黃腐酸對干旱脅迫下番茄生長及果實產量與品質的影響

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中圖分類號：S641.2 文獻標志碼：A 文章編號：1673-2871（2025）08-171-07

Effects of fulvic acid on tomato growth， fruit yield and quality under drought stress

REN Qiaoping'， ZHU Weilong2， SONG Hongxia2

（1.Jinzongaettee ricultural University，Taigu O3o8o1，hanxi，China）

Abstract：To investigate theefectsoffulvicacid（FA）ontomato growth，fruit yield，andqualityunderdroughtstre， Provence tomato plants were cultivated inasolar grenhouse.Four treatments were established：Normal irigation（CK）， drought +0mg?L-1 FA（FO）， drought +400mg?L-1 FA（F4）， and drought +800mg?L-1 FA（F8）.Morphological indices， drought-resistantpyiologicalparameters，fruitcharacteristics，yield，ndqualityereaesd.Theresultseostrat ed that droughtstressseverelyihbitedtomatogrowth，antioxidantenzymeactivity，fruityield，andquality.Folarpplication of 400mg?L-1 FA significantly increased plant height and stem diameter by 13.56% and 30.25% versus FO，respectively. Superoxide dismutase（SOD），peroxidase（POD），and catalase（CAT） activity increased by 15.68% ， 42.22% ，and 56.47% ，while MDA content decreased by 32.61% .Fruit yield and lycopene，vitamin C，soluble protein content rose by 44.55% ， 86.97% ， 28.07% ，and 19.80% versus FO，respectively，with sugar-acid ratio increasing significantly 128.22% ： Mineral Ca，Mg，K，Fe，Zncontent increased by 25.02% 18.57% ， 19.34% 30.34% ，and 34.65% versus FO，respectively. Insummary，under the experimental conditions，foliar application of 400mg?L-1 FA enhanced tomato growth and increased fruit yield while improvingqualityparameters underbotharidandsemi-aridconditions.Thesefindings provide aneffctive approach forreducing irigation water consumption andenhancing yieldandqualityoffacility-grown fruit-type tomato in water-scarce region.

Key words： Tomato; Drought; Fulvic acid; Growth; Yield; Quality

隨著全球天氣異常變化以及生態(tài)平衡遭到破壞，目前世界各地水資源貧乏且降雨時空分布不均、水資源短缺已成為人類面臨的嚴重問題之一，且干旱頻率及強度持續(xù)增加，嚴重制約農業(yè)生產，影響農作物產量與品質[1-3]。（剩余9932字）