持续低温阴雨天气对四川盆地早熟桃生产的影响

Effects of Sustainable Low Temperature and Overcast Rain Weather on Early Peach Production in Sichuan Basin

[目的]研究气候变化对四川早熟桃生产的影响。[方法]以四川盆地桃主产区(龙泉山脉)3个早熟桃品种为材料,分析比较其连续2年的枝梢生长、果实品质、熟期、产量及经济效益差异。[结果]2010年早熟桃一、二、三次枝生长量较2009年增加12.47%～50.78%,且三次枝数量明显增加,果实生长发育进程变缓,成熟期推迟4～8 d,果实单果重略有下降,可溶性固形物、Vc、可溶性总糖、总酸含量以及糖酸比下降4.76%～60.67%,果实批发价格和单位面积产值显著降低。[结论]受持续低温阴雨天气影响,2010年四川早熟桃经济效益明显下降。

[ qbjective ] The aim was to study the influence of climate change on the early peach in Sichuan Province. [ Method ] With 3 early peach varieties as the tested materials, the shoot growth, fruit quality, maturity, yield and economic benefit differences of the peach in consecutive 2 years were analyzed and compared. [ Result] The increments of the first, second and third shoot of the early peach in 2010 were 12.47% -50.78% higher than that in 2009 and the number of the third shoot was increased significantly. The fruit growth and development process became slowly, the maturity stage of fruit was delayed by 4 - 8 d and the weight per fruit was decreased slightly. The content of soluble solids, Vc, total soluble sugar, total acid and sugar-acid ratio were decreased by 4.76% -60.67%. The fruit wholesale prices and output value per unit area were reduced significantly. [ Conclusion] Under the effect of the sustainable low temperature and rainy weather, the eco- nomic benefit of the early peach was decreased obviously in 2010 in Sichuan Province.