芒果视频下载

羅(luo)(luo)田(tian)甜(tian)柿(shi)(shi)，指中國湖北省大別山區羅(luo)(luo)田(tian)縣產的(de)(de)甜(tian)柿(shi)(shi)，是(shi)中國地(di)理標志(zhi)產品(pin)。羅(luo)(luo)田(tian)為"中國甜(tian)柿(shi)(shi)之(zhi)鄉(xiang)"。羅(luo)(luo)田(tian)甜(tian)柿(shi)(shi)是(shi)世(shi)界唯一自然脫澀(se)的(de)(de)甜(tian)柿(shi)(shi)品(pin)種，秋天成熟后，不(bu)需加工(gong)，可(ke)直接食用。羅(luo)(luo)田(tian)縣三(san)里畈鎮鏨字(zi)石村出(chu)產的(de)(de)甜(tian)柿(shi)(shi)更(geng)(geng)是(shi)珍品(pin)，其特點是(shi)個大色艷，身(shen)圓底方(fang)，皮薄肉厚，甜(tian)脆可(ke)口。別的(de)(de)地(di)方(fang)出(chu)產的(de)(de)甜(tian)柿(shi)(shi)一般(ban)有(you)籽粒八顆以(yi)上，而(er)鏨子石甜(tian)柿(shi)(shi)不(bu)超(chao)過三(san)顆籽，所以(yi)既(ji)方(fang)便食用，更(geng)(geng)方(fang)便加工(gong)。

產地環境

羅(luo)(luo)田(tian)(tian)縣位(wei)于(yu)大別山南(nan)麓，總面積321萬畝，屬亞(ya)熱帶季(ji)風(feng)區，氣(qi)候(hou)溫和，陽(yang)光充足(zu)，雨量充沛，光水(shui)熱同步，自(zi)(zi)然條(tiao)件(jian)很好。年平均溫度16.4℃，降雨量1300-1600毫米，無霜(shuang)期(qi)(qi)181-231天(tian)，極為適宜(yi)甜(tian)(tian)(tian)柿(shi)(shi)(shi)(shi)生(sheng)長(chang)(chang)(chang)發育要求。羅(luo)(luo)田(tian)(tian)不僅具有(you)(you)適宜(yi)甜(tian)(tian)(tian)柿(shi)(shi)(shi)(shi)生(sheng)長(chang)(chang)(chang)發育的(de)基本氣(qi)候(hou)條(tiao)件(jian)，而(er)且由于(yu)地(di)(di)(di)勢(shi)(shi)、地(di)(di)(di)形(xing)(xing)、地(di)(di)(di)貌和森(sen)林植(zhi)被的(de)自(zi)(zi)然調節作用，形(xing)(xing)成(cheng)更具獨特(te)優(you)(you)勢(shi)(shi)的(de)區域環境。一是(shi)(shi)(shi)地(di)(di)(di)勢(shi)(shi)北高(gao)南(nan)低(di)，對(dui)氣(qi)候(hou)資源可以(yi)進行(xing)再分配，自(zi)(zi)行(xing)調節，使(shi)甜(tian)(tian)(tian)柿(shi)(shi)(shi)(shi)生(sheng)長(chang)(chang)(chang)發育期(qi)(qi)內溫室巨變(bian)較小。二是(shi)(shi)(shi)地(di)(di)(di)形(xing)(xing)地(di)(di)(di)貌差異(yi)大，小氣(qi)候(hou)小環境較多(duo)，適宜(yi)栽(zai)植(zhi)甜(tian)(tian)(tian)柿(shi)(shi)(shi)(shi)的(de)面積大。三是(shi)(shi)(shi)森(sen)林覆(fu)蓋率(lv)高(gao)，達到68.8%，植(zhi)被條(tiao)件(jian)好，自(zi)(zi)然生(sheng)態優(you)(you)良(liang)，對(dui)提高(gao)甜(tian)(tian)(tian)柿(shi)(shi)(shi)(shi)果(guo)實(shi)光澤，降低(di)果(guo)皮厚度都十分有(you)(you)利(li)(li)。四是(shi)(shi)(shi)晝夜溫差大，有(you)(you)利(li)(li)于(yu)果(guo)實(shi)的(de)形(xing)(xing)成(cheng)。羅(luo)(luo)田(tian)(tian)柿(shi)(shi)(shi)(shi)產(chan)(chan)區溫差比平原(yuan)(yuan)地(di)(di)(di)區要大，甜(tian)(tian)(tian)柿(shi)(shi)(shi)(shi)果(guo)實(shi)膨大成(cheng)熟期(qi)(qi)為7-9月，其晝夜溫差一般都在10℃以(yi)上，比平原(yuan)(yuan)大4℃以(yi)上，這(zhe)對(dui)柿(shi)(shi)(shi)(shi)果(guo)糖分轉化和營養積累極為有(you)(you)利(li)(li)，是(shi)(shi)(shi)羅(luo)(luo)田(tian)(tian)甜(tian)(tian)(tian)柿(shi)(shi)(shi)(shi)品質優(you)(you)良(liang)、味道鮮(xian)美(mei)的(de)一個重要原(yuan)(yuan)因(yin)。五是(shi)(shi)(shi)土(tu)壤(rang)適宜(yi)甜(tian)(tian)(tian)柿(shi)(shi)(shi)(shi)生(sheng)長(chang)(chang)(chang)，羅(luo)(luo)田(tian)(tian)土(tu)壤(rang)多(duo)為片麻巖(yan)風(feng)化形(xing)(xing)成(cheng)的(de)沙壤(rang)土(tu)，透水(shui)、通氣(qi)性(xing)能(neng)良(liang)好，微酸性(xing)和中性(xing)，有(you)(you)利(li)(li)于(yu)柿(shi)(shi)(shi)(shi)樹根(gen)系(xi)生(sheng)長(chang)(chang)(chang)，柿(shi)(shi)(shi)(shi)樹壽命(ming)長(chang)(chang)(chang)，盛果(guo)期(qi)(qi)長(chang)(chang)(chang)，豐(feng)產(chan)(chan)性(xing)好。

主要品種

羅田(tian)(tian)甜(tian)(tian)柿(shi)是羅田(tian)(tian)當地(di)原生(sheng)(sheng)(sheng)甜(tian)(tian)柿(shi)品(pin)(pin)(pin)種(zhong)的(de)(de)總稱，在(zai)長(chang)(chang)(chang)期(qi)的(de)(de)自然變異進(jin)化(hua)和(he)人工(gong)栽培選(xuan)擇過程中，逐漸形(xing)成了(le)很多各具特(te)色的(de)(de)優良品(pin)(pin)(pin)種(zhong)。具有(you)栽培價(jia)值的(de)(de)地(di)方品(pin)(pin)(pin)種(zhong)有(you)20多個，大(da)、中、小果(guo)型(xing)(xing)品(pin)(pin)(pin)種(zhong)和(he)早、中、晚熟品(pin)(pin)(pin)種(zhong)兼備(bei)，還(huan)有(you)育苗采籽(zi)專用品(pin)(pin)(pin)種(zhong)和(he)單(dan)雄性(xing)授(shou)粉樹(shu)品(pin)(pin)(pin)種(zhong)，品(pin)(pin)(pin)種(zhong)資(zi)源極為豐(feng)(feng)富(fu)，其主要品(pin)(pin)(pin)種(zhong)有(you):羅田(tian)(tian)甜(tian)(tian)柿(shi)、秋焰甜(tian)(tian)柿(shi)(寶華、鄂柿(shi)1號(hao)、陰陽柿(shi))、寶蓋甜(tian)(tian)柿(shi)、四方甜(tian)(tian)柿(shi)、小果(guo)甜(tian)(tian)柿(shi)、龍爪柿(shi)、金秋甜(tian)(tian)柿(shi)、蜜糖柿(shi)。這(zhe)些品(pin)(pin)(pin)種(zhong)的(de)(de)共同特(te)點(dian)是果(guo)實含有(you)可溶性(xing)單(dan)寧低(di)，不需人工(gong)脫(tuo)澀，不復生(sheng)(sheng)(sheng)返(fan)澀;果(guo)皮(pi)薄，皮(pi)色橙紅光(guang)亮，外(wai)表美觀(guan)亮麗;果(guo)肉(rou)甜(tian)(tian)脆(cui)細膩，含糖量在(zai)17-26%之間(jian)，味甜(tian)(tian)可口;果(guo)內無(wu)(wu)黑斑，無(wu)(wu)果(guo)心(xin);果(guo)型(xing)(xing)多為扁(bian)園，無(wu)(wu)縱溝，無(wu)(wu)縊痕。此外(wai)，羅田(tian)(tian)甜(tian)(tian)柿(shi)生(sheng)(sheng)(sheng)長(chang)(chang)(chang)勢很強(qiang)，分枝(zhi)能力(li)很旺，樹(shu)冠(guan)(guan)(guan)形(xing)成快，側枝(zhi)分生(sheng)(sheng)(sheng)多，葉(xie)片肥(fei)大(da)，葉(xie)色濃綠(lv)，葉(xie)肉(rou)厚實，光(guang)合(he)作用能力(li)強(qiang)，結(jie)實早，豐(feng)(feng)產性(xing)能好，根(gen)系(xi)發(fa)達，主根(gen)較深(shen)，側根(gen)特(te)別長(chang)(chang)(chang)，一(yi)(yi)般(ban)側根(gen)為樹(shu)冠(guan)(guan)(guan)的(de)(de)2倍，有(you)的(de)(de)散(san)生(sheng)(sheng)(sheng)大(da)樹(shu)側根(gen)可達樹(shu)冠(guan)(guan)(guan)的(de)(de)6-7倍。由于根(gen)系(xi)發(fa)達，生(sheng)(sheng)(sheng)長(chang)(chang)(chang)旺盛(sheng)(sheng)，因而羅田(tian)(tian)甜(tian)(tian)柿(shi)抗逆性(xing)強(qiang)，耐瘠、耐旱、耐漬、耐寒，病蟲害少，適應性(xing)廣，生(sheng)(sheng)(sheng)長(chang)(chang)(chang)壽(shou)命長(chang)(chang)(chang)，盛(sheng)(sheng)果(guo)期(qi)也(ye)很長(chang)(chang)(chang)。根(gen)據(ju)資(zi)料記載(zai)和(he)羅田(tian)(tian)林業部門調查，一(yi)(yi)般(ban)壽(shou)命多在(zai)400年左右，盛(sheng)(sheng)果(guo)期(qi)約在(zai)100年以上。這(zhe)些豐(feng)(feng)富(fu)的(de)(de)品(pin)(pin)(pin)種(zhong)資(zi)源，是羅田(tian)(tian)縣發(fa)展羅田(tian)(tian)甜(tian)(tian)柿(shi)的(de)(de)獨有(you)優勢和(he)重(zhong)要物(wu)質基礎。