作　　者： ; ; ; ;

机构地区： 海南大学食品学院

出　　处： 《西南大学学报（自然科学版）》 2009年第7期7-11,共5页

摘　　要： 分别采用0，50，100，200和300mg／L5种不同浓度的BTH处理“象牙芒”和 “台农”两个芒果品种，72h后，用炭疽病菌对其进行损伤接种，贮于15℃和相对湿度为75％～85％条件下．通过对果实发病率、病班面积、色泽和硬度变化研究表明，在50～300mg／L范围内，BTH处理均有不同程度的处理效果．其中，“象牙芒”采用200mg／L，“台农”采用50mg／L的BTH处理效果最好，均能显著降低芒果果实炭疽病的发病率、色泽的转黄程度和果实软化，有效延缓果实病斑面积扩展速度和大小． Two varieties of mango （“Nang klangwan”and “Tainong”） were treated with BTH （benzothia- diazole） at 0, 50,100, 200 and 300 mg/L. After 72 h, and inoculated with Colletotichum gloeosporioides thereafter, and then stored at 15 ℃ and RH 75%-85%. Disease incidence of the fruit and changes in le- sion area, color and luster and hardness were determined. The result showed that BTH treatments with concentrations within the range of 50-300 mg/L had inhibitive effect on anthracnose. The optimum con- centration was 200 mg/L for“ Nang klangwan”and 50 mg/L for “Tainong”. The disease incidence of C. gloeosporioides, the changing degree of color and intenerating of fruit were significantly decreased, and the expansion offruit lesion area was markedly delayed.

关 键 词： 芒果炭疽病 最适浓度

领　　域： [农业科学] [农业科学]