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菠萝蜜乙醇提取物对小菜蛾的控制效果及其活性成分初步分析
引用本文:覃伟权,彭正强,张茂新.菠萝蜜乙醇提取物对小菜蛾的控制效果及其活性成分初步分析[J].园艺学报,2007,34(6):1387-1394.
作者姓名:覃伟权  彭正强  张茂新
作者单位:(中国热带农业科学院椰子研究所,海南文昌571339;中国热带农业科学院环境与植物保护研究所,海南儋州 571737;华南农业大学资环学院昆虫生态研究室,广州 510642)
摘    要: 测定菠萝蜜乙醇提取物不同施用浓度(A)和不同施用次数(B)处理对小菜蛾自然种群的干扰作用控制指数IIPC(Y),并用二次多项式逐步回归,得到回归方程Y=0.4628-10.6164 A-0.0212 B+117.1290 A2-0.7762 AB(F = 4 999.8125)。运用方程Y拟合得出菠萝蜜乙醇提取物6种施用浓度和3种施用次数处理组合对小菜蛾自然种群的干扰作用控制指数IIPC,其中0.05 g·mL-1×3次组合干扰控制作用效果最好,干扰作用控制指数为0.0448;其次是0.04 g·mL-1×3次组合,干扰作用控制指数为0.0688。用5种不同极性的有机溶剂洗提分离菠萝蜜乙醇提取物,获得5种洗提分离物。生物活性测定表明,乙酸乙酯洗提分离物对小菜蛾的产卵驱避率和拒食率最高,产卵驱避率为59.16%,拒食率为57.34%。对乙酸乙酯洗提分离物进一步进行硅胶柱层析分离,获得20种柱层析分离物,经过对其进行生物测定,分离物L1、L13、L18和L19 对小菜蛾幼虫拒食作用最明显,拒食率分别为85.71%、73.33%、78.57%和88.87%。

关 键 词:菠萝蜜  乙醇提取物  菜薹  小菜蛾  种群控制  生命表  活性成分分离
文章编号:0513-353X(2007)06-1387-08
收稿时间:2007-07-18
修稿时间:2007-10-10

Control Effects of Alcohol Extract of Artocarpus heteropyhllus on the Population of Diamondback Moth and Preliminary Analysis of the Active Chemical Compositions
QIN Wei-quan,PENG Zheng-qiang,ZHANG Mao-xin.Control Effects of Alcohol Extract of Artocarpus heteropyhllus on the Population of Diamondback Moth and Preliminary Analysis of the Active Chemical Compositions[J].Acta Horticulturae Sinica,2007,34(6):1387-1394.
Authors:QIN Wei-quan  PENG Zheng-qiang  ZHANG Mao-xin
Affiliation:(Coconut Research Institute, Chinese Academy of Tropical Agricultural Sciences, Wenchang,Hainan 571339, China; Environment and Plant Protection Research Institute, Chinese Academy of Tropical Agricultural Sciences , Danzhou, Hainan 571737 China; Laboratory of Insect Ecology, South China Agricultural University, Guangzhou 510642, China)
Abstract:In the field, the uniform design was used to test the index of Interference of Population Control (IIPC) of alcohol extract of Artocarpus heteropyhllus against the natural population of diamondback moth Plutella xylostella (L.) by different concentrations and span of times. Through assaying and returning of quadratic equation, a model depicting the correlation between IIPC and two factors (A and B) using uniform design was shown. The model equation is Y=0.4628-10.6164A-0.0212B+117.1290A2-0.7762AB(Y-IIPC, A-concentration, B-times). Actually, This model equation be used to check IIPC under the nature condition, the result showed that the composing of 0.05 g·mL-1×3 times gave the best effect of influencing, IIPC was 0.0448, followed by the composing of 0.04 g·mL-1×3 times, IIPC was 0.0688. The alcohol extracts of Artocarpus. heterophyllus was isolated by immersing five kind organic solvates, and that corresponding extracts have separated out. The extracts of first isolating were surveyed about the bioassay. The result showed that ethyl acetate extract of the alcohol extracts of A. heterophyllus had marked effect of oviposition deterrent and antifeedant on diamondback moth, and their rate was 59.16% and 57.34%. Twenty fractions were obtained using silica gel column from the ethyl acetate extract of the alcohol extracts of A. heterophyllus. By the bioassay, the fractions of L1 and L13 and L18 and L19 showed strong effect of antifeeding, their rate of antifeeding was 85.71%, 73.33%, 78.57%, 88.87%, respectively.
Keywords:Artocarpus heteropyhllus  Alcohol extract  Brassica parachinensis  Plutella xylostella (diamondback moth)  Population control  Life table  Analyzing of active chemical composition
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