干旱区骏枣坐果后期含糖量变化及其理论模式研究

Study on Fruit Setting Sugar Content of Junzao in Arid Areas and its Theoretical Model

对干旱区栽培的骏枣,在坐果后期进行定期多点测定含糖量变化试验。结果表明:骏枣可溶性固形物的增加有3个明显不同的阶段,其中以第2阶段增长最快,可溶性固形物增量占采收时总含糖量的40.0%,日均增加0.473%。理论模式验证表明,骏枣含糖量增加的规律基本符合Logestics生长方程。

Sugar content in the later stage of Junzao fruit setting was measured in arid areas. Results showed that the increase of Junzao soluble solids had 3 different phases. Among them, soluble solids had the fattest growth in the second phase, accounting for 40.0 % of the total sugar content, and increased by 0.473 % per day. Theoretical model experiment showed that the rule of sugar content increase in Junzao accorded with Logestics growth equation.