Chabazite and seaweed extract effects on lettuce water relations and growth

IF 4.2 2区农林科学 Q1 HORTICULTURE

Scientia Horticulturae Pub Date : 2025-06-26 DOI:10.1016/j.scienta.2025.114260

A. Satriani , D. Castronuovo , A. Comegna , L. Cardone , V. Candido , S. Lovelli

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Abstract

Biostimulants and soil amendments play essential roles in sustainable agriculture. This research aims to highlight the potential benefit deriving from the use of a seaweed extract biostimulant (Ascophyllum nodosum-based biostimulant, Acadian) combined with chabazite as amendment in the sustainable management of lettuce. In particular, the effects of chabazite and seaweed extract on the lettuce water relations and growth were studied under controlled conditions. The lettuce plants were cultivated in pots filled with a sandy-loam soil mixed with chabazite, a commercial zeolite, and seaweed extract, applied to the soil by irrigation water at a concentration of 0.08 % (w/v) in two applications, to create four experimental treatments: (1) soil with 2 % chabazite; (2) soil with seaweed extract (Acadian); (3) soil with both 2 % chabazite and seaweed extract (chabazite + Acadian), and (4) soil as a control. The chabazite treatment was characterized by measuring soil water retention curves (SWRCs). Soil moisture, gas exchange parameters, leaf water potential, and growth parameters were measured. Both seaweed extract and chabazite improved photosynthesis and leaf water use efficiency. A positive effect on plant growth of lettuce plants by measuring the higher fresh weight and leaf area in the chabazite + Acadian treatment was recorded. Results carried out on lettuce plant growth suggest the possibility to obtain benefits deriving from the combined application of chabazite and seaweed extract biostimulant. The latter helps to mitigate the negative impact of chabazite in the water uptake by improving the physiological responses of lettuce plants. However, chabazite supports water retention, which could collectively enhance crop resilience and gas exchange efficiency.

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茶巴石和海藻提取物对生菜水分关系和生长的影响

生物刺激素和土壤改良剂在可持续农业中发挥着重要作用。本研究旨在强调使用海藻提取物生物刺激素（Ascophyllum nodosum-based biostimulant, Acadian）和chabazite作为生菜可持续管理的修正剂所带来的潜在效益。在控制条件下，研究了水烟石和海藻提取物对生菜水分关系和生长的影响。莴苣植株在盆栽中种植，盆栽中装满了混合了茶巴石、一种商业沸石和海藻提取物的砂质壤土，通过两种浓度为0.08% （w/v）的灌溉水施用于土壤中，形成四种试验处理：(1)含有2%茶巴石的土壤；(2)加海藻提取物（Acadian）的土壤；(3)同时含有2%茶巴石和海藻提取物（茶巴石+阿卡迪亚）的土壤；(4)作为对照的土壤。通过测量土壤保水曲线（SWRCs），对茶巴石处理进行了表征。测定了土壤水分、气体交换参数、叶片水势和生长参数。海藻提取物和茶巴氏石均能提高光合作用和叶片水分利用效率。通过测量查巴氏石+阿卡迪亚处理对生菜植株生长的积极影响，记录了较高的鲜重和叶面积。对生菜植株生长的研究结果表明，联合应用恰巴氏石和海藻提取物可以获得有益的效果。后者有助于通过改善生菜植株的生理反应来减轻茶水石对水分吸收的负面影响。然而，茶巴石支持保水，这可以共同提高作物的抗逆性和气体交换效率。

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来源期刊

Scientia Horticulturae 农林科学-园艺

CiteScore

8.60

自引率

4.70%

发文量

796

审稿时长

47 days

期刊介绍： Scientia Horticulturae is an international journal publishing research related to horticultural crops. Articles in the journal deal with open or protected production of vegetables, fruits, edible fungi and ornamentals under temperate, subtropical and tropical conditions. Papers in related areas (biochemistry, micropropagation, soil science, plant breeding, plant physiology, phytopathology, etc.) are considered, if they contain information of direct significance to horticulture. Papers on the technical aspects of horticulture (engineering, crop processing, storage, transport etc.) are accepted for publication only if they relate directly to the living product. In the case of plantation crops, those yielding a product that may be used fresh (e.g. tropical vegetables, citrus, bananas, and other fruits) will be considered, while those papers describing the processing of the product (e.g. rubber, tobacco, and quinine) will not. The scope of the journal includes all horticultural crops but does not include speciality crops such as, medicinal crops or forestry crops, such as bamboo. Basic molecular studies without any direct application in horticulture will not be considered for this journal.