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    Comparison of open field and protected cultivation of five early table grape cultivars under Mediterranean conditions
    (Tubitak Scientific & Technological Research Council Turkey, 2011) Kamiloglu, Onder; Polat, Atilla Aytekin; Durgac, Coskun
    The production of grapes for early table consumption is becoming more popular in the Mediterranean region of Turkey. In this study, the cultivation of 5 early table grape cultivars ('Ergin cekirdeksizi', 'Uslu', 'Yalova incisi', 'Cardinal', and 'Perlette') in the open field and under protected cultivation were compared in 2004-2005 and 2005-2006 seasons. For the protected culture, the grapevines were covered on 23 February 2004 and 24 February 2005. The phenologic observations, pomologic analyses, yield variables, and primary shoot growth were determined. When compared to open field production, protected production led to 15-18 days earliness. 'Uslu' was the earliest cultivar in both open field and protected cultivation. The cluster weight, cluster width, and cluster length of cultivars did not vary between the different production treatments. Total soluble solids (TSS) and pH values of both of the production types were similar. For 'Yalova incisi' and 'Cardinal', the yield in open field production was higher than that in protected cultivation. In protected cultivation, the effect of production sites on shoot development was greater than it was in the open field. The highest primary shoot length was observed in 'Uslu' in both treatments.
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    Öğe
    SEASONAL VARIATION OF NUTRIENT CONTENTS IN DIFFERENT ORGANS OF THE POMEGRANATE GENOTYPE (Punica granatum L. CV. 'KISNARI')
    (Parlar Scientific Publications (P S P), 2021) Turker, Serdar; Polat, Atilla Aytekin
    This study determines the seasonal variation of macro (N, P, K, Mg. Ca) and micro (Cu. Fe, Mn. Zn) plant nutrients in the fruit peel (green, half-ripe and full-ripe periods), leaves (over eight different periods) and shoots (over eleven different periods) during the vegetation period of the Kisnart (Punica granatum L.) genotype grown in Gaziantep region. The experiment was designed according to completely randomized design with three replications having single tree in each replication. Throughout the study, it was found that in the fruit peel, N, P, Cu and Zn decreased, Ca, K and Fe increased while Mn and Mg did not appear to change so much during vegetation. In the leaves, it was found that the N, P and Ca content increased; that Mg increased from the first sampling date (June 16-30) to the second half of August; that Zn, K and Cu levels were undulating until August 15 and then decreased until mid December; that Fe increased until August 15, decreased and then increased from this period to the last sampling date; that Mn increased until August 15 during vegetation and then decreased until the last sampling date as of this date. In the shoots; it was determined that N, P, Cu and Zn nutrients were undulating until the fall; Ca increased in January-May period and then showed a partial decrease in June, increased from this period to September and then showed an undulant pattern in September-December period. K, Mg. Fe and Mn elements appeared to increase in January-March period, and then every element showed an undulating pattern until the fall period. and increased until the end of December. The research results showed that it would be more convenient to take samples from leaves within the period of July 15 and September 15, when many macro and micro nutrients do not vary as much.