本文選題：庫爾勒香梨 + 氣候品質��； 參考：《南京信息工程大學》2017年碩士論文

【摘要】：農產品氣候品質認證,主要針對初級農產品或粗加工產品,為避免農產品在生產、貯藏、加工、流通過程中產生的信息不對稱,氣象部門作為“第三方”通過公開的認證程序為農產品市場銷售提供信用支撐,有助于減少消費者購買成本,打造新型農產品品牌,加快農產品市場流通速度,提高農業(yè)產出值,助力地方經濟發(fā)展。目前國內梨果實氣候品質認證種類少、門檻高、發(fā)展不完善,使大多企業(yè)及農戶望而卻步,市場迫切需要門檻低、針對性強、評價系統(tǒng)完善的認證體系出現(xiàn)。因此,本文通過分析不同顏色系數(shù)對香梨外觀品質的影響,建立了香梨果實外觀品質評價體系;并通過分析不同氣象因子與香梨果實內在品質的關系,建立了香梨果實內在品質評價體系。結果表明:(1)庫爾勒香梨果實外觀品質與顏色系數(shù)的關系。運用主成分分析法篩選出的果實顏色評價因子是a、Hue (色調值)、Brightness (色光值)、a/b (從黃色逐漸加深至趨近于紅色的程度)。將果實顏色評價標準統(tǒng)一劃分為4個等級,分別為特優(yōu)、優(yōu)、良和一般,則2015年庫爾勒香梨的果實顏色等級認證結果為:特優(yōu)13.75%,優(yōu)57.5%,良18.75%,一般10%。經過驗證,平均分級一致度為94.75%,能夠滿足水果按顏色分級的要求。(2)庫爾勒香梨果實內在品質與氣象因子的關系。單果重的主要影響因子是5月氣溫日較差和5月相對濕度。果形指數(shù)的主要影響因子是5月日平均氣溫和9月相對濕度。果實硬度的主要影響因子是67月月平均氣溫和8月氣溫日較差�？扇苄怨绦挝锏闹饕绊懸蜃邮�7月氣溫日較差和相對濕度,8月日平均氣溫和相對濕度,9月日平均最低氣溫。(3) 2015年庫爾勒市各園藝場香梨氣候品質評價結果為哈拉蘇園藝場良好,上戶鎮(zhèn)園藝場良好,沙依東園藝場優(yōu)。經驗證,2015年庫爾勒市遭遇冰雹、高溫熱害、大風天氣等氣象災害,對庫爾勒香梨氣候品質認證結果有嚴重影響,即最終認證結果與往年相比等級偏低,符合實際情況。
[Abstract]:Climate quality certification of agricultural products, mainly aimed at primary agricultural products or rough products, in order to avoid asymmetric information generated in the production, storage, processing and circulation of agricultural products, The meteorological department, as a "third party", provides credit support for the marketing of agricultural products through an open certification process, which helps to reduce consumer purchase costs, create new agricultural product brands, and speed up the circulation of agricultural products. Raise agricultural output value, help local economy development. At present, the domestic pear fruit climate quality certification type is few, the threshold is high, the development is not perfect, causes the majority enterprise and the peasant household to be deterred, the market urgently needs the threshold to be low, the pertinence is strong, the appraisal system perfect authentication system appears. Therefore, by analyzing the influence of different color coefficients on the appearance quality of fragrant pear, the evaluation system of fruit appearance quality of fragrant pear was established, and the relationship between different meteorological factors and internal quality of fragrant pear fruit was analyzed. The internal quality evaluation system of fragrant pear fruit was established. The results showed that the fruit appearance quality of Korla pear was related to the color coefficient. The evaluation factor of fruit color selected by principal component analysis (PCA) is a hue (tonal value / Brightness) (a / b) (from yellow to red). The fruit color evaluation criteria were divided into 4 grades, which were excellent, good and general, respectively. The results of color grade certification of Korla fragrant pear in 2015 were as follows: Teyou 13.75, you 57.5, good 18.75, general 1075. The results showed that the average grading consistency was 94.75, which could meet the requirements of color grading of fruits. (2) the relationship between the intrinsic quality and meteorological factors of Korla fragrant pear. The main influencing factors of single fruit weight were May daily temperature range and May relative humidity. The main influencing factors of fruit shape index were May mean air temperature and September relative humidity. The main influencing factors of fruit firmness were the monthly mean temperature in July and the daily difference in temperature in August. The main influencing factors of soluble solids are the daily temperature range and relative humidity in July, the mean daily temperature and relative humidity in August, and the mean daily minimum temperature in September. Lasso horticulture is good, ShangHuzhen horticulture fair is good, Sha Yidong horticulture farm excellent. It has been proved that the weather disasters such as hailstorm, high temperature heat damage and strong wind weather encountered in Korla City in 2015 have a serious impact on the results of climate quality certification of Korla fragrant pear, that is, the final certification result is lower than that of previous years, which is in line with the actual situation.
【學位授予單位】：南京信息工程大學
【學位級別】：碩士
【學位授予年份】：2017
【分類號】：S661.2;S162

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