板栗在商品中被列為幹果,一般認為比其它水果耐貯藏,而實際上並非如此。生產中往往因貯藏條件不適和管理不當,造成失重、腐fu爛lan或huo發fa芽ya。從cong生sheng理li上shang看kan,采cai收shou後hou的de栗li果guo,仍reng然ran是shi一yi個ge活huo的de有you機ji體ti,新xin陳chen代dai謝xie作zuo用yong仍reng在zai繼ji續xu進jin行xing,不bu同tong的de是shi栗li果guo不bu能neng再zai從cong樹shu體ti上shang得de到dao水shui分fen和he其qi它ta營ying養yang物wu質zhi的de供gong給gei,而er是shi不bu斷duan地di失shi去qu自zi身shen水shui分fen並bing逐zhu漸jian消xiao耗hao在zai生sheng長chang過guo程cheng中zhong所suo積ji累lei的de各ge種zhong物wu質zhi,以yi供gong給gei其qi生sheng命ming活huo動dong所suo需xu要yao的de能neng量liang。實shi踐jian證zheng明ming,栗li果guo在zai貯zhu藏zang中zhong有you“四怕”,既怕幹、怕水、怕熱、怕凍,特別不能像其它幹果那樣曬幹貯藏。
影響栗實黴爛的因素很多,這些因素與栗實的生理活動等密切有關,它們的相互關係如下:
堆積貯藏 不成熟栗果 采後風幹 病菌侵入
↓ ↓ ↓ ↓
栗實→貯藏溫度高<=>呼吸強度異常增高→生理病害→失去生命力→黴爛
↑ ↑ ↑ ↑
不通氣 栗實濕度過大 貯藏時失水 腐生菌
我國大部分栗實成熟時正值高溫季節,在貯藏過程中如栗實堆積過多,不通氣即能引起溫度過高;栗果不成熟,則延遲進入休眠狀態,濕度過大會使呼吸作用增高;lishizaigaowendeqingkuangxia,bunengzhengchangjinruxiumianzhuangtai,chanshengshenglibinghai,lingwai,caishouhoufengganhezhuzangqijianshishuihantangliangyichangzengjia,chanshengshenglibinghai,shilishishenghuolijiangdi,congershiquleduigezhongjishengjundedikangli,fashengfushengjunjisheng,shilishibianzhifulan。danshiyouxieliguoshizaicaishouqianyiyoubingjunhuohaichongqinru,caishoushihuocaishouhouliguowaibiaokanbuchubingzheng,zaishuizhongyebupiaofu,danshineibulirouyouhuiheisebingban,shiyongshiyoukuwei,zhejiuxuyaozaichanqianjishiduibingchonghaijinxingfangzhi。banlizhuzangxiaoguodehaohuai,shouxianqujueyubanlidezhiliang,qicicaishizhuzangdejishufangfa。weici,zaixuanhaozhuzangpinzhongdejichushang,zhuzangqianbiyangebahaoqidaoguankoucainengquebaobanlililinaizhuzang。shouxian,yaorangbanlizaishushangziranchongfenchengshu,zongbaozirankailie,dailishixialuohoujishishoushi;其次,如用竹竿擊苞采收,須待2/3yishangguobaokailieqiejingjigeqingtianzhihou,yuchenluganhoushouhuo。disan,zhuangxieyunshuguochengyaojinliangjianshaojixiesunshang,yibaochiguokedewanhao。disi,baoxianqianxianjiangbanlizaishineitankaifangzhi1天-2天,讓板栗散發過多的水分,使之失重10%左右再轉入保鮮處理。第五,在攤開散發過多水分的過程中,要逐粒精選,剔除病蟲粒、癟嫩粒和果殼機械損傷嚴重或帶汙褐斑的子籽,選留子粒飽滿、顆大粒重、殼色深老、略(lve)帶(dai)光(guang)澤(ze)的(de)健(jian)壯(zhuang)子(zi)粒(li),然(ran)後(hou)再(zai)用(yong)清(qing)水(shui)洗(xi)淨(jing),置(zhi)缸(gang)內(nei)進(jin)行(xing)水(shui)選(xuan),以(yi)去(qu)掉(diao)浮(fu)於(yu)水(shui)麵(mian)或(huo)半(ban)沉(chen)半(ban)浮(fu)於(yu)水(shui)中(zhong)的(de)子(zi)粒(li),保(bao)留(liu)沉(chen)沒(mei)於(yu)缸(gang)底(di)的(de)子(zi)粒(li)供(gong)保(bao)鮮(xian)之(zhi)用(yong)。第(di)六(liu),板(ban)栗(li)在(zai)藏(zang)前(qian)要(yao)進(jin)行(xing)防(fang)蟲(chong)、防腐、防發芽處理。防蟲處理一般在塑料帳或密閉庫內用溴甲烷熏蒸,用藥量按每立方米空間40克-50克,熏3小時-10小時;防腐處理一用0.05%2.4-D加5000倍托布津水溶液浸栗果3分鍾;防止發芽則可選用100毫克/升的奈乙酸水溶液作浸果處理。最後,認真搞好板栗庫或貯藏場所的消毒工作,嚴防貯藏間病蟲危害。
230001 安徽省林業廳宣傳站 李鵬翔
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