摘要
为初步探究枣实蝇耐寒能力,利用过冷却点测定仪对枣实蝇(Carpomya vesuviana Costa)不同发育阶段的过冷却点及体液结冰点进行测定。结果表明,枣实蝇不同发育阶段的过冷却点不同,同一虫态个体间的过冷却点出现不同程度的差异。不同虫龄的过冷却点和体液结冰点差异显著,表现为随着虫龄的增加过冷却点和体液结冰点降低。其中枣实蝇3龄幼虫的过冷却点平均值为(-9.75±0.64)℃,体液结冰点平均值为(-5.53±0.46)℃。枣实蝇30日龄蛹过冷却点平均值为(-22.71±1.21)℃,1日龄蛹平均值为(-7.28±1.08)℃;而枣实蝇30日龄蛹的体液结冰点平均值为(-17.01±2.34)℃,1日龄蛹平均值为(-5.49±0.56)℃。可见,栆实蝇过冷却点较低,具有很强的耐寒性,极有可能适宜在中国大部分枣产区生存。
The supercooling points and freezing points of all stages of Carpomya vesuviana Costa were determined in order to study the cold tolerance of it.The supercooling points were different at each development stage and also different among individuals in the same stage.Supercooling points and freezing points decreased with the instar of Carpomya vesuviana Costa adding.The mean supercooling point of the 3rd instar larvae was（-9.75±0.64）℃ and the mean freezing point was（-5.53±0.46）℃.The mean supercooling point of the 30day-old pupae was（-22.71±1.21）℃and the mean freezing point was（-17.01±2.34）℃.The mean supercooling point of the 1day-old pupae was（-7.28±1.08）℃ and the mean freezing point was（-5.49±0.56）℃.The results presented that the supercooling point of Carpomya vesuviana Costa was low and its cold hardiness was great,which indicated its widely potential distribution in most jujube growing zones of China.
出处
《西北农业学报》
CAS
CSCD
北大核心
2014年第11期163-167,共5页
Acta Agriculturae Boreali-occidentalis Sinica
基金
新疆维吾尔自治区科技计划(201130102-3)
新疆维吾尔自治区重点学科森林培育资助项目
关键词
枣实蝇
过冷却点
体液结冰点
耐寒性
日龄
Carpomya vesuviana Costa
Supercooling point
Freezing point
Cold hardiness
Days of age
