黄腐酸对干旱胁迫下番茄生长及果实产量与品质的影响
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中图分类号：S641.2 文献标志码：A 文章编号：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
随着全球天气异常变化以及生态平衡遭到破坏，目前世界各地水资源贫乏且降雨时空分布不均、水资源短缺已成为人类面临的严重问题之一，且干旱频率及强度持续增加，严重制约农业生产，影响农作物产量与品质[1-3]。（剩余9932字）
