摘要
为探究黄腐酸(FA)对干旱胁迫下番茄生长及果实产量和品质的影响,以普罗旺斯番茄为材料,采用日光温室种植方式,设置正常灌溉(CK)、干旱+0 mg·L^(-1)FA(F0)、干旱+400 mg·L^(-1)FA(F4)、干旱+800 mg·L^(-1)FA(F8)4个处理,测定其形态指标、抗旱生理指标以及果实性状、产量和品质。结果表明,干旱胁迫下番茄生长、抗氧化酶活性以及果实产量和品质均受到严重抑制,而喷施400 mg·L^(-1)FA后,其株高、茎粗较F0分别显著增加13.56%和30.25%,超氧化物歧化酶、过氧化物酶和过氧化氢酶活性分别显著提升15.68%、42.22%和56.47%,丙二醛含量显著降低32.61%;且果实产量、番茄红素含量、维生素C含量和可溶性蛋白含量较F0分别显著提升44.55%、86.97%、28.07%和19.80%,糖酸比显著升高128.22%,矿质元素Ca、Mg、K、Fe、Zn含量较F0分别显著提高25.02%、18.57%、19.34%、30.34%和34.65%。综上,本试验条件下,喷施400 mg·L^(-1)FA能促进干旱及半干旱条件下番茄生长,并提高果实产量,改善品质。研究结果为缺水地区节约灌溉用水及设施种植水果型番茄提高产量与改善品质提供了有效策略。
To investigate the effects of fulvic acid(FA)on tomato growth,fruit yield,and quality under drought stress,Provence tomato plants were cultivated in a solar greenhouse.Four treatments were established:Normal irrigation(CK),drought+0 mg·L^(-1)FA(F0),drought+400 mg·L^(-1)FA(F4),and drought+800 mg·L^(-1)FA(F8).Morphological indices,drought-resistant physiological parameters,fruit characteristics,yield,and quality were assessed.The results demonstrated that drought stress severely inhibited tomato growth,antioxidant enzyme activity,fruit yield,and quality.Foliar application of 400 mg·L^(-1)FA significantly increased plant height and stem diameter by 13.56%and 30.25%versus F0,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 F0,respectively,with sugar-acid ratio increasing significantly 128.22%.Mineral Ca,Mg,K,Fe,Zn content increased by 25.02%,18.57%,19.34%,30.34%,and 34.65%versus F0,respectively.In summary,under the experimental conditions,foliar application of 400 mg·L^(-1)FA enhanced tomato growth and increased fruit yield while improving quality parameters under both arid and semi-arid conditions.These findings provide an effective approach for reducing irrigation water consumption and enhancing yield and quality of facility-grown fruit-type tomato in water-scarce region.
作者
任巧萍
朱伟龙
宋红霞
REN Qiaoping;ZHUWeilong;SONG Hongxia(Jinzhong Modern Agricultural Industry Development Center,Jinzhong 030600,Shanxi,China;College of Horticulture,Shanxi Agricultural University,Taigu 030801,Shanxi,China)
出处
《中国瓜菜》
北大核心
2025年第8期171-177,共7页
China Cucurbits And Vegetables
基金
山西省现代农业产业技术体系建设专项资金项目(2024CYJSTX08)。
关键词
番茄
干旱
黄腐酸
生长
产量
品质
Tomato
Drought
Fulvic acid
Growth
Yield
Quality
