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.
出处
《西南大学学报（自然科学版）》
CAS
CSCD
北大核心
2009年第7期7-11,共5页
Journal of Southwest University(Natural Science Edition)
基金
海南省自然基金资助项目(807036)
华南热带农业大学博士启动基金资助项目(Rndy0704)
关键词
BTH
芒果炭疽病
最适浓度
BTH （benzothiadiazole）
mango anthracnose
optimum concentration
