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作 者:吕海燕[1] 李大卫[1] 费早霞 钟彩虹[1] LYU Hai-yan;LI Da-wei;FEI Zao-xia;ZHONG Cai-hong(Wuhan Botanical Garden,Chinese Academy of Sciences/Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture,Chinese Academy of Sciences,Wuhan 430074,China)
机构地区:[1]中国科学院武汉植物园/中国科学院植物种质创新与特色农业重点实验室,武汉430074
出 处:《湖北农业科学》2024年第5期61-64,共4页Hubei Agricultural Sciences
基 金:湖北省重点研发项目(2021BBA100)。
摘 要:以中科猕砧2号猕猴桃2月龄组培苗为研究对象,研究不同配比的叶面施肥结合株型控制对植株干径生长、叶绿素含量、氮磷钾含量以及幼苗生理指标的影响。结果表明,中科猕砧2号组培穴盘苗的干径、叶绿素含量及植株全氮、全钾含量,根冠比在不同处理间均存在显著差异,植株全磷含量在各处理间差异不显著。4个控制因子中,株型控制对中科猕砧2号组培穴盘苗生长的促进作用最大,全抹芽的株型控制+施复合叶面肥(0.2%尿素+0.1%磷酸二氢钾+0.2%园艺肥)为中科猕砧2号组培穴盘苗育苗期间的最优处理配方。Two-month-old tissue culture plantlets of Zhongke Mizhen No.2 were used to study the effects of different proportions of fo-liar fertilization combined with plant type control on stem diameter growth,chlorophyll content,nitrogen,phosphorus and potassium content,and seedling physiological indicators.The results showed that stem diameter,chlorophyll content,total nitrogen and potassi-um contents and root-to-shoot ratio were significantly different among different treatments,while total plant phosphorus content was not significantly different among treatments.Among the four control factors,plant type control had the greatest promoting effect on the growth of tissue-cultured seedlings of Zhongke Mizhen No.2.The optimum treatment formula for Zhongke Mizhen No.2 was plant type control combined with application of compound foliar fertilizer(0.2%urea+0.1%monopotassium phosphate+0.2%horticultural fer-tilizer).
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