Impact of storage on the physiological quality of soybean seeds after treatment with fungicides and insecticides

Abstract

Chemical seed treatment is a practice that assists in control of pests and pathogens and allows crops to achieve their maximum yield potential. However, the storage period of seeds treated with insecticides and fungicides can affect seed physiological potential. The aim of this study was to evaluate the physiological quality of soybean seeds treated with different fungicides and insecticides after four different storage periods. The experimental design was completely randomized and the treatments were distributed in a 10 × 4 factorial arrangement in which the soybean seeds of the cultivar BMX Potência RR were treated with the following phytosanitary products: fipronil + pyraclostrobin + thiophanate-methyl, thiophanate-methyl, carbendazim, carboxin + thiram, imidacloprid + thiodicarb, chlorantraniliprole, thiamethoxam, cyantraniliprole, fipronil, and a control (seeds without chemical treatment), in four replications. The seeds were evaluated at 0, 30, 60, and 90 days after the chemical treatment. The following tests were performed: germination, first count of germination, accelerated aging, seedling emergence in sand, seedling emergence speed, and seedling dry matter. The treatment with the carboxin + thiram fungicide mixture provided for adequate physiological quality of the seeds throughout storage. The insecticide thiamethoxam has a negative effect on the physiological quality of soybean seeds that are stored after treatment with it.

Aportes Metodológicos Para a Implantação E Avaliação De Experimentos Com Sementes Em Relação a Germinação E Ao Vigor

“…Também podem ser usados substratos diversos como tratamentos para a visualizar a germinação ou emergência em condições diferenciadas. Maiores informações sobre a fisiologia de sementes, em relação às necessidades da germinação, podem ser encontradas nos escritos de Benech-Arnold (2004).…”

Comportamento físico-químico de inseticida cyantraniliprole em solos com diferentes atributos e remoção por biochar

“…O cyantraniliprole (Figura 9), tem sido de grande utilização por apresentar alto potencial no controle de insetos sugadores e mastigadores, além de ser mais eficiente comparado com o chlorantraniliprole (ZHANG et al, 2015) . É comercializado em suspensão concentrada e indicado para o tratamento de sementes (JIN et al, 2016;JOSEPH, 2017;BEM et al, 2019;ZHANG et al, 2019b;PES et al, 2020;DEL BEM JUNIOR et al, 2020;WILSON et al, 2021;VOJVODIĆ & BAŽOK, 2021) e pulverização (AMARASEKARE & SHEARER, 2013;FANIGLIULO et al, 2015;HERRICK & CLOYD, 2017;QURESHI et al, 2017) de diferentes culturas. Seu nome de FOSTER et al, 2012).…”