Formulation and Concentration Screening of Nutrient Solution for Melon Floating Seedling Cultivation
[Objective]To explore the appropriate formula and concentration of nutrient solution for floating seedling cultivation in facility mel-on and improve the quality and efficiency of melon seedlings.[Method]'Yinsheng'was used as the test material.The Japanese garden test for-mula,Yamazaki formula,Huanong fruit and vegetable formula were used as the test nutrient solution formula.The general formula was used as the formula trace elements.A two-factor 3×5 completely randomized trial was used.This study setted 5 levels(0 times,0.5 times,1.0 times,1.5 times,and 2.0 times),that 1.0 times was the base concentration.Respectively,The plant height,stem diameter,soluble protein content and malondialdehyde(MDA)content were measured.[Result]The results showed that there were differences among melon seedlings treated with different nutrient solution formulations and concentrations.The stem diameter,leaf area and petiole length of melon seedlings treated with 0.5 times concentration of Huannong fruit and vegetable formula were significantly higher than other treatments,with average values of 2.87 mm,13.45 cm2 and 4.17 cm,respectively.Plant height,petiole thickness,root length and root-shoot ratio were higher than those of other treatments,and the mean values were 8.1 cm,2.31 mm,6.57 cm and 0.22,respectively.The results showed that the seedlings cultivated with 0.5 times concentration of Huanong fruit and vegetable formula had the highest comprehensive score.[Conclusion]When melon seedlings are growed by float breeding,0.5 times concentration of Huanong fruit and vegetable formula can be preferred.
MelonFloating seedling rearingNutrient solution formula and concentrationComprehensive evaluation
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