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      2. 基質栽培中營養液配方對草莓生長、光合特性及品質的影響
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        國家科技支撐計劃項目 (2008BAD92B04)和湖北省自然科學基金重點項目(2009CDA097)


        Effects of nutrient solution in soilless cultivation on plant growth,photosynthetic characteristics and fruit quality of strawberry
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          摘要:

          研究3種營養液配方對草莓植株生長、光合特性、產量及品質的影響,以篩選出最適宜草莓生長的營養液配方。結果表明,營養液中硝酸鈣(Ca(NO3)2·4H2O)、硝酸鉀(KNO3)、磷酸氫二銨((NH4)2HPO4)、硫酸鎂(MgSO4·7H2O)、硝酸銨(NH4NO3)含量分別為295、303、62、246、0 mg/L時對草莓生長及果實品質均優于另外2種配方:有利于營養生長期的草莓生長,植株表現為葉片較大且厚、花梗較粗、葉色濃綠;有利于草莓成花和花朵發育,果實綜合性狀最好。本研究結果可為建立優質高產溫室基質栽培草莓的肥水運籌系統提供理論基礎和技術依據。

          Abstract:

          Hydroponic experiments of strawberry were conducted with three formulations of nutrient solution to select the best formulations for soilless cultivation of strawberry.Several main characteristics of growth including the fresh weight and dry weight of overground plant and root,the growth of crown,the photosynthetic and quality of strawberry,the diameter of staminate flower,the growth amass were investigated.The results showed that the effect of nutrient solution with the content of calcium nitrate tetrahydrate,potassium nitrate,ammonium dihydrogen phosphate,magnesium sulfate and ammonium nitrate at 295,303,62,246,0 mg/L on the growing status and fruit quality of strawberry are better than that of the other 2 treatments.This nutrient solution formula was the most propitious for the growth of ‘Jingyao’ strawberry and the enhancement of the fruit quality among the three different treatnments.That is,it facilitated the growth of strawberry in alimentation growth periods,and the leaves of ‘Jingyao’ strawberry was larger and thicker with a dark-green color,and the diameter of the pedicel was also larger. In addition,the nutrient solution formula was also conducive to the flowering promotion and the reproductive growth of strawberry,and resultes showed that the single fruit weight,yield and fruit quality is the best comparing to the other treatments.The results of this study provided academic and technological basis for establishing high yield and quality of strawberry in greenhouse substrate culture of irrigation and nitrogen application system. 

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        曾祥國,馮小明,向發云,吳潤玲,張鵬,顧玉成.基質栽培中營養液配方對草莓生長、光合特性及品質的影響[J].華中農業大學學報,2012,31(5):569-573

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        • 收稿日期:2011-10-26
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