病bing毒du病bing是shi草cao莓mei的de重zhong要yao病bing害hai,用yong藥yao防fang治zhi效xiao果guo差cha,選xuan用yong脫tuo毒du草cao莓mei苗miao栽zai培pei是shi防fang病bing的de關guan鍵jian。生sheng產chan實shi踐jian表biao明ming,脫tuo毒du苗miao不bu僅jin長chang勢shi旺wang盛sheng,而er且qie產chan量liang和he品pin質zhi明ming顯xian提ti高gao。據測定,與帶毒苗相比,脫毒苗株高增加17.7-46.2%,開展度增加49-76.6%,葉柄長增加14.5-41.9%,匍匐莖數量增加26.7-89.5%,第一花序結果量增加21.1-36.1%,單果重增加1.6-24.1%,可溶性固形物含量提高13-15.3%。
脫毒草莓苗生長特點與帶毒苗有一定差異,采取與之相適應的措施栽培,有利於充分發揮其優勢,確保高產優質。⑴脫毒苗吸肥力強,耐肥,但育苗期花芽分化前一般不宜施追肥,以免花芽分化期推遲。必要時可采取斷根、剝老葉等措施調節體內碳氮比,使花芽分化期提前。生長期不要過量施肥,以免植株旺長影響坐果。⑵脫毒苗粗壯高大,應適當稀植。⑶脫tuo毒du苗miao開kai花hua期qi有you所suo延yan遲chi,采cai收shou期qi也ye相xiang應ying推tui遲chi,但dan早zao期qi產chan量liang和he總zong產chan量liang仍reng比bi帶dai毒du苗miao高gao。由you於yu花hua序xu上shang著zhe果guo數shu增zeng多duo,應ying注zhu意yi適shi度du疏shu花hua疏shu果guo,促cu進jin大da果guo形xing成cheng。
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