huahui,youqishixianqiehua,caihouweilebaochizuihaodepinzhi,yanhuanshuailao,dikangwaijiehuanjingdebianhua,changchangcaiyonghuahuibaoxianjiyuyichuli。huahuibaoxianjibaokuoyibanbaoxianye、水合液、脈衝液、STS脈衝液、花蕾開放液和瓶插保持液等。在采後處理的各個環節,從栽培到批發、零售、消費、都可以使用花卉保鮮劑。許多切花經保鮮處理後,可延長花卉壽命2倍。花卉保鮮劑能使花朵增大,保持葉片和花瓣的色澤,從而提高花卉品質。
大部分商業性保鮮劑都含有碳水化合物、殺菌劑、乙烯抑製劑、生長調節劑和礦物質營養成分,下麵分別詳述它們的作用。
碳水化合物:shiqiehuadezhuyaoyingyangyuanhenenglianglaiyuan,tanengweichilikaimutihoudeqiehuasuoyoushengliheshenghuaguocheng。waigongtangyuan,jiangcanyuyanchangpingchashouming,qizheweichiqiehuaxibaozhongxianlitijiegouhegongnengdezuoyong。tongguotiaojiezhengtengzuoyonghexibaoshentoucujinshuifenpingheng,zengjiashuifenxishou。zhetangshibaoxianjizhongshiyongzuiguangfandetanshuihuahewuzhiyi,guotangheputaotangyoushiyecaiyong。butongdeqiehuazhongleihuotongyizhongleibutongpinzhongzuishiyibaoxianjizhongtangdenongdubutong,ruzaihualeikaifangyezhong,shizhuzuishinongduwei10%,而菊花葉片對糖敏感,一般用2%,月季高於1.5%易yi引yin起qi葉ye片pian燒shao傷shang。最zui適shi糖tang濃nong度du還hai與yu處chu理li方fang法fa和he時shi間jian長chang短duan有you關guan,一yi般ban來lai說shuo,對dui一yi特te定ding切qie花hua,保bao鮮xian劑ji處chu理li時shi間jian越yue長chang,所suo需xu糖tang的de濃nong度du越yue低di,因yin此ci脈mai衝chong液ye(采後較短時間處理)中的糖濃度高,花蕾開放液濃度中等,而瓶插保持液糖濃度較低。
殺菌劑:在花瓶中生長的微生物種類有細菌、jiaomuhemeijun,zhexieweishengwudaliangfanzhihou,zuaihuajingdaoguan,yingxiangqiehuaxishui,bingchanshengyixiheqitayouduwuzhierjiasuqiehuashuailao。weilekongzhiweishengwushengchang,baoxianjizhongkeyijiarushajunjihuoyuqitachengfenhunyong。
乙烯抑製劑:硫代硫酸銀(STS)是(shi)目(mu)前(qian)花(hua)卉(hui)業(ye)使(shi)用(yong)最(zui)廣(guang)泛(fan)的(de)最(zui)佳(jia)乙(yi)烯(xi)抑(yi)製(zhi)劑(ji),在(zai)植(zhi)物(wu)體(ti)內(nei)有(you)較(jiao)好(hao)的(de)移(yi)動(dong)性(xing),對(dui)花(hua)朵(duo)內(nei)乙(yi)烯(xi)合(he)成(cheng)有(you)高(gao)效(xiao)抑(yi)製(zhi)作(zuo)用(yong),有(you)效(xiao)地(di)延(yan)長(chang)多(duo)種(zhong)花(hua)卉(hui)的(de)瓶(ping)插(cha)壽(shou)命(ming)。STS需隨用隨配,配好液最好立即使用,如不馬上使用應避光保存,它可在20℃的黑暗環境中保存4天。
生長調節劑:生(sheng)長(chang)調(tiao)節(jie)劑(ji)用(yong)於(yu)花(hua)卉(hui)保(bao)鮮(xian)劑(ji)中(zhong),它(ta)們(men)包(bao)括(kuo)人(ren)工(gong)合(he)成(cheng)的(de)生(sheng)長(chang)素(su)與(yu)植(zhi)物(wu)內(nei)源(yuan)激(ji)素(su)。植(zhi)物(wu)生(sheng)長(chang)調(tiao)節(jie)劑(ji)可(ke)單(dan)獨(du)使(shi)用(yong)或(huo)與(yu)其(qi)他(ta)成(cheng)分(fen)混(hun)合(he)用(yong)。它(ta)可(ke)以(yi)引(yin)起(qi)或(huo)抑(yi)製(zhi)植(zhi)物(wu)體(ti)內(nei)各(ge)種(zhong)生(sheng)理(li)和(he)生(sheng)化(hua)進(jin)程(cheng),從(cong)而(er)延(yan)緩(huan)切(qie)花(hua)的(de)衰(shuai)老(lao)過(guo)程(cheng)。其(qi)中(zhong),細(xi)胞(bao)分(fen)裂(lie)素(su)是(shi)最(zui)常(chang)用(yong)的(de),它(ta)主(zhu)要(yao)能(neng)抑(yi)製(zhi)乙(yi)烯(xi)產(chan)生(sheng),應(ying)用(yong)時(shi)可(ke)噴(pen)布(bu)或(huo)浸(jin)蘸(zhan),最(zui)適(shi)濃(nong)度(du)為(wei)10000ppm,浸蘸2分鍾即可,如時間過長,也會產生不良後果,香石竹對此處理效果最佳。
以yi上shang所suo述shu是shi花hua卉hui保bao鮮xian劑ji成cheng分fen,而er在zai實shi際ji生sheng產chan中zhong花hua卉hui保bao鮮xian主zhu要yao成cheng分fen是shi糖tang和he殺sha菌jun劑ji,有you時shi再zai增zeng加jia其qi它ta成cheng分fen。由you於yu一yi些xie切qie花hua從cong莖jing端duan和he淹yan在zai水shui中zhong的de葉ye片pian分fen泌mi出chu有you害hai物wu質zhi,會hui傷shang害hai它ta們men自zi身shen和he同tong一yi瓶ping中zhong的de其qi它ta花hua卉hui,因yin此ci每mei隔ge一yi段duan時shi間jian,應ying給gei花hua瓶ping調tiao換huan新xin鮮xian的de保bao鮮xian液ye。
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