Deficit irrigation is applied to several agricultural crops as a water-saving strategy. The tomato plant sensitive water stress; however, integration with biostimulant applications, based on seaweed extracts, could be strategy for plants adapting this abiotic condition. objective of study was evaluate agronomic and quality aspects cultivated under deficit combined Ascophyllum nodosum extract (ANE) application. experiment conducted using completely randomized design two replacement levels, 70...

In regions where water is a limited resource, lettuce production can be challenging. To address this, management strategies like deficit irrigation are used to improve water-use efficiency in agriculture. Associating this strategy with silicon (Si) application could help maintain adequate levels of agricultural even availability. Two crop cycles were conducted completely randomized design, factorial scheme (2 × 3), three (60%, 80% and 100%) evapotranspiration (ETc), without Si application....

Seaweed extracts have several functions in agriculture due to their composition that is rich nutrients, plant hormones, and bioactive substances. It a natural product used as biostimulant especially promote the growth development of plants tolerance environmental stresses. The objective this study was analyze response containing seaweed extract derived from Ascophyllum nodosum cultivation tomato eggplant seedlings, analyzing physiological parameters two different regions Brazil. Cherry were...

ABSTRACT Water deficit in cauliflower cultivation may impair its development and yield. This study aimed to analyze the agronomic performance of grown a protected environment, under different water conditions silicon (Si) doses. The experiment was arranged randomized block design, 3 x 4 factorial scheme, with three levels replacement [40, 70 100 % evapotranspiration (ETc)] four Si doses (0, 50, 150 kg ha-1), replications. Leaf (SPAD index, area, fresh dry weight), stem (diameter, height,...

Abstract The objective of this work was to determine the accumulation silicon in plant components cauliflower (Brassica oleracea var. botrytis) grown with different levels water replacement and rates Si. experimental design a randomized complete block three conditions (40, 70, 100% evapotranspiration), four Si (0, 50, 100, 150 kg ha-1), replicates. Daily evapotranspiration determined constant table lysimeters, by drip system. As source Si, oxide applied times crop cycle - at initial,...

Growing conditions such as water supply and soil fertility influence oregano morphological development physiological responses. Our study aimed to analyse the responses of plants grown under different bokashi application rates. The experiment was carried out in a greenhouse randomized block design 3 x 4 factorial scheme. Treatments encompassed three replacement levels (60, 80, 100% crop evapotranspiration - ETc) four rates (0, 100, 200, 300 g m-2), with five replications each. Oregano...

Bokashi is fermented organic compost capable of improving the physical, chemical, and biological conditions soils. The action in agricultural production system influenced by its preparation, resulting products with different physicochemical characteristics. study aimed to characterize bokashi produced on-farm compare it commercial products. composts southern Brazil were obtained through efficient microorganisms (EM), collected an area permanent preservation, kefir. Two used for comparison...

Information related to the phenological growth of oregano grown in a protected environment associated with water and nutritional availability is scarce. In this context, study aimed investigate performance plants bokashi organic fertilizer under deficit. The experiment was carried out randomized blocks 6×4 factorial scheme, consisting six levels replacement (60, 70, 80, 90, 100, 110% crop evapotranspiration – ETc) four doses (0, 200, 300 g m−2), five replications. number branches, leaf area,...

The objective of this study was to evaluate the effects different levels soil water replacement in each phenological stage broccoli crop cultivated a protected environment. experiment conducted environment municipality Maringá, Paraná, Brazil. experimental design used randomized blocks 4 by 3 having four (55, 70, 85, and 100% evapotranspiration) applied three stages (initial, intermediate, final), replications. Productivity, inflorescence fresh matter, leaf stem number...

The monitoring of grain and seeds characteristics is fundamental to maintain postharvest quality. Grain mass changes through CO2 levels can reduce the product deterioration by anticipating actions This study aimed develop a system in stored grains/seeds analyze its efficiency. analysis was performed four crop species (brachiaria, sunflower, corn, soybean) with different water content sanity condition. hardware composed controller micro board, sensor data module. routine developed C++...

O conhecimento referente a demanda hídrica da cultura, assim como compreensão de seu desenvolvimento vegetativo é base para qualquer pesquisa científica agronômica. presente trabalho teve por objetivo determinar evapotranspiração, coeficiente taxa crescimento do fruto, caule e atividades fotossintéticas meloeiro. experimento foi conduzido em ambiente protegido no Centro Técnico Irrigação (CTI) Universidade Estadual Maringá (UEM), Maringá-Pr. híbrido utilizado o melão Cantaloupe Torreon...

Interações entre a planta e microbiota na rizosfera são um dos principais fatores determinantes da sanidade das plantas fertilidade do solo. A é complexa, compreendem numerosos micro-organismos, dentre eles, as micorrizas arbusculares os rizóbios de grande importância para produtividade vegetal. O objetivo desta revisão foi caracterizar relações simbióticas micorrízicas bactérias fixadoras nitrogênio suas com tolerância doenças em planta. Através literatura caráter qualitativo, reunido...

Water management has a direct impact on plant development, and under deficit conditions, it often results in reduced yields. Silicon (Si), however, the potential to alleviate stress enhance performance unfavorable conditions. This study aimed analyze of tomato plants cultivated different water replacement depths forms silicon application. The experiment was laid out completely randomized design with 2 × 4 factorial arrangement represented by two (60% 100% crop evapotranspiration - ETc) four...

Determining the need for water, as well crop coefficients, is essential information management of irrigation and consequently efficiency in use water resources. The study aimed to determine evapotranspiration culture coefficients lettuce radish a monoculture system consortium protected environment. cultivar used was Vanda hybrid 19 used. reference estimated by Penman-Monteith method using data from automatic weather station cultures determined direct lysimeters constant table. demand...

The study aimed to analyze the effect of silicon application on tomato crops subjected different water management conditions. experiment was conducted in a completely randomized design with two replacement conditions (60 and 100% crop evapotranspiration - ETc), four forms (no application, full-dose soil split foliar application) replicates. When plants were reproductive stage, gas exchange analysis performed periods (critical period before after replacement). photosynthesis rates, internal...

ABSTRACT The quality of water distribution and the coefficients that express use efficiency are evaluated from irrigation depth (I). However, a hypothesis has been proposed it may be more effective to base these analyses on stored in soil profile (H), after irrigation. To evaluate this hypothesis, very clayey soil, bean was cultivated under by conventional sprinkling, with four scenarios application uniformity. During crop cycle, irrigations were carried out, scheduled according lower limit...

The quantification and qualification of the productive potential peanuts allow for differentiation cultivars identification most ones at regional levels. This study aimed to evaluate productivity grain quality peanut genotypes cultivated in northwest region Paraná. treatments were arranged a randomized complete block design consisting four genotypes, with replications, plots 3.6x3.0 m composed rows spaced 0.9 m. Plants evaluated pre-harvest, harvest, post-harvest characterize...

A formação de mudas apresenta reflexo sobre o desempenho da cultura, podendo ser influenciada pelo substrato utilizado. utilização composto bokashi e resíduos orgânicos pode alterar características do produto influenciar no desenvolvimento das mudas. Dessa forma, estudo teve como objetivo avaliar efeito fermentado couve-flor. O experimento foi conduzido em delineamento inteiramente casualizado esquema fatorial 5x2, sendo cinco condições agrícolas (controle (sem resíduos), resíduo café,...

The determination of water content is essential for the maintenance grain quality, and an evaluation alternative methods quantification allows to increase efficiency process bring benefits productive sector. study aimed analyze using microwave ovens determine in grains. was carried out a completely randomized design 5 x 6 factorial scheme, with five species (peanut, sunflower, corn, soybean wheat) six drying periods (0.5, 1, 1.5, 2, 2.5, 3 min), four replications. Data were subjected...

AbstractPhotosynthesis is the most important biochemical process that takes place in plants and chlorophyll main pigment involved it. Current destructive methods for determining content are accurate, but time-consuming relatively expensive. The SPAD (Soil Plant Analysis Development) a portable meter provides an instant nondestructive reading of green color leaves. As source vitamins antioxidants such as C, carotenoids fiber content, lettuce (Lactuca sativa L.) plays crucial role human...