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    Earliness, yield, and fruit quality characteristics in low chill peach-nectarines: a comparison of protected and open area cultivation
    (Tubitak Scientific & Technological Research Council Turkey, 2021) Caliskan, Oguzhan; Bayazit, Safder; Gunduz, Kazim; Kilic, Derya; Goktas, Sultan
    This study was carried out to determine the effects of protected cultivation on the earliness, yield, and fruit quality characteristics of some low chill peach-nectarine cultivars grown in the eastern Mediterranean region of Turkey. Phenological observations, yield parameters, and fruit quality characteristics were investigated:The chilling durations as CH (chilling hours), CU (chilling unit), and heat accumulations were determined. The 'Astoria' cultivar reached the highest cumulative yield of 29.11 kg/tree and 38.72 t/ha, and fruit size was 131.89 g and 61.74 mm in protected cultivation. The CH and CU values under protected cultivation were 28% and 40% lower than in open area cultivation, respectively. The heat accumulation was 30% higher for G DIH30 in the protected cultivation. The results of this study revealed that low chill peach-nectarine cultivars grown in protected cultivation showed variable earliness, yield, and fruit quality depending on chilling duration and heat accumulation.