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ID:12923218
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页数:11页
时间:2018-07-19
《烤烟bf等级烟叶表面颜色区域性差异分析》由会员上传分享,免费在线阅读,更多相关内容在教育资源-天天文库。
1、烤烟B2F等级烟叶表面颜色区域性差异分析关键字:烤烟B2F等级烟叶表面颜色区域性差异分析本文为Word文档,感谢你的关注! 摘要:�榻沂究狙�B2F等级烟叶表面颜色的区域性差异,以2015年14个省份的B2F等级初烤烟叶为试验材料,采用多重比较和系统聚类法,对烟叶样品的表面颜色进行量化分析。结果表明:(1)烤烟表面颜色空间分布特征:明度(L*)为47.72~60.29;红度(a*)为15.61~18.89;黄度(b*)为39.00~50.62;颜色饱和度(C*)为42.41~53.76。(2)烤
2、烟B2F等级烟叶表面颜色具有较强的区域性差异:长江中上游烟区的明度指数L*显著高于西南烟区和东南烟区,东南烟区的明度指数L*显著低于其它四大烟区,西南烟区红度指数a*显著高于东南、黄淮和北方烟区;长江中上游烟区黄度指数b*和颜色饱和度指数C*均显著高于东南、黄淮和北方烟区。(3)不同种植区烤烟B2F等级烟叶表面颜色特征可分为4类,并呈现较强的区域特征:第一类主要集中在黄淮和北方烟区,总体特征是烟叶表面颜色红色特性较弱;第二类主要集中在东南烟区,总体特征是烟叶表面明度较低,显色暗淡,黄色特性弱,饱和
3、度不够。第三类主要集中在西南烟区和重庆等产区,总体特征是烟叶表面红色特性最为明显。第四类主要集中在四川凉山州和部分西南烟区,总体特征是烟叶表面颜色亮度较高,黄色显性较好,颜色饱和度高。 关键词:烤烟;B2F等级烟叶;表面颜色;区域性差异 S572.01文献标识号:A1001-4942(2017)04-0015-06 RegionalDiversityAnalysisofGradeB2F Flue-CuredTobaccoSurfaceColor WangGaili1,YuJianjun2
4、,ZhengXianbin1,WeiChunyang1,LiYue2,HuJianjun1,ZhenHuanju1 (1.CollegeofStaffFurtherEducation,ChinaNationalTobaccoCorporation,Zhengzhou450008,China; 2.TobaccoCollege,HenanAgriculturalUniversity,Zhengzhou450002,China) AbstractInordertorevealtheregiona
5、ldisparitiesofsurfacecolorofgradeB2Fflue-curedtobacco,thegradeB2Fflue-curedtobaccoleavesfrom14provincesin2015wereusedasexperimentalmaterials.Usingthemethodsofmultiplecomparisonandsystemclustering,thesurfacecoloroftobaccoleaveswasquantitativelyanalyzed
6、.Theresultsshowedthat:(1)thespatialdistributionfeaturesofflue-curedtobaccosurfacecolorwerebrightness(L*)as47.72~60.29,reddegree(a*)as15.61~18.89,yellowdegree(b*)as39.00~50.62,colorsaturation(C*)as42.41~53.76.(2)Therewerestrongregionaldifferencesinleaf
7、surfacecolorofgradeB2Fflue-curedtobacco.Thebrightness(L*)oftobaccoleavesfromtheupper-middlereachesofYangtzeRiverwassignificantlyhigherthanthatfromtheSoutheastandtheSouthwestareas,andthatfromtheSoutheastareawassignificantlylowerthanthatfromtheotherfour
8、areas.Thereddegrees(a*)oftobaccoleavesfromtheSouthwestareawassignificantlyhigherthanthatoftheSoutheast,theHuanghuaiandtheNorthareas.Theyellowdegree(b*)andcolorsaturation(C*)ofleavesfromtheupper-middlereachesofYangtzeRiverweresignificantlyhighe
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