Germination and vigor of watermelon seeds treated with biostimulant

IF 0.9 4区农林科学 Q3 AGRONOMY

Revista Caatinga Pub Date : 2023-01-01 DOI:10.1590/1983-21252023v36n424rc

Silvia S. C. de Oliveira, João F. G. Sousa, Sihélio J. S. Cruz, Vanessa de F. G. Ponciano, Daline B. Bottega

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引用次数: 0

Abstract

ABSTRACT Direct sowing is the most used watermelon propagation method in Brazil. Therefore, the use of treated seeds is an alternative for improving uniformity of plant stands at planting. Thus, the objective of this study was to assess the effects of seed treatments with biostimulant on the germination and vigor of watermelon [Citrullus lanatus (Thunb.) Matsum & Nakai] seeds of the cultivar Crimson Sweet. A completely randomized experimental design with four replications was used. The seed treatments consisted of six biostimulant (Agressive Desperta®) rates (0, 1, 2, 3, 4, and 5 mL kg-1). Seed germination speed index, seedling length, seedling dry weight, seedling emergence in the field, and seedling emergence speed index were evaluated. The treatment of watermelon seeds with biostimulant resulted in increases in seed germination speed and seedling length and dry weight as the biostimulant rate was increased. Seedling percentage and emergence speed increased up to the rate of 3 mL kg-1 under field conditions; however, application of higher rates resulted in phytotoxicity.

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生物刺激素对西瓜种子萌发和活力的影响

直播是巴西最常用的西瓜繁殖方式。因此，使用处理过的种子是在种植时提高植株均匀性的一种替代方法。因此，本研究的目的是评估生物刺激素种子处理对西瓜发芽和活力的影响。Matsum,深红甜品种的种子。试验采用完全随机设计，共4个重复。种子处理包括6种生物刺激素(aggressive Desperta®)浓度(0、1、2、3、4和5 mL kg-1)。对种子萌发速度指数、幼苗长度、幼苗干重、田间出苗速度指数和出苗速度指数进行了评价。生物刺激素处理西瓜种子，随着生物刺激素用量的增加，种子萌发速度加快，幼苗长和干重增加。在田间条件下，出苗率和出苗率可达3 mL kg-1;然而，较高的施用量会导致植物毒性。

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来源期刊

Revista Caatinga AGRONOMY-

CiteScore

2.10

自引率

11.10%

发文量

审稿时长

6-12 weeks

期刊介绍： A Revista Caatinga é uma publicação científica que apresenta periodicidade trimestral, publicada pela Pró-Reitoria de Pesquisa e Pós-Graduação da Universidade Federal Rural do Semi-Árido – UFERSA, desde 1976. Objetiva proporcionar à comunidade científica, publicações de alto nível nas áreas de Ciências Agrárias e Recursos Naturais, disponibilizando, integral e gratuitamente, resultados relevantes das pesquisas publicadas.