共查询到16条相似文献，搜索用时 220 毫秒
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本文利用60Co-γ射线对加拿大进口转基因大豆进行了200Gy4、00Gy6、00Gy和1000Gy的辐照处理,研究了不同剂量对进境转基因大豆品质的影响,结果表明,对照水分低于各辐照处理组,且在0.05水平存在显著性差异;各辐照剂量对大豆蛋白质含量、矿物质元素的含量与对照之间没有显著性差异;200Gy4、00Gy、600Gy辐照后的大豆脂肪含量略低于对照,在0.05水平差异性显著,1000Gy剂量辐照与对照之间没有显著性差异。笔者认为1000Gy以下的辐照剂量对大豆的品质影响甚微。 相似文献
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辐照对谷物和豆类中谷斑皮蠹的影响 总被引：4，自引：0，他引：4
有效的检疫剂量应能使F1代没有繁殖能力,或阻止未成熟虫态的害虫发育为成虫.按照FAO推荐的辐照检疫研究方法,在文献检索的基础上,对谷斑皮蠹不同虫态的辐照敏感性进行了研究,得出48 Gy的辐照可以阻止卵的孵化,60Gy辐照幼龄幼虫、100Gy辐照老龄幼虫和滞育幼虫可以阻止其发育成蛹,200Gy的辐照可以阻止蛹和成虫繁殖下一代.结果表明,蛹和成虫为较抗辐照的虫态,200Gy可以作为辐照检疫剂量.在进行了辐照谷斑皮蠹的大量验证试验,分析了200Gy辐照处理对小麦、豆类感官和加工品质的影响后,认为200Gy可以作为谷物和豆类中谷斑皮蠹的有效检疫剂量. 相似文献
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ESS-010-03电子直线加速器对水果进行辐照处理的研究 总被引：9，自引：1，他引：8
本文对ESS-010-03电子直线加速器辐照处理水果中的检疫性害虫的适用性进行了研究,确定用400Gy的处理剂量能够有效杀灭水果中的橘小实蝇2—3龄幼虫,获得很好的处理效果,并对经过处理的13种水果的多项理化指标及风味检测研究证明,400Gy的处理剂量不会对水果产生不良影响,确认该装置用400Gy辐照剂量能作为水果检疫处理的方法。 相似文献
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为探索电子束辐照在我国红富士苹果检疫处理中的应用可行性,本文研究了不同剂量的电子束辐照对我国红富士苹果色泽、硬度、失水率、可溶性固形物、酸度、还原型维生素C、蛋白质、脂肪以及氨基酸等营养品质的影响。结果表明,1 155 Gy及以上剂量的电子束辐照可导致苹果硬度显著下降;随着储存时间的延长,330 Gy剂量以上辐照组苹果的还原型维生素C含量明显高于对照组;低于1 650 Gy电子束辐照18 d后对红富士苹果的色泽、失水率、可溶性固形物、酸度、蛋白质、脂肪、氨基酸等品质没有影响。因此,本研究认为低于990 Gy的电子束辐照处理红富士苹果是可行的。 相似文献
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为建立基于X射线辐照的害虫不育技术,以梨小食心虫2、5、8日龄的雄蛹为研究对象,利用X射线对其进行0（CK）、67、133和200 Gy剂量的辐照处理,明确其最适辐照蛹龄;并对最适辐照蛹龄的梨小食心虫进行X射线辐照,明确辐照处理对其羽化成虫的繁殖能力、寿命、飞行能力和交配竞争力的影响。结果表明,梨小食心虫最适辐照蛹龄为8日龄;雄蛹经67 Gy与133 Gy辐照剂量处理后,与其羽化后成虫交配后的雌成虫单雌产卵量分别为25.14粒和24.56粒,卵孵化率分别为18.21%和14.61%,寿命分别为16.80 d和15.60 d,均显著低于对照;梨小食心虫雄蛹辐照处理对其羽化成虫与雌成虫的交配次数无显著影响,但辐照处理雄蛹羽化后的雄成虫与雌成虫交配后,雌成虫的日产卵量比对照明显减少,且辐照剂量越高,日产卵量变化幅度越小,产卵期也越短;辐照处理对雄蛹羽化后雄成虫的飞行能力无明显影响,但其与雌成虫的交配竞争指数下降为0.15。 相似文献
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使用9MeV高能X射线对松墨天牛的老熟幼虫、蛹和成虫辐照处理的结果表明,辐照能明显影响其生长发育及繁殖能力。导致幼虫发育迟缓,幼虫期延长。对于老熟幼虫,100%阻止化蛹和出现成虫的剂量为50Gy,经机率值分析,死亡率达到99.9968%的检疫辐照剂量为61.4Gy(55.5～72.6);对于9日龄以下蛹,100%阻止繁殖F1代幼虫的不育剂量为120Gy。辐照也导致雌虫和雄虫的存活时间缩短,100%阻止11日龄以下雌虫和雄虫的不育剂量为140Gy。由此说明,辐照耐受性随发育的完善而增强。建议使用60～80Gy作为松墨天牛幼虫的检疫辐照剂量,140Gy作为蛹和初期成虫的检疫辐照剂量,用于原木和木质包装的检疫处理。 相似文献
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松墨天牛在我国的危险性和潜在风险性日益突出,应用辐照不育技术控制该虫是绿色防治的重要途径之一。本研究通过室内试验,测定并分析不同辐照剂量~(60)Coγ射线辐照松墨天牛雄成虫对松墨天牛的取食、排泄、交配、产卵、寿命、防治效果等的影响,筛选对松墨天牛雄成虫的γ射线最佳辐照剂量,为该项技术的实际应用提供科学依据。结果表明,与对照相比(未进行γ射线辐照),150、200、250和300 Gy剂量(剂量率1.5 Gy/min)~(60)Coγ射线辐照对雄性松墨天牛取食、排泄和寿命等生物学特性均无明显影响(P0.05);4种剂量γ射线辐照的雄成虫配对后,能正常刻槽产卵,但卵的孵化率均为0,即失去生殖能力。当雌:雄:处理过雄性天牛比为1:1:6时,150 Gy剂量辐照对天牛的防治效果较好,雌雄交配后卵的孵化率仅为2.63%。权衡辐照雄成虫对其取食、排泄、交配、寿命和防治效果的整体效应,在实际应用中应选择150 Gy剂量~(60)Coγ射线辐照为宜。 相似文献
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Socías-Viciana M González-Pradas E Saifi M Ureña-Amate MD Flores-Céspedes F Fernández-Pérez M 《Pest management science》2003,59(10):1162-1168
The adsorption of imidacloprid [1-(6-chloro-3-pyridinylmethyl)-N-nitroimidazolidin-2-ylideneamine] on heat-treated kerolite samples at 110 degrees C (K-110), 200 degrees C (K-200), 400 degrees C (K-400) and 600 degrees C (K-600) from pure water solution at 25 degrees C has been studied. The evolution of the surface properties of the kerolite samples, such as specific surface area and porosity, after heat treatment were analysed. The clays were characterised by using FTIR spectroscopy, X-ray diffraction, thermogravimetric and differential thermogravimetric analysis, surface analysis and Hg porosimetry. The experimental adsorption data points were fitted to the Freundlich equation in order to calculate the adsorption capacities (Kf) of the samples; Kf values ranged from 242 mg kg(-1) for the K-110 sample to 1005 mg kg(-1) for the K-600 sample. The values obtained for the removal efficiency (R) ranged from 62.8% for K-110 to 87.2% for K-600. The adsorption experiments showed that the stronger the heat treatment, the more effective was the adsorption of imidacloprid from pure water. This work shows the potential use of heat-activated kerolite for the removal of imidacloprid from environmental waters and drinking water resources. 相似文献
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Suitable postharvest treatment methods were investigated to improve the color of grape berries. Culture solutions containing jasmonic acid (JA), methyl jasmonate (MeJA), and prohydrojasmon (PDJ) enhanced the skin coloration of grape berries (‘Pione’) harvested at the initial stage of coloration. MeJA vapor treatment under sealed conditions increased anthocyanin accumulation in grape berries (‘AkiQueen’ and ‘Pione’) harvested at the early stage of skin coloration. Furthermore, promoting skin coloration by MeJA vapor treatment was as effective in mature clusters as it was in detached berries. These effects were confirmed in light conditions but not in constant darkness. Our results showed that postharvest MeJA vapor treatment improved skin coloration in grapes. In addition, postharvest treatment with MeJA was found to have no effect on the endogenous abscisic acid content of grape berry skins. Therefore, we suggest that MeJA vapor treatment can be a useful and labor-saving method for the horticultural industry. 相似文献
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β-Pinene uncouples oxidative phosphorylation and inhibits respiration in isolated rat liver mitochondria. The uncoupling effects are observed at lower concentrations (100 to 200 μM) than the inhibition of respiration (400 μM). At low concentrations, the effects observed could be explained by an increase of the passive permeability of the mitochondrial membrane produced by the terpene. Higher concentrations seemed to inhibit respiration through an effect on the electron transport chain. At the highest concentrations tested (600 to 1200 μM), β-pinene seemed to produce a partial resealing of the mitochondrial membrane. All effects can be explained by the interaction of β-pinene with the mitochondrial membrane. Other hydrophobic molecules tested do not show the effects of β-pinene or limonene on mitochondria. 相似文献