Passionflower is a member of Passifloraceae family, it can be used as medicinal and ornamental plants in addition to its consumption as fruit in the world. Guava (Psidium guajava L.) fruits, which has a rich nutrient content, are consumed both fresh and processed. Passionfruit and guava plants, which can only be cultivated in temperate southern coasts in our country, have gained commercial importance because of the fruits' export potential, high medical importance and nutrient. This study was carried out to determine the effects of some bioactivator applications on the criteria of sapling growth and development of passionflower and guava plants. The experiment was conducted between 2018-2019 under greenhouse conditions. Saplings obtained from seed germination in Akdeniz University Faculty of Agriculture Research and Experiment Area were used as plant material. 3 different commercial preparations called Messenger, Crop-set and ISR-2000 were used as bioactivators. Plant height (cm), stem diameter (mm) and number of leaves (number / plant) were measured weekly, in order to determine the effect of the applications on the growth and development of saplings. At the end of the study, it was determined that the highest average plant height (10.17 cm), stem diameter (13.53 mm) were obtained in ISR-2000 application. The highest average plant height (11.93 cm), stem diameter (16.44 mm) and number of leaves (9.07 units / plant) were obtained from Messenger application in guava plant. When the results obtained are evaluated, it is recommended that ISR-2000 bioactivator can be applied in passionflower sapling cultivation and Messenger bioactivator can be applied for guava sapling cultivation.

Böğürtlen antioksidanlar ve bazı pigmentler bakımından zengin olması sebebiyle insan sağlığı açısından öneme sahip, farklı şekillerde değerlendirilebilen, ekonomik değeri yüksek bir meyve türüdür. Ticari böğürtlen yetiştiriciliğinde çeliklerinin köklendirilmesinde genellikle sentetik hormonlar kullanılmakta ve organik tarımda kullanılabilecek alternatif preparatların araştırılması önem arz etmektedir. Bu çalışma farklı mikrobiyal gübrelerin boysenberry çeliklerinin köklenmesi üzerine olan etkisinin araştırılması amacıyla, köklendirme için uygun koşulların sağlandığı sisleme serasında yürütülmüştür. Deneme deseni tesadüf parselleri deneme desenine göre dört tekrarlamalı olarak kurulmuştur. Çalışmada bitkisel materyal olarak boysenbery (Rubus loganbaccus× Rubus baileyanus Britt) çelikleri kullanılmıştır. Çalışmada ayrıca ticari firmalardan temin edilen SimBacil (%2, %4, %8), SimDerma (5 g, 10 g, 20 g), OrgaStar (%2, %4, %8) isimli preparatların 3 farklı dozu ve kontrol uygulaması yer almıştır. Deneme boyunca çeliklerde haftalık olarak yaprak sayısı (adet), gövde çapı (mm) ve sürgün uzunluğu (cm) ölçümleri kaydedilmiş, deneme sonunda ise köklenen çeliklerde kök sayısı (adet), kök uzunluğu (cm), ve kök ağırlığı (g) ölçümleri belirlenmiştir. Elde edilen sonuçlar değerlendirildiğinde, mikrobiyal gübrelerin çeliklerinin köklenmesi üzerine kontrol uygulamasına göre önemli düzeyde etki ettiği tayin edilmiştir. Deneme neticesinde, en yüksek ortalama kök uzunluğu 19.47 cm ile %8 SimBacil uygulamasında, kök ağırlığı 18.42 g ile %4 OrgaStar uygulamasında, kök sayısı ise 16.00 ile 20 g SimDerma uygulamasında belirlenmiştir. Çalışma neticesinde organik sertifikalı gübrelerin böğürtlen çeliklerinin köklendirilmesinde kullanılabileceği önerilmektedir.

The aim of this study was to investigate the effect of mycorrhiza application on the vegetative development of blackberry cuttings grown under different irrigation regimens. The research was conducted between March-June 2019 in Akdeniz University, Faculty of Agriculture, Research and Application Area. Glomus etunicatium, obtained from Çukurova University Soil and Plant Nutrition Department was used as mycorrhizal fungal material and four different irrigation levels (40%, 60%, 80%, 100%) were applied in the experiment. In order to investigate the effects of the applications on the morphological properties of blackberry cuttings, shoot diameter, plant length, number of leaves and relationship of these variables with each other and flowering dates were determined. When the results were evaluated, it was determined that mycorrhiza application had a positive effect on the vegetative development of the plants. Significant differences were determined between the effects of different irrigation levels on the morphological development of plants. The highest average shoot length (62.08 cm), stem diameter (8.37 mm) and number of leaves (16.28 number/plant) were obtained from the S100 application, where full irrigations were performed. However, there was no statistically significant difference between S80 and S100 subjects in terms of shoot length and stem diameter, and S60, S80 and S100 subjects in terms of number of leaves.

Drought is an important factor seriously affects agricultural production worldwide. Agricultural practices that can increase resistance to drought are gaining importance. In this study the role of nano-silicon dioxide (NaSiO2) in countering drought stress in invitro strawberry plantlets were investigated. In the experiment, the effects of PEG 6000 concentrations (0, 4, 8%) and NaSiO2 concentrations (0, 50, 100 mg L-1) on invitro strawberry plants were determined. Plantlets treated with PEG 6000 showed reduced vegetative growth parameters, but this decrease was reduced with NaSiO2 application. NaSiO2 at 50 mg L−1 induced the maximum shoot and root fresh weight (1.20 g, 1.24 g, respectively) and length (40.09 mm, 34.26 mm, respectively), leaves number (16.67 pieces/plant) and SPAD index 53.57 among 4% and 8% PEG applications. When the SOD and CAT activities were examined, the results showed that application of NaSiO2 enhancement drought stress tolerance by promoted certain antioxidant response by increasing SOD and catalase (CAT) activities under drought stress. According to the results NaSiO2, limited the devastating impact of drought stress and markedly enhanced all the examined parameters.