番茄裂果是夏秋季大棚番茄比較常見的生理性病害,多發生在果實轉色期。根據發生部位和形態可分為3種zhong。第di一yi種zhong是shi放fang射she狀zhuang裂lie果guo。這zhe種zhong類lei型xing的de裂lie果guo以yi果guo蒂di為wei中zhong心xin,向xiang果guo肩jian延yan伸shen,呈cheng放fang射she狀zhuang深shen裂lie,從cong果guo實shi綠lv熟shu期qi開kai始shi發fa生sheng,在zai果guo蒂di附fu近jin產chan生sheng細xi微wei的de條tiao紋wen開kai裂lie,轉zhuan色se前qian2~3tianliehenmingxian。dierzhongshihuanzhuanglieguo。zhezhongleixingdelieguoyiguodiweiyuanxin,chenghuanzhuangqianlie,duozaiguoshichengshushichuxian。disanzhongshitiaowenzhuanglieguo。zhezhongleixingdelieguochuxianzaiguodinghuahenbu,chengbuguizetiaowenzhuangkailie。
番茄裂果的原因,主要是在果實發育後期或轉色期遇強光照射、gaowenganhanhuobaoyudengbulianghuanjingtiaojian,guopishengchangyuguorouzuzhipengdasudubutongbu,guoshipengyazengda,chuxianlieguo。tebieshiyuzhenyuhuobaoyu,shizhizhugenxichuxianshenglijinengzhangai,yingxiangshuifenjiyangfendexishouheyunzhuan,yichanshenglieguo。zhizhudadingguozhong,guoshizaiqiangliedeyangguangxiabaoshaihouturanjiaoshui,yerongyichanshenglieguo。fanqielieguohaiyupinzhongyouguanxi,guopibodepinzhongrongyilieguo,guopihoudepinzhongbuyilieguo。queshaogai、硼等微量元素會導致番茄果麵出現木栓狀龜裂。
防止番茄裂果,首先應選用抗裂性強的品種。生產上應用的中蔬6號、毛粉802、紅瑪瑙140、紅雜16dengpinzhongkangliexingqiang,keyindizhiyidixuanyong。qici,yaojiaqiangtianjianguanli。shishishidujiaoguanshui,bimianturangguoganhuoguoshi,huohuganhushi。yuhoujishiqinggoupaizijiangshi。zengshiyoujifeihezhilianghaodeshengwufei,gaishanturangjiegou,weigenxishengchangtigonglianghaodehuanjingtiaojian。jingchangpenshigai、硼peng等deng微wei量liang元yuan素su肥fei料liao。整zheng枝zhi打da杈cha要yao適shi度du,保bao持chi植zhi株zhu有you茂mao盛sheng的de葉ye片pian,加jia強qiang植zhi株zhu體ti內nei多duo餘yu水shui分fen的de蒸zheng騰teng,避bi免mian養yang分fen集ji中zhong供gong應ying果guo實shi造zao成cheng裂lie果guo。正zheng確que使shi用yong植zhi物wu生sheng長chang調tiao節jie劑ji,在zai使shi用yong激ji素su噴pen花hua時shi濃nong度du不bu能neng過guo大da,要yao針zhen對dui品pin種zhong和he溫wen度du合he理li確que定ding使shi用yong濃nong度du。在zai果guo實shi膨peng大da期qi適shi時shi噴pen施shi氯lv化hua鈣gai、硫酸鋅等葉麵肥,有利於改善植株營養狀況,增強果實抗裂能力。噴施27%高脂膜乳劑100倍液,對減少裂果也有一定作用。
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