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一.產品介紹

在(zai)(zai)玉(yu)(yu)溪(xi)市八縣一區(qu)，這里的(de)(de)(de)(de)(de)煙(yan)葉(xie)在(zai)(zai)全省(sheng)(sheng)都(dou)是最優(you)(you)的(de)(de)(de)(de)(de)，但大(da)部(bu)分都(dou)被(bei)紅(hong)(hong)塔(ta)(ta)集團收購了，只有(you)很少的(de)(de)(de)(de)(de)外調到省(sheng)(sheng)外。現在(zai)(zai)，紅(hong)(hong)塔(ta)(ta)集團的(de)(de)(de)(de)(de)原料基地在(zai)(zai)省(sheng)(sheng)內主要有(you)玉(yu)(yu)溪(xi)、大(da)理、楚雄、昭通，每(mei)年收購量在(zai)(zai)500萬擔左右，用于近500萬箱名優(you)(you)煙(yan)的(de)(de)(de)(de)(de)生產(chan)。來(lai)自云煙(yan)之(zhi)鄉玉(yu)(yu)溪(xi)的(de)(de)(de)(de)(de)原料，是紅(hong)(hong)塔(ta)(ta)山幾十年不衰的(de)(de)(de)(de)(de)根本原因。“玉(yu)(yu)溪(xi)”煙(yan)就是全部(bu)選用玉(yu)(yu)溪(xi)煙(yan)葉(xie)來(lai)做的(de)(de)(de)(de)(de)，所以他(ta)們(men)說，天下煙(yan)葉(xie)在(zai)(zai)云南，云煙(yan)之(zhi)鄉在(zai)(zai)玉(yu)(yu)溪(xi)。

二.自然生態環境和人文歷史因素

（1）土(tu)(tu)(tu)(tu)(tu)壤(rang)(rang)條件(jian)：玉(yu)溪市地(di)處云貴高(gao)原西(xi)緣，地(di)勢西(xi)北高(gao)，東(dong)南低(di)，地(di)形復雜，山(shan)(shan)地(di)、峽谷(gu)、高(gao)原、盆地(di)交錯分布。山(shan)(shan)區面(mian)(mian)積(ji)占(zhan)90.6%，壩區面(mian)(mian)積(ji)占(zhan)7.45%，湖泊(bo)面(mian)(mian)積(ji)占(zhan)1.95%，森林覆蓋率(lv)43.8%。最(zui)高(gao)點海拔3137米，最(zui)低(di)點海拔327米，大部分耕(geng)地(di)在海拔1500～1800米。境內土(tu)(tu)(tu)(tu)(tu)壤(rang)(rang)類型主(zhu)要有紅壤(rang)(rang)、棕壤(rang)(rang)、黃棕壤(rang)(rang)、燥紅壤(rang)(rang)、赤紅壤(rang)(rang)、紫色土(tu)(tu)(tu)(tu)(tu)和水稻(dao)土(tu)(tu)(tu)(tu)(tu)七類，其中適宜栽(zai)種(zhong)烤煙的(de)(de)土(tu)(tu)(tu)(tu)(tu)壤(rang)(rang)類型為紅壤(rang)(rang)、紫色土(tu)(tu)(tu)(tu)(tu)和水稻(dao)土(tu)(tu)(tu)(tu)(tu)，占(zhan)總面(mian)(mian)積(ji)的(de)(de)70%。玉(yu)溪市土(tu)(tu)(tu)(tu)(tu)壤(rang)(rang)立地(di)條件(jian)較(jiao)(jiao)好(hao)，土(tu)(tu)(tu)(tu)(tu)層深(shen)厚，土(tu)(tu)(tu)(tu)(tu)質疏(shu)松，通透性好(hao)；pH值5.5～7.5，平(ping)均(jun)(jun)5.8；有機質平(ping)均(jun)(jun)3%，速(su)效(xiao)(xiao)氮平(ping)均(jun)(jun)100mg/Kg，速(su)效(xiao)(xiao)磷(lin)平(ping)均(jun)(jun)12mg/Kg，速(su)效(xiao)(xiao)鉀(jia)較(jiao)(jiao)豐富(fu)，平(ping)均(jun)(jun)130mg/Kg；0～60cm地(di)層土(tu)(tu)(tu)(tu)(tu)壤(rang)(rang)含氯量小于25mg/Kg。

（2）水(shui)(shui)(shui)文情況：全(quan)(quan)市(shi)多年平(ping)均(jun)水(shui)(shui)(shui)資(zi)源總量(liang)(liang)為53.62億(yi)(yi)立(li)(li)方(不(bu)含(han)元江(jiang)和(he)南盤(pan)江(jiang)的(de)(de)過(guo)境水(shui)(shui)(shui)量(liang)(liang))，分屬(shu)紅河(he)、珠江(jiang)流(liu)域，其(qi)中地表水(shui)(shui)(shui)37.94億(yi)(yi)立(li)(li)方，占(zhan)全(quan)(quan)市(shi)水(shui)(shui)(shui)資(zi)源總量(liang)(liang)的(de)(de)70.8％，地下(xia)水(shui)(shui)(shui)15.68億(yi)(yi)立(li)(li)方，占(zhan)全(quan)(quan)市(shi)水(shui)(shui)(shui)資(zi)源總量(liang)(liang)的(de)(de)29.2％。水(shui)(shui)(shui)系(xi)發達，市(shi)內(nei)河(he)流(liu)分屬(shu)元江(jiang)、南盤(pan)江(jiang)兩大水(shui)(shui)(shui)系(xi)，元江(jiang)水(shui)(shui)(shui)系(xi)主(zhu)(zhu)要支流(liu)有(you)綠汁江(jiang)、清水(shui)(shui)(shui)河(he)、小河(he)底河(he)、扒河(he)等80多條，全(quan)(quan)長(chang)360公(gong)里(li)，年徑(jing)流(liu)量(liang)(liang)7.0億(yi)(yi)立(li)(li)方米(mi)；南盤(pan)江(jiang)水(shui)(shui)(shui)系(xi)有(you)南盤(pan)江(jiang)、曲(qu)江(jiang)、海口河(he)等17條主(zhu)(zhu)要河(he)流(liu)，全(quan)(quan)長(chang)292公(gong)里(li)，年徑(jing)流(liu)量(liang)(liang)3.8億(yi)(yi)立(li)(li)方米(mi)。境內(nei)有(you)撫仙湖(hu)、星云湖(hu)、杞麓湖(hu)三個(ge)高原湖(hu)泊，總蓄水(shui)(shui)(shui)量(liang)(liang)210億(yi)(yi)立(li)(li)方。有(you)水(shui)(shui)(shui)庫548座(zuo)，其(qi)中中型水(shui)(shui)(shui)庫15座(zuo)，小型水(shui)(shui)(shui)庫533座(zuo)，總庫容量(liang)(liang)6.83億(yi)(yi)立(li)(li)方。為確(que)保山(shan)地烤煙抗旱早栽，山(shan)區、半山(shan)區建有(you)小水(shui)(shui)(shui)窖22萬個(ge)。全(quan)(quan)市(shi)耕地有(you)效灌溉率75.75%。

（3）氣候條件：玉溪(xi)市地處低緯度高原，具有熱(re)(re)帶(dai)(dai)、亞(ya)(ya)熱(re)(re)帶(dai)(dai)、溫(wen)帶(dai)(dai)三種氣候類型，屬內陸高原氣候，四(si)季(ji)(ji)溫(wen)差(cha)小(xiao)(xiao)，晝(zhou)夜溫(wen)差(cha)大，四(si)季(ji)(ji)如春。植煙(yan)區(qu)主要集中(zhong)在中(zhong)亞(ya)(ya)熱(re)(re)帶(dai)(dai)和(he)(he)北亞(ya)(ya)熱(re)(re)帶(dai)(dai)，年(nian)平均氣溫(wen)16.9℃，無霜期250～300天，冬季(ji)(ji)溫(wen)而不冷，夏季(ji)(ji)暖(nuan)而不熱(re)(re)，煙(yan)區(qu)冬短無夏，春季(ji)(ji)較長，烤煙(yan)大田種植中(zhong)、后期溫(wen)差(cha)較小(xiao)(xiao)，是清(qing)香型優(you)質烤煙(yan)的(de)代表產地。年(nian)降(jiang)水量(liang)(liang)700～900毫(hao)米，相(xiang)對濕度平均為74.5%，烤煙(yan)全生(sheng)育期雨量(liang)(liang)在550～750mm之間，雨量(liang)(liang)適(shi)中(zhong)，與優(you)質煙(yan)生(sheng)長發育的(de)需(xu)水特(te)性一致。年(nian)日照(zhao)時數2187小(xiao)(xiao)時，年(nian)均太(tai)陽輻射總量(liang)(liang)5265兆焦耳/平方(fang)米，與全國多數煙(yan)區(qu)相(xiang)比輻射量(liang)(liang)多，光(guang)照(zhao)充足，且光(guang)譜(pu)中(zhong)最易被烤煙(yan)吸收利用的(de)紅(hong)光(guang)和(he)(he)藍紫光(guang)較多，光(guang)譜(pu)季(ji)(ji)節(jie)變(bian)化(hua)與優(you)質煙(yan)對光(guang)的(de)需(xu)求(qiu)配合一致，十(shi)分(fen)適(shi)宜(yi)于優(you)質煙(yan)葉生(sheng)長。

（4）人(ren)文歷(li)(li)(li)史(shi)情況：玉(yu)(yu)(yu)(yu)溪(xi)(xi)(xi)煙(yan)(yan)(yan)(yan)(yan)(yan)(yan)葉(xie)種(zhong)(zhong)(zhong)(zhong)植(zhi)(zhi)(zhi)歷(li)(li)(li)史(shi)悠(you)久。早在(zai)哥(ge)倫布發(fa)現美洲煙(yan)(yan)(yan)(yan)(yan)(yan)(yan)草之前，已有煙(yan)(yan)(yan)(yan)(yan)(yan)(yan)草種(zhong)(zhong)(zhong)(zhong)植(zhi)(zhi)(zhi)，至今已有500多(duo)年(nian)(nian)(nian)(nian)歷(li)(li)(li)史(shi)。清(qing)末，晾曬煙(yan)(yan)(yan)(yan)(yan)(yan)(yan)種(zhong)(zhong)(zhong)(zhong)植(zhi)(zhi)(zhi)已相當普遍；民(min)國(guo)(guo)中期，僅通(tong)海(hai)縣(xian)就種(zhong)(zhong)(zhong)(zhong)植(zhi)(zhi)(zhi)9800畝(mu)(mu)。烤(kao)(kao)煙(yan)(yan)(yan)(yan)(yan)(yan)(yan)，民(min)國(guo)(guo)三年(nian)(nian)(nian)(nian)（1914年(nian)(nian)(nian)(nian)）即已在(zai)紅(hong)(hong)塔(ta)區(qu)、通(tong)海(hai)兩縣(xian)試(shi)種(zhong)(zhong)(zhong)(zhong)72畝(mu)(mu)并(bing)獲(huo)得成(cheng)功；民(min)國(guo)(guo)31年(nian)(nian)(nian)(nian)，玉(yu)(yu)(yu)(yu)溪(xi)(xi)(xi)種(zhong)(zhong)(zhong)(zhong)植(zhi)(zhi)(zhi)烤(kao)(kao)煙(yan)(yan)(yan)(yan)(yan)(yan)(yan)1311畝(mu)(mu)，收(shou)獲(huo) 煙(yan)(yan)(yan)(yan)(yan)(yan)(yan)葉(xie)4.7萬(wan)(wan)(wan)千(qian)(qian)克(ke)；民(min)國(guo)(guo)32年(nian)(nian)(nian)(nian)，擴大到江川(chuan)、易門；至民(min)國(guo)(guo)34年(nian)(nian)(nian)(nian)，累計種(zhong)(zhong)(zhong)(zhong)植(zhi)(zhi)(zhi)面積(ji)2.71萬(wan)(wan)(wan)畝(mu)(mu)；民(min)國(guo)(guo)35年(nian)(nian)(nian)(nian)，擴大至新平等縣(xian)；民(min)國(guo)(guo)38年(nian)(nian)(nian)(nian)，玉(yu)(yu)(yu)(yu)溪(xi)(xi)(xi)種(zhong)(zhong)(zhong)(zhong)植(zhi)(zhi)(zhi)面積(ji)達3.1萬(wan)(wan)(wan)畝(mu)(mu)，種(zhong)(zhong)(zhong)(zhong)植(zhi)(zhi)(zhi)面積(ji)和(he)產(chan)(chan)量(liang)占(zhan)全(quan)省(sheng)的(de)(de)80%以上。新中國(guo)(guo)成(cheng)立后(hou)，玉(yu)(yu)(yu)(yu)溪(xi)(xi)(xi)晾曬煙(yan)(yan)(yan)(yan)(yan)(yan)(yan)種(zhong)(zhong)(zhong)(zhong)植(zhi)(zhi)(zhi)和(he)加工(gong)逐漸減少，烤(kao)(kao)煙(yan)(yan)(yan)(yan)(yan)(yan)(yan)逐漸增(zeng)加。1951年(nian)(nian)(nian)(nian)，政(zheng)府將(jiang)烤(kao)(kao)煙(yan)(yan)(yan)(yan)(yan)(yan)(yan)列(lie)入(ru)(ru)計劃生(sheng)產(chan)(chan)，當年(nian)(nian)(nian)(nian)種(zhong)(zhong)(zhong)(zhong)植(zhi)(zhi)(zhi)4.3萬(wan)(wan)(wan)畝(mu)(mu)，總產(chan)(chan)量(liang)300萬(wan)(wan)(wan)千(qian)(qian)克(ke)。由于(yu)玉(yu)(yu)(yu)(yu)溪(xi)(xi)(xi)煙(yan)(yan)(yan)(yan)(yan)(yan)(yan)葉(xie)色澤橙黃(huang)、富油潤、味(wei)醇和(he)，在(zai)1953年(nian)(nian)(nian)(nian)河(he)南許昌召開的(de)(de)烤(kao)(kao)煙(yan)(yan)(yan)(yan)(yan)(yan)(yan)質量(liang)評(ping)比會(hui)上，玉(yu)(yu)(yu)(yu)溪(xi)(xi)(xi)煙(yan)(yan)(yan)(yan)(yan)(yan)(yan)葉(xie)評(ping)分108分，名列(lie)全(quan)國(guo)(guo)之首，成(cheng)為(wei)熊貓(mao)、中華等高級(ji)香煙(yan)(yan)(yan)(yan)(yan)(yan)(yan)的(de)(de)主(zhu)要(yao)配方原(yuan)料(liao)。改革(ge)開放之前，玉(yu)(yu)(yu)(yu)溪(xi)(xi)(xi)煙(yan)(yan)(yan)(yan)(yan)(yan)(yan)葉(xie)在(zai)曲折中發(fa)展(zhan)，1978年(nian)(nian)(nian)(nian)，種(zhong)(zhong)(zhong)(zhong)植(zhi)(zhi)(zhi)面積(ji)15.15萬(wan)(wan)(wan)畝(mu)(mu)，總產(chan)(chan)量(liang)1624萬(wan)(wan)(wan)千(qian)(qian)克(ke)。1992年(nian)(nian)(nian)(nian)，種(zhong)(zhong)(zhong)(zhong)植(zhi)(zhi)(zhi)面積(ji)52.8萬(wan)(wan)(wan)畝(mu)(mu)，收(shou)購量(liang)8201萬(wan)(wan)(wan)千(qian)(qian)克(ke)。進(jin)入(ru)(ru)新世紀后(hou)，玉(yu)(yu)(yu)(yu)溪(xi)(xi)(xi)煙(yan)(yan)(yan)(yan)(yan)(yan)(yan)草快速發(fa)展(zhan)，2009年(nian)(nian)(nian)(nian)，全(quan)市(shi)烤(kao)(kao)煙(yan)(yan)(yan)(yan)(yan)(yan)(yan)種(zhong)(zhong)(zhong)(zhong)植(zhi)(zhi)(zhi)面積(ji)70萬(wan)(wan)(wan)畝(mu)(mu)、產(chan)(chan)量(liang)10400萬(wan)(wan)(wan)千(qian)(qian)克(ke)，產(chan)(chan)值16億元。烤(kao)(kao)煙(yan)(yan)(yan)(yan)(yan)(yan)(yan)種(zhong)(zhong)(zhong)(zhong)植(zhi)(zhi)(zhi)成(cheng)為(wei)當地農民(min)最大的(de)(de)經(jing)濟(ji)來源。同時(shi)，玉(yu)(yu)(yu)(yu)溪(xi)(xi)(xi)煙(yan)(yan)(yan)(yan)(yan)(yan)(yan)葉(xie)是(shi)紅(hong)(hong)塔(ta)煙(yan)(yan)(yan)(yan)(yan)(yan)(yan)草（集團(tuan)）有限(xian)責任公(gong)司生(sheng)產(chan)(chan)中高檔中式卷(juan)煙(yan)(yan)(yan)(yan)(yan)(yan)(yan)的(de)(de)主(zhu)要(yao)原(yuan)料(liao)，伴隨“紅(hong)(hong)塔(ta)山”卷(juan)煙(yan)(yan)(yan)(yan)(yan)(yan)(yan)品(pin)(pin)牌的(de)(de)發(fa)展(zhan)，玉(yu)(yu)(yu)(yu)溪(xi)(xi)(xi)煙(yan)(yan)(yan)(yan)(yan)(yan)(yan)葉(xie)香飄四海(hai)。玉(yu)(yu)(yu)(yu)溪(xi)(xi)(xi)煙(yan)(yan)(yan)(yan)(yan)(yan)(yan)葉(xie)主(zhu)栽品(pin)(pin)種(zhong)(zhong)(zhong)(zhong)為(wei)K326、紅(hong)(hong)花大金(jin)元。民(min)國(guo)(guo)35年(nian)(nian)(nian)(nian)（1946年(nian)(nian)(nian)(nian)），玉(yu)(yu)(yu)(yu)溪(xi)(xi)(xi)煙(yan)(yan)(yan)(yan)(yan)(yan)(yan)草改進(jin)所從美國(guo)(guo)引(yin)進(jin)“大金(jin)元”品(pin)(pin)種(zhong)(zhong)(zhong)(zhong)，之后(hou)在(zai)全(quan)市(shi)推(tui)廣種(zhong)(zhong)(zhong)(zhong)植(zhi)(zhi)(zhi)。1953年(nian)(nian)(nian)(nian)后(hou)，在(zai)玉(yu)(yu)(yu)(yu)溪(xi)(xi)(xi)煙(yan)(yan)(yan)(yan)(yan)(yan)(yan)農和(he)科技人(ren)員的(de)(de)共同努力(li)下，培育(yu)了多(duo)個(ge)多(duo)葉(xie)煙(yan)(yan)(yan)(yan)(yan)(yan)(yan)類型(xing)的(de)(de)大金(jin)元衍(yan)生(sheng)種(zhong)(zhong)(zhong)(zhong)。1968年(nian)(nian)(nian)(nian)，玉(yu)(yu)(yu)(yu)溪(xi)(xi)(xi)專區(qu)煙(yan)(yan)(yan)(yan)(yan)(yan)(yan)葉(xie)調拔站等單位，從石林(lin)縣(xian)路(lu)美邑(yi)村引(yin)進(jin)“紅(hong)(hong)花大金(jin)元”，經(jing)對比試(shi)驗(yan)，定向選(xuan)育(yu)和(he)馴化，該(gai)品(pin)(pin)種(zhong)(zhong)(zhong)(zhong)逐步成(cheng)為(wei)玉(yu)(yu)(yu)(yu)溪(xi)(xi)(xi)煙(yan)(yan)(yan)(yan)(yan)(yan)(yan)葉(xie)的(de)(de)當家品(pin)(pin)種(zhong)(zhong)(zhong)(zhong)，目前種(zhong)(zhong)(zhong)(zhong)植(zhi)(zhi)(zhi)面積(ji)達10萬(wan)(wan)(wan)畝(mu)(mu)，產(chan)(chan)量(liang)1000萬(wan)(wan)(wan)千(qian)(qian)克(ke)。1987年(nian)(nian)(nian)(nian)，玉(yu)(yu)(yu)(yu)溪(xi)(xi)(xi)地區(qu)煙(yan)(yan)(yan)(yan)(yan)(yan)(yan)草公(gong)司煙(yan)(yan)(yan)(yan)(yan)(yan)(yan)科所引(yin)進(jin)美國(guo)(guo)烤(kao)(kao)煙(yan)(yan)(yan)(yan)(yan)(yan)(yan)主(zhu)要(yao)推(tui)廣品(pin)(pin)種(zhong)(zhong)(zhong)(zhong)K326，在(zai)全(quan)市(shi)進(jin)行(xing)多(duo)點(dian)(dian)試(shi)種(zhong)(zhong)(zhong)(zhong)、篩選(xuan)，經(jing)過多(duo)年(nian)(nian)(nian)(nian)選(xuan)育(yu)、馴化、改良，由于(yu)其具有優(you)質、適產(chan)(chan)、適應性廣等優(you)點(dian)(dian)，種(zhong)(zhong)(zhong)(zhong)植(zhi)(zhi)(zhi)面積(ji)擴展(zhan)迅速，目前種(zhong)(zhong)(zhong)(zhong)植(zhi)(zhi)(zhi)面積(ji)達50萬(wan)(wan)(wan)畝(mu)(mu)，產(chan)(chan)量(liang)7800萬(wan)(wan)(wan)千(qian)(qian)克(ke)，成(cheng)為(wei)玉(yu)(yu)(yu)(yu)溪(xi)(xi)(xi)煙(yan)(yan)(yan)(yan)(yan)(yan)(yan)葉(xie)的(de)(de)主(zhu)要(yao)栽培品(pin)(pin)種(zhong)(zhong)(zhong)(zhong)。

三.地域范圍

玉溪(xi)(xi)市(shi)(shi)(shi)(shi)位于云南(nan)(nan)省中(zhong)部，北緯23°19′～24°53′、東經(jing)101°16′～103°09′之(zhi)間(jian)，南(nan)(nan)北長(chang)163.5公(gong)里(li)，東西寬172公(gong)里(li)。東北接昆明市(shi)(shi)(shi)(shi)，東南(nan)(nan)鄰紅(hong)河(he)州(zhou)，西南(nan)(nan)連(lian)普洱(er)市(shi)(shi)(shi)(shi)，西北靠楚雄州(zhou)。全市(shi)(shi)(shi)(shi)轄(xia)紅(hong)塔區(qu)、江(jiang)川縣(xian)(xian)、澄江(jiang)市(shi)(shi)(shi)(shi)、通海縣(xian)(xian)、華寧縣(xian)(xian)、易門(men)縣(xian)(xian)、峨山(shan)縣(xian)(xian)、新平(ping)(ping)縣(xian)(xian)、元(yuan)江(jiang)縣(xian)(xian)等一區(qu)八縣(xian)(xian)，共(gong)設(she)80個鄉(xiang)鎮(zhen)、辦事處，657個村、居民(min)委員會，國(guo)土面(mian)積15285萬(wan)平(ping)(ping)方(fang)公(gong)里(li)。 玉溪(xi)(xi)煙(yan)葉農產品地(di)理(li)標(biao)志地(di)保護范圍(wei)為玉溪(xi)(xi)市(shi)(shi)(shi)(shi)一區(qu)八縣(xian)(xian)海拔1300～1900米之(zhi)間(jian)的平(ping)(ping)壩、低中(zhong)山(shan)地(di)帶和中(zhong)山(shan)地(di)帶，共(gong)計68個鄉(xiang)鎮(zhen)，保護面(mian)積260萬(wan)畝，其中(zhong)50畝連(lian)片(pian)的面(mian)積有236萬(wan)畝，年(nian)生(sheng)產能力300萬(wan)擔。玉溪(xi)(xi)市(shi)(shi)(shi)(shi)是我國(guo)的優質煙(yan)葉主產區(qu)和中(zhong)式(shi)中(zhong)高(gao)檔卷煙(yan)的主要(yao)原(yuan)料基地(di)，也是國(guo)內(nei)最具(ju)開(kai)發價值的優質烤煙(yan)核(he)心(xin)產地(di)，被(bei)譽為“云煙(yan)之(zhi)鄉(xiang)”。

四.產品品質特性特征

1、外在(zai)感官特征：1.1、鮮煙(yan)葉(xie)(xie)(xie)(xie)(xie)。株(zhu)(zhu)高適(shi)(shi)中，有(you)(you)(you)效葉(xie)(xie)(xie)(xie)(xie)片(pian)(pian)(pian)多，單葉(xie)(xie)(xie)(xie)(xie)較重(zhong)(zhong)。煙(yan)株(zhu)(zhu)進(jin)入成熟(shu)期后(hou)，整(zheng)株(zhu)(zhu)葉(xie)(xie)(xie)(xie)(xie)片(pian)(pian)(pian)由下(xia)而上(shang)逐(zhu)漸為綠黃色(se)(se)或黃綠色(se)(se)，分層(ceng)落(luo)黃明(ming)顯(xian)，易把握成熟(shu)度和便于適(shi)(shi)時采摘烘烤調制。玉溪煙(yan)葉(xie)(xie)(xie)(xie)(xie)株(zhu)(zhu)高90-120cm，有(you)(you)(you)效葉(xie)(xie)(xie)(xie)(xie)片(pian)(pian)(pian)因(yin)品種不(bu)同稍有(you)(you)(you)差異：“紅花(hua)大金(jin)元”16-20片(pian)(pian)(pian)，“K326”18-22片(pian)(pian)(pian)。葉(xie)(xie)(xie)(xie)(xie)片(pian)(pian)(pian)大小：下(xia)、中、上(shang)部位略(lve)有(you)(you)(you)差異：一般下(xia)部葉(xie)(xie)(xie)(xie)(xie)長(chang)55-65cm，寬(kuan)25-35cm，葉(xie)(xie)(xie)(xie)(xie)厚220-280μm ；中部葉(xie)(xie)(xie)(xie)(xie)長(chang)65-75cm，寬(kuan)23-30cm，葉(xie)(xie)(xie)(xie)(xie)厚270-330μm ；上(shang)部葉(xie)(xie)(xie)(xie)(xie)長(chang)50-60cm，寬(kuan)16-22cm，葉(xie)(xie)(xie)(xie)(xie)厚300-350μm 。1.2、烤煙(yan)。外觀質量(liang)符合GB2635中正組(zu)煙(yan)的要求，葉(xie)(xie)(xie)(xie)(xie)片(pian)(pian)(pian)成熟(shu)，顏色(se)(se)金(jin)黃至桔黃，以桔黃為主；色(se)(se)度飽和，厚薄適(shi)(shi)中，富油潤；葉(xie)(xie)(xie)(xie)(xie)片(pian)(pian)(pian)組(zu)織結構(gou)疏(shu)松、柔軟、彈性好。單葉(xie)(xie)(xie)(xie)(xie)重(zhong)(zhong)：下(xia)部葉(xie)(xie)(xie)(xie)(xie)6-8g，中部葉(xie)(xie)(xie)(xie)(xie)8-10g，上(shang)部葉(xie)(xie)(xie)(xie)(xie)7-9g。

2、內(nei)(nei)在品(pin)質：指標玉溪(xi)煙葉內(nei)(nei)含化學成份協調，總糖(tang)(tang)、還原糖(tang)(tang)比國內(nei)(nei)其它煙區高而具(ju)特色，具(ju)有(you)清(qing)新飄逸、清(qing)甜(tian)(tian)優雅、豐富飽(bao)滿(man)、圓潤細膩的(de)風格特征，刺激(ji)較小、雜氣輕、回(hui)味舒適、生(sheng)津(jin)回(hui)甜(tian)(tian)，燃燒(shao)較好，與國內(nei)(nei)外產區煙葉有(you)良好的(de)配(pei)伍性(xing)，工業可(ke)用性(xing)高，是中式(shi)中、高檔(dang)卷煙的(de)必備原料。

3、安(an)全(quan)要求(qiu)：農藥殘留：符合《DB53/T182.2-2006 玉(yu)溪優質烤煙(yan)質量(liang)要求(qiu)》的(de)規定。