ABSTRACT The present research was conducted to investigate the effect of direct sun-light on color development of seedless barberry fruit. The selected orchards were in different locations (with different altitude). On some trees, some inflorescences were chosen to cover as bagged (excluded from direct sun-light). Some cases also used as non-bagged. Bagging was done in different times during growing season. Results showed that in all regions, day temperatures were higher than 20°C, and night was lower than 30°C. The lowest difference of day-night temperatures observed in Marvak. Bagging showed a significant effect on anthocyanin (ant), hue angle (h*), lightness and redness (a*). Bagging time significantly influenced chroma (C*) and b/a values. Ant, C*, a*, and a/b values significantly affected by location characteristics specifically altitude, and the highest ant and a* value observed in Marvak. In all locations, the highest value of ant and h* observed with not-bagged fruits. The highest value of a* obtained in not-bagged fruits. It is concluded that direct sun is needed for color development of barberry fruits, however, night-cool temperatures also are important for anthocyanin accumulation of this fruit.

中文翻译：

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无核小檗 (Berberis vulgaris L.) 果实中的花青素积累和颜色发育：海拔高度和阳光的作用 - 初步结果

摘要 本研究旨在研究阳光直射对无核小檗果实颜色发育的影响。选定的果园位于不同的位置（不同的高度）。在一些树上，一些花序被选为袋装覆盖（排除阳光直射）。有些情况下也用作非袋装。装袋在生长季节的不同时间进行。结果表明，所有地区白天气温均高于20℃，夜间低于30℃。在马尔瓦克观察到的最低昼夜温差。装袋对花青素 (ant)、色调角 (h*)、亮度和红度 (a*) 有显着影响。装袋时间显着影响色度 (C*) 和 b/a 值。Ant、C*、a* 和 a/b 值受位置特征特别是海拔高度的显着影响，以及在 Marvak 中观察到的最高蚂蚁和 a* 值。在所有位置，蚂蚁和 h* 的最高值在未套袋水果中观察到。在未袋装水果中获得的最高 a* 值。结论是小檗果实的颜色发育需要阳光直射，然而，夜间凉爽的温度对于这种果实的花青素积累也很重要。