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首页> 外文期刊>Acta Horticulturae >Rest completion and growth of 'Thompson Seedless' grapes as a function of temperatures.
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Rest completion and growth of 'Thompson Seedless' grapes as a function of temperatures.

机译：汤普森无核葡萄的成熟和生长随温度的变化。

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摘要

Research was carried out over four seasons, from 2000 to 2003, in order to establish the effect of temperature on phenological development of 'Thompson Seedless' grapevine in the Aconcagua Valley, Chile (32 degrees 45S, 600 m a.s.l.). Winter chilling requirement to break dormancy was determined by different models, which were compared according to Ashcroft et al. methodology (1977). Grapevine development since dormancy breaking was characterized based on growing degree-hours (GDH) and degree-days (DD). It was concluded that the Utah model was the least variable model for rest estimation, with 430 chilling units up to dormancy break, which would have occurred between June 6 and June 17 for the years between 2000 and 2003. Heat requirement from rest completion up to full bloom were 9,451 GDH, 252 DD and 145 days, and 16,101 GDH, 713 DD or 77 days were required from 4 mm berry up to harvest. In order to validate heat requirements for berry growth, phenological stages were estimated for the season 2003-2004, the most accurate estimation was obtained when GDH were used.
机译：为了确定温度对智利阿空加瓜谷地“汤普森无核”葡萄的物候发育的影响（32度45S，600 m a.s.l.），进行了四个季节的研究，从2000年到2003年。根据不同的模型确定了打破休眠的冬季寒冷需求，并根据Ashcroft等人的方法进行了比较。方法论（1977）。休眠中断后的葡萄发育基于生长小时数（GDH）和生长天数（DD）来表征。结论是，犹他州模型是静息估计的最小变量模型，其中有430台制冷机组直至休眠中断，这将发生在2000年至2003年的6月6日至6月17日之间。从4毫米浆果到收获的整个过程需要9,451 GDH，252 DD和145天的盛开，而需要16,101 GDH，713 DD或77天。为了验证浆果生长的热量需求，估计了2003-2004赛季的物候期，使用GDH时获得了最准确的估计。

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