福建农林大学学报（自然科学版）2025，Vol.54Issue(6)：747-757,11.DOI:10.13323/j.cnki.j.fafu(nat.sci.).202411038
基于光温条件确定基质栽培下切花菊的最佳灌溉水平
Determination of optimal irrigation volume of substrate-cultivated cut chrysanthemum based on light and temperature condition
摘要
Abstract
[Objective]The effect of drip irrigation volume on the growth and quality indicators of substrate-cultivated cut chrysanthe-mum was analyzed to provide guidance for its precise water management in production.[Method]Based on light and temperature pa-rameters of greenhouse,reference crop evapotranspiration(ET0)was calculated according to Penman-Monteith formula for establis-hing 5 irrigation treatments,namely I1(25%ET0),I2(50%ET0),I3(75%ET0),I4(100%ET0)and I5(125%ET0).Subsurface drip irrigation fertigation technology was utilized for the water and fertilizer supply of multi-headed cut chrysanthemum varieties'Nannong Xiaojinxing'and'Ridost White',and their growth and quality indicators under different irrigation treatments were meas-ured and comprehensively evaluated with factor analysis.[Result]Different irrigation treatments exerted varying degrees of influences on the growth and quality indicators of the 2 cultivars,except the leaf number per plant of both cultivars,underground fresh weight of'Ridost White'and flower number of'Nannong Xiaojinxing'.For'Nannong Xiaojinxing',I4 group had the optimal bud diame-ter,and significantly larger leaf area per plant compared to I1 group;the plant heights of I3-I5 groups were significantly higher than those of I1-I2 groups;and the stem diameters of I2-I5 groups were significantly greater than that of I1 group.For'Ridost White',I4 group had the optimal plant height,significantly greater stem fresh weight in comparison to I1-I2 groups,and significantly higher un-derground dry weight than I1-I3 groups;I5 group had significantly larger leaf area per plant than I1 group,significantly higher leaf dry weight than I1-I3 groups,and significantly greater flower fresh weight and flower dry weight than I1-I2 groups;the stem dry weights of I4-I5 groups were significantly greater than those of I1-I2 groups.Factor analysis revealed that the 2 cultivars were differ-ent in water requirements,and I1 and I2 provided insufficient water for both cultivars.For'Nannong Xiaojinxing',the optimal irri-gation was I4,followed by I3,while I5 supplied excessive water.For'Ridost White',the optimal irrigation was I4,followed by I5,while I3 led to insufficient water supply.[Conclusion]The optimal irrigation volume for'Nannong Xiaojinxing'during the entire growth period was 100%ET0,followed by 75%ET0;the optimal irrigation volume for'Ridost White'was 100%ET0,followed by 125%ET0.关键词
切花菊/滴灌/生长与品质/参考作物蒸散量/需水量Key words
cut chrysanthemum/drip irrigation/growth and quality/reference crop evapotranspiration/water requirement分类
园艺学与植物营养学引用本文复制引用
郑宇晨,管志勇,李莹莹,刘化毫,黄武舞,薛建平,刘敏荣,高波,房伟民,陈发棣..基于光温条件确定基质栽培下切花菊的最佳灌溉水平[J].福建农林大学学报（自然科学版）,2025,54(6):747-757,11.基金项目
国家重点研发项目(YFD20201000400) （YFD20201000400）
江苏省农业科技自主创新项目(CX(21)2004). （CX(21）
