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    Characterization of Some Melon Genotypes Collected from Eastern and Central Anatolia Region of Turkey
    (Int Soc Horticultural Science, 2010) Solmaz, I.; Sari, N.; Mendi, Y. Y.; Kacar, Y. A.; Kasapoglu, S.; Gursoy, I.; Suyum, K.
    Melon (Cucumis melo L.) is an important vegetable crop in Turkey with 1.749 million ton of production. Local genotypes are mainly used in production which belongs to var. inodorus. A total of 78 melon accessions were collected from Eastern and Central Anatolia regions which have valuable melon genetic resources. These accessions were characterized for morphological characteristics according to the UPOV melon descriptor list for 68 characters (3 seedlings, 3 plants, 9 leafs, 6 flowers, 42 fruits and 5 seeds) and were analyzed by principle coordinate analysis (PCoA). Twenty quantitative characters (3 seedlings, 3 plants, 3 leafs, 2 flowers, and 9 fruits) were also measured and subjected to principle component analysis (PCA). The results revealed that the Turkish melon accessions have quite diversity for all the traits examined except green color of cotyledon, attitude of petiole and color of petals.
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    Gelling agents and culture vessels affect in vitro multiplication of banana plantlets
    (Funpec-Editora, 2010) Kacar, Y. A.; Bicen, B.; Varol, I.; Mendi, Y. Y.; Serce, S.; Cetiner, S.
    Agar is the most commonly used gelling agent in media for plant tissue culture. Because of the high price of tissue-culture-grade agar, attempts have been made to identify suitable alternatives. The type of culture vessel and lid also affects the gaseous composition inside the vessel as well as light penetration. In turn, the vessel affects growth parameters, such as shoot elongation, proliferation and fresh weight, as well as hyper-hydric degradation processes. We examined the effects of different culture vessels, including commercial glass jars, magenta boxes, and disposable containers, as well as different gelling agents (agar-agar, Agargel, Phytagel, and plant agar) on the micropropagation of Dwarf Cavendish bananas in an effort to find a combination that yields large numbers of high-quality seedlings. The different culture vessels did not significantly affect seedling culture success. The medium significantly affected shoot weight. Phytagel resulted in the highest shoot weight (overall mean = 2.4 g), while agar, Agargel and plant agar resulted in 1.7, 2.2 and 2.2 g, respectively. Disposable container/Phytagel and Magenta/Agargel combinations yielded the highest shoot weights (2.9 and 3.0 g, respectively). Mean shoot length increased progressively with subculture (four subcultures were made). The highest mean shoot length was obtained with Phytagel and Agargel media (6.4 and 6.3 cm, respectively). Shoot number was significantly affected by medium only at subculture 4. Overall, the highest mean shoot length was obtained with the Magenta/Agargel combination (8.5 cm). Phytagel and plant agar gave higher mean shoot number than agar and Agargel (2.1, 2.1 and 1.7 and 1.9, respectively). The costs of the media and of the culture vessels need to be taken into account for final choice of the banana shoot culture system.