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測(cè)試部位對(duì)獼猴桃近紅外光譜響應(yīng)特性的影響?yīng)?/div>
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    摘要:

    應(yīng)用近紅外光譜漫反射技術(shù),,采集獼猴桃赤道附近不同測(cè)試部位的近紅外光譜,,對(duì)不同測(cè)試部位的平均吸光度和噪聲進(jìn)行差異性分析,對(duì)不同測(cè)試部位的近紅外光譜波峰位置,、不同波長(zhǎng)處的吸光度以及近紅外光譜糖度定量分析模型的預(yù)測(cè)精度進(jìn)行了單因素方差分析,。同一獼猴桃在赤道附近的不同測(cè)試部位,,其近紅外光譜平均吸光度及噪聲的波動(dòng)性較小,波峰位置差異不顯著,;同一獼猴桃在相同的波峰位置處,,不同測(cè)試部位的吸光度差異不顯著。越是靠近長(zhǎng)波近紅外區(qū),,吸光度的相對(duì)標(biāo)準(zhǔn)偏差越大,,但是從總體上看,不同波長(zhǎng)位置,、不同測(cè)試部位吸光度的離散度都不大,;用不同測(cè)試部位的光譜所建立的糖度定量分析模型檢測(cè)精度差異不顯著。獼猴桃赤道附近不同測(cè)試部位的近紅外光譜都可以用來(lái)分析整個(gè)獼猴桃的品質(zhì),。

    Abstract:

    To find reasonable position on the kiwifruit to collect near-infrared spectrum information for quality evaluation, near-infrared spectrum was collected at different locations near the equator on the kiwifruit applying the near-infrared spectrum diffuse reflection technology. Difference analysis on the average absorbance and the noise of the spectrum on the tested locations was carried out. The single factor variance analysis was conducted to the nearinfrared spectrum wave ridge position and the absorbance at different locations, as well as the prediction precision of the Brix quantitative analysis model. The results showed that the variety for the average absorbance and noise for the spectrum at different locations around the equator on the same kiwifruit was low, and the wave ridge position difference was not remarkable. The difference of absorbance was not remarkable at different locations in the same wave ridge position for the same kiwifruit. The relatively standard deviation of the absorbance was greater when the wavelength was longer in the near infrared area. However, the degree of scatter of data was not high at all wavelength at different locations in the same wave ridge position. The deference for the Brix prediction models built by spectrum data at different locations was not remarkable. It is concluded that the near-infrared spectrum information collected at different locations around the equator of the kiwifruit can be used for quality evaluation for the entire fruit without high difference.

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陳香維,楊公明.測(cè)試部位對(duì)獼猴桃近紅外光譜響應(yīng)特性的影響?yīng)琜J].農(nóng)業(yè)機(jī)械學(xué)報(bào),2009,40(1):124-128.[J]. Transactions of the Chinese Society for Agricultural Machinery,2009,40(1):124-128.

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