【摘要】 为评价敦煌不同产区‘李广杏’果实的优劣，对比了敦煌4个典型气候集中产区‘李广杏’的物候期和果实品质。结果表明，4个产区‘李广杏’各物候期相差3～10 d，树体长势有明显差异；月牙泉镇、莫高镇产区果实较大，转渠口镇和月牙泉镇产区果型更高桩；果实可溶性糖含量由高到低依次为七里镇>莫高镇>转渠口镇>月牙泉镇，差异显著。结合主成分分析对4个产区‘李广杏’果实品质进行综合评价，得分由高到低依次为七里镇>月牙泉镇>莫高镇>转渠口镇。试验表明，七里镇产区的果实综合品质最好，在敦煌‘李广杏’栽培中更具产地生态优势。更多还原

【Abstract】 To evaluate the fruit quality of ’Liguangxing’ in different production areas of Dunhuang, the phenological periods and fruit quality of ’Liguangxing’ in four typical climatically concentrated production areas of Dunhuang were compared. The results showed that there was a difference of 3-10 days in each phenological period of’Liguangxing’ in the four production areas, and there were obvious differences in tree growth. The size of ’Liguangxing’was larger in Yueyaquan Town and Mogao Town, and the fruit type was higher in Zhuanqukou Town and Yueyaquan Town. The soluble sugar content of fruits from high to low was Qili Town>Mogao Town>Zhuanqukou Town>Yueyaquan Town, with significant differences. Combined with the principal component analysis, the fruit quality of ’Liguangxing’ in the four producing areas was comprehensively evaluated, and the scores were Qili Town>Yueyaquan Town>Mogao Town>Zhuanqukou Town from high to low. The experiments have shown that the fruit of the Qili Town production area has the best overall quality and is more ecologically advantageous in the cultivation of Dunhuang ’Liguangxing’.更多还原