Manejo Da Irrigação Em Diferentes Fases Fenológicas Da Pimenta Cayenne Cultivada Em Ambiente Protegido

Abstract

RESUMOA agricultura é a maior consumidora de água no Brasil, consumindo cerca de 70% do total de água disponível para utilização. Tendo em vista que a água é um recurso natural não renovável é necessário desenvolver estudos que otimizem sua utilização. Na cultura da pimenta alguns estudos têm sido realizados, no entanto, são necessários maiores informações sobre o manejo da irrigação da pimenteira. O objetivo do trabalho foi avaliar o efeito de diferentes tensões de água no solo aplicadas em duas fases fenológicas da cultura da pimenta Cayenne, cultivada em ambiente protegido, e verificar qual fase é mais sensível ao déficit hídrico. O estudo consistiu em um delineamento inteiramente casualizado, utilizando quatro tensões de água no solo (20, 40, 60 e 120 kPa) como tratamentos e quatro repetições, em duas fases distintas de desenvolvimento da cultura (vegetativa e reprodutiva). Foram avaliados a produção, o número de frutos e a massa média dos frutos. A produtividade da cultura apresentou comportamento inversamente proporcional à tensão de água no solo, observando menor valor para a tensão de 120 kPa. De acordo com os coeficientes Ky encontrados: 0,8003 para a fase vegetativa e 0,9171 para a fase reprodutiva, afirma-se que a fase reprodutiva foi mais sensível ao déficit hídrico. Palavras-chave:Gotejamento, Produtividade, Déficit hídrico. MANAGEMENT OF IRRIGATION AT DIFFERENT STAGES PHENOLOGICAL CAYENNE PEPPER GROWN IN PROTECTED ENVIRONMENT ABSTRACTAgriculture is the largest consumer of water in Brazil, consuming about 70% of the total water available for use. Given that water is a nonrenewable natural resource is necessary to develop studies that optimize its use. Culture of pepper some studies have been conducted, however, more information on irrigation management of pepper are needed.

Water productivity of Melissa officinalis L. irrigated with magnetically treated water

“…The sides of the structure, which is seated on a 0.30-m high concrete base, are enclosed with polypropylene mesh. Over the years, the place has already served as an experimental area for several other surveys, such as Gontijo et al (2020) who evaluated the water productivity and agronomic performance of strawberries with different leaching fractions application, Caldas et al (2016) evaluated the effect of different soil water tensions applied in two phenological phases of the Cayenne pepper grown in the same environment, and Almeida et al (2020) who evaluated the use of MTW in Sweet Heaven tomato. Experimental areas such as that it has been used by the most diverse studies because it allows control of climatic processes such as precipitation, evapotranspiration, and air temperature.…”

Filter cake enriched with rockdust on the morphometry of cherry tomato and malagueta pepper seedlings via multivariate modeling

“…Alternative substrates are the subject of research in the search for healthy seedling production with optimal root system conditioning interacting in the development and growth of the seedling (Caldas et al 2016). The addition of agroindustrial byproducts to compose substrates can be an economically viable alternative, as well as bringing bene ts to the environment and crops (Comério et al 2019), aiming to reuse the nutritional elements contained in these materials (Araújo et al 2017;Berilli et al 2020).…”

“…Another promising crop that stands out as an important product of Brazilian agribusiness is chili peppers (Oliveira et al 2014;Alves et al 2020). The states that produce the most chili peppers are Minas Gerais, Goiás, São Paulo, Ceará, and Rio Grande do Sul (Caldas et al 2016). The malagueta pepper is native to the Americas and belongs to the Solanaceae family, Capsicum frutescens species, its genus Capsicum, is considered a vegetable that can be produced throughout the Brazilian territory (Oliveira et al 2014).…”

Response of two pepper species (Capsicum chinense Jacq. and Capsicum frutescens L.) to salt stress at germination stage in Northeast Brazil

“…Pepper crops have significant economic importance in Brazilian agribusiness and have undergone major transformations seeking to meet the demands of the consumer market (Barroca et al, 2015). Peppers grow in virtually all Brazilian regions and are one of the best examples of family farming and small farmeragroindustry integration because more than 100 wages per hectare are required to harvest (Caldas et al, 2016). Brazilian Northeast has potential for pepper crops due to its favorable soils and climate (Oliveira et al, 2014).…”