Biostimulants Improve Bulb Yield, Concomitantly Affecting the Total Phenolics, Flavonoids, and Antioxidant Capacity of Onion (Allium cepa)

被引：0
|
作者：
Vojnovic, Dorde [1 ]
Maksimovic, Ivana [1 ]
Horecki, Aleksandra Tepic [2 ]
Milic, Anita [2 ]
Sumic, Zdravko [2 ]
Zunic, Danijela [3 ]
Adamovic, Boris [1 ]
Ilin, Zarko [1 ]
机构：
[1] Univ Novi Sad, Fac Agr, Dositej Obradovic Sq 8, Novi Sad 21000, Serbia
[2] Univ Novi Sad, Fac Technol, Bulevar cara Lazara 1, Novi Sad 21000, Serbia
[3] Agr Extens Serv PSS Sombor, Staparski Put 35, Sombor 25000, Serbia
来源：
HORTICULTURAE | 2024年 / 10卷 / 04期
关键词：
onion; bulb; phenolics; flavonoids; antioxidant capacity; HUMIC SUBSTANCES; SEAWEED EXTRACTS; QUALITY; GROWTH; PLANT; ACIDS; TRICHODERMA; METABOLISM;
D O I：
10.3390/horticulturae10040391
中图分类号：
S6 [园艺];
学科分类号：
0902 ;
摘要：
In the pursuit of maximizing onion (Allium cepa) yield and quality, farmers often face the challenges of unfavorable ecological conditions and inadequate agronomic practices. Therefore, our two-year study investigated the effects of biostimulants (BTs) of plant growth on bulb yield and the bioactive compounds of directly seeded onion. Four treatments were applied: control (C), seaweed extracts (BT1), humic and fulvic acid (BT2), and Trichoderma spp. (BT3). The results demonstrated a significant increase in bulb yield with BT1 (up arrow 18.7%), BT2 (up arrow 18.0%), and BT3 (up arrow 24.3%). Intriguingly, all BTs markedly reduced phenolic content across both years. Additionally, BT1 and BT3 elevated flavonoid levels (up arrow 16.8% and up arrow 16.7%, respectively), while BT2 decreased them (down arrow 24.2%). Notably, in 2021, DPPH, FRAP, and ABTS tests indicated a significant reduction in antioxidant capacity compared to C. Our study underscores the important role of BTs in enhancing yield, influencing secondary metabolites and contributing to environmental sustainability in onion cultivation.
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页数：15
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