly germinating hybrid cucumber seed lots. Use of the RE test in hybrid cucumber seeds and its influence on high-quality seedling production were discussed.

The study was conducted to test whether a vigor test of a single count of radicle emergence (RE test) would correlate with the storage potential of 10 seed lots of onion (Allium cepa L.) cultivars in artificial storage conditions. The RE test was performed by counting radicle emergence (2 mm) percentage at 80 h after germination was set up at 20 °C. Seed longevity was determined by storage at 75% relative humidity, obtained by saturated NaCl, at 35 °C over 60 days. Twelve seed samples were taken out during ageing, and seed survival curves were constructed based on normal germination percentages conducted at 20 °C for 12 days in the dark. The seed longevity criterion was P₅₀ (time for the viability to fall to 50%), which was determined through probit analysis by using survival curves. Correlation analysis showed that RE counts at 80 h during germination were highly correlated (p < 0.001) with initial seed quality, Ki (R² = 0.888) and the half-viability period, P₅₀ (R² = 0.823). Non-aged pre-storage final normal germination percentages of seed lots were also significantly related to longevity (Ki, R² = 0.808, p < 0.001, P₅₀, R² = 0.750, p <0.01), while the level of significance was lower. It can be concluded that the RE test can be used as a fast vigor test to estimate the longevity in onion seed lots.

Bu çalışma, farklı vermikompost uygulamalarının ‘Crimson Sweet’ karpuz çeşidinde (Citrullus lanatus (Thunb.) Matsum. & Nakai) bazı fiziksel ve biyokimyasal özelliklerine ait etkilerini belirlemek amacıyla, 2016 yılında Çanakkale Onsekiz Mart Üniversitesi Ziraat Fakültesi Bahçe Bitkileri Dardanos Yerleşkesi Uygulama ve Araştırma alanında yürütülmüştür. Deneme, tesadüf blokları deneme desenine göre her uygulamada 3 tekerrür olacak şekilde planlanmıştır. 300 kg/da ve 600 kg/da vermikompost uygulamalarının meyve verim ve kalite özelliklerine etkisi incelenmiştir. Vermikompost uygulanmayan parseller kontrol grubu olarak kabul edilmiştir. Sonuçlar incelendiğinde; bitki başına verim bakımından en yüksek değer 5,48 kg ile 600 kg/da vermikompost uygulamasından elde edilmiştir. En yüksek çimlenme gücü değeri ise 300 kg/da vermikompost uygulamasından elde edilen tohumlarda bulunmuştur (%93,3). İncelenen diğer parametrelerden; bitki başına meyve sayısı, SÇKM (suda çözünebilen kuru madde miktarı), pH, meyve eni, kabuk kalınlığı, yaprakta klorofil içeriği, toplam şeker miktarı, toplam fenolik bileşik miktarı ve vitamin C değerleri açısından uygulamalar arasında farklılık bulunmamıştır.