Emergence Speed Research Articles

Digital transformation during a pandemic: Stretching the organizational elasticity

How can firms turn their COVID-19 pandemic-driven digitalization efforts into sustainable digital transformation? Firms accelerated their digitalization efforts during the global pandemic to an emergency speed. This speed of implementation of digital technologies left organizations with little time to adapt their structures, processes, and culture to the new environment. We argue that firms currently remain in a stretched operations mode that will either bounce back to normal after the pandemic or ultimately lead to organizational failure. Seven in-depth case studies based on 11 interviews of top management support our argument and show that, during this crisis, firms have been operating in a state of exception. We take an organizational elasticity perspective to investigate this status and develop an agenda for firms to facilitate sustainable digital transformation. Our study provides important insights into organizational elasticity as a framework to manage the long-term organizational impact of the current pandemic.

SOYBEAN GENERATIONS UNDER GAMMA RAYS AND EFFECTS ON SEED QUALITY

Mutation induction is used to improve existing or generate new varieties. The objective of this study was to evaluate the effect of gamma radiation doses under successive generations of cultivation on seed quality of two soybean lines (VX04-6828 and VX04-5692). Different gamma-ray doses (60Co) were evaluated (0; 50; 150 and 250 Gray) in the M0 (first sowing) generation, and analyzed for water content, germination, vigor, abnormal seedlings, dead seeds, and hilum color. Then, sowing (M0) was carried out to obtain plants and seeds of the first production cycle (M1 generation), and then those of the subsequent cycle (M2 generation). The same analyses of M0 were performed for M2 and M3 generations, with the addition of germination rate and emergence speed index in the field. The data were submitted to analysis of variance in a factorial arrangement. The generations were compared using Tukey’s test, while doses were evaluated by regression analysis. Seeds of the two soybean lines showed significant interaction for the different generations and gamma-ray doses in all the variables analyzed, except for water content. The application of gamma rays in soybean seeds showed effects on successive generations of cultivation, with better physiological quality up to the dose of 150 Gy (Gray) and greater sensitivity to gamma radiation for the VX04-5692 line.

Suitability of tetrazolium test for Tamarindus indica L. seeds

Seed quality is routinely assessed by direct tests, e.g, the germination test, or indirect tests like the tetrazolium test, which has shoown to be promising in the determine viability and vigor, allowing the diagnosis of the main problems that may affect seed quality, such as mechanic damages, field deterioration and storage. In this respect, this study was conducted to develop a tetrazolium test protocol to evaluate the viability and vigor of Tamarindus indica L. seeds. Before exposing the seeds to the tetrazolium solution, seed preconditioning studies were carried out in which seven soaking times were tested. The soaking time that did not cause damage to the seed embryo and allowed the removal of the seed coat to expose the seed structures to the tetrazolium salt was selected. Then, an experiment was set up in a completely randomized design with a 2x3x3 factorial arrangement involving two seed lots, three soaking times in tetrazolium salt (6, 12 and 16 h) and three salt concentrations (0.075, 0.1 and 0.5%), totaling 18 treatments with four replicates of 25 seeds, evaluated at 40 ºC. For each treatment, the seeds were divided into three classes, namely, viable and vigorous embryos (class 1); viable embryos (class 2) and non-viable or dead embryos (class 3). For a comparison with the tetrazolium test results, the two seed lots were analyzed for water content, germination, emergence, first count, germination speed index, emergence speed index, growth and seedling dry weight. The viability and vigor of T. indica seeds can be evaluated after a soaking period of 48 h and immersion for 6h in tetrazolium salt at the concentration of 0.1%, at 40°C, with provides results similar to conventional seed viability tests. The tetrazolium test proved to be adequate to differentiate T. indica seed lots in terms of viability.

Correlation of biometric characteristics of fruits and seeds with the vigor of Agonandra brasiliensis seedlings in northern Amazonia

The goal of this study was to determine and correlate the main morphometric characteristics of fruits, seeds, and seedling vigor of Agonandra brasiliensis, in Roraima. The design was completely randomized with three treatments, consisting of six replications with 20 seeds. The treatments established were three classes of seeds: T1 - small seeds (S = 1.50-1.69 g); T2 - medium seeds (M = 1.70-1.89 g) and T3 - large seeds (L = 1.90-2.09 g). The variables evaluated were: length; diameter; the fresh mass of fruits and seeds; percentage, speed (in index) and average time of emergence, length of roots and aerial part; number of leaves; fresh, dry and total seedling mass; seedling lignification index; root/shoot ratio and dry root/shoot ratio and correlations between all studied variables. The fresh mass of the fruit of Agonandra brasiliensis has a high positive correlation with the mass of seeds. Small seeds of Agonandra brasiliensis exhibit a higher percentage of emergence in the conditions of the northern Amazon.

Seed size and presence of thorns in Caryocar brasiliense on seedling emergence

Commercial propagation of pequizeiro, which stands out among the main native fruits of the Cerrado region for its high economic potential, has been done by seeds, despite their erratic germination. The objective of this study was to evaluate the effect of seed size and presence of thorns on the endocarp on seedling emergence of pequizeiro in the field. Seeds were collected in a pequizeiro commercial area in Canarana-MT, Brazil. Due to availability, 2,353 thorny seeds (3 sizes) and 106 seeds without thorns (medium sized) were tested. Thorny seeds were classified as large – longer than 50 mm; medium – between 40 and 50 mm; small – less than 40 mm. Seedling emergence started after 50 days in all seed categories, extending up to 100 days in the large seeds and to about 1 year after sowing in the small and medium sized ones. Small seeds showed a lower rate and speed of emergence compared to the others. Large seeds showed higher emergence speed compared to the medium ones. The presence of thorns did not affect seedling emergence. These results indicate the advantages of pequizeiro seed classification for sowing purposes.

Accelerated aging test in the determination of safflower seeds vigor

In assessing the quality of seed lots, the vigor tests are complementary to the germination test and they identify differences in the degree of deterioration of the lots. For safflower, there is little information regarding these tests. In this way, the intention of this study was to adapt the accelerated aging test methodology to assess the physiological potential of safflower seeds (Carthamus tinctorius). For this purpose, 12 seed lots were evaluated for thousand-seed weight, germination, first germination count, seedling emergence test (emergence percentage, emergence speed index, relative emergence frequency and the initial, final and mean times) and accelerated aging. For the accelerated aging test, the traditional and saline methods were used. For this, the samples were conditioned in periods of 0, 8, 16, 24, 32 and 48 hours at 42 °C. Afterwards, they were submitted to the germination test, with evaluation of normal seedlings on the 3rd day. The 12 lots were evaluated within each period, in independent experiments. The data were submitted to analysis of variance and the means were compared using the Scott-Knott clustering method at 5% probability. In the traditional accelerated aging test the periods of 16, 24, 32 and 48 hours were more efficient in differentiating the lots in vigor levels, as they stratified the lots in three classes and the time of 8 hour classified the lots in two levels of vigor. In the accelerated saline aging method the time 32 hours were more efficient since it ranked seed lots at three levels of vigor and the periods of 8, 16 and 24 hour stratified the lots in two levels. In results obtained by the principal component analysis it was verified. The variables traditional accelerated aging for 24 and 32 hours correlated with emergence in the field. Therefore, the traditional accelerated aging test at 42 °C for 24 hours are promising for evaluating the physiological quality of safflower seeds.

Creole maize from South-West of São Paulo, Brazil: diversity and seed quality

The maintenance of creole seeds promotes preservation of agrobiodiversity and family autonomy. For this reason, seeds quality is essential in the context of creole seeds because directly impacts the improvement of the production field and, consequently, its continuous existence. The study evaluated the diversity and the seed quality of creole maize seeds in two harvests in the South-West of São Paulo, Brazil, an important maize production site in Brazil. Seeds from both harvests (2019 and 2020) were evaluated regarding the physical (physical aspects, one test seed mass, test of infestation), physiological (water content, germination test, seedling emergence in soil, emergence speed index and cold test) and health potential (blotter test). Among 20 lots collected, the seeds were classified into five varieties according to family famers perception. It was observed a variation in terms of physical, physiological and health quality between the seed lots. The lots harvested in 2020 had the highest values of size, 1000 seed mass, germination and vigor. The blotter test identified for both harvests, mainly in 2019, high incidence of Aspergillus sp. and Penicillium sp., considered as storage fungi. Therefore, the variation in seed quality between the harvest refers mainly to the characteristics of the storage process performed. More studies on better strategies for creole maize seed storage are necessary to guarantee seed quality, since low seed quality is a risk for losing these materials.

Application of Moringa Leaf Extract as a Seed Priming Agent Enhances Growth and Physiological Attributes of Rice Seedlings Cultivated under Water Deficit Regime.

Population growth, food shortages, climate change and water scarcity are some of the frightening challenges being confronted in today’s world. Water deficit or drought stress has been considered a severe limitation for the productivity of rice, a widely popular nutritive cereal crop and the staple food of a large portion of the population. A key stage in crop growth is seed emergence, which is mostly constrained by abiotic elements such as high temperatures, soil crusting and low water potential, which are responsible for poor stand establishment. Seed priming is a pre-sowing treatment of seeds that primes them to a physiological state that allows them to emerge more proficiently. The purpose of this study was to investigate the potential of leaf extracts from local and exotic moringa landraces as seed priming agents in rice cultivated under water deficit (75% field capacity) and control conditions (100% field capacity). Rice seeds were placed in an aerated solution of moringa leaf extract (MLE) at 3% from three obtained landraces (Faisalabad, Multan and an exotic landrace of India). The results obtained from the experimentation show that the water deficit regime adversely affected the studied indicators including emergence and growth attributes as well as physiological parameters. Among the priming agents, MLE from the Faisalabad landrace significantly improved the speed and spread of emergence of rice seedlings (time to start emergence at 23%, emergence index at 75%, mean emergence time at 3.58% and final emergence percentage at 46%). All the priming agents enhanced the growth, photosynthetic pigments, gas exchange parameters and antioxidant activities, particularly under the water deficit regime, but the maximum improvement was recorded by the MLE from the Faisalabad landrace. Therefore, the MLE of the Faisalabad landrace can be productively used to boost the seedling establishment and growth of rice grown under normal and water deficit conditions.

Synthesis and characterization of metal-based nanoparticles and their effect on seed quality parameters of American varieties of cotton

Cotton seeds are poor germinator than other crops because of high sensitivity towards insect pests and other biotic and abiotic stresses during germination process. Various researches are done to increase seed quality parameters of cotton seeds but application of nanoparticles was never used for same. Literature regarding interaction of seed quality of cotton and nanotechnology is not available till date. Seeds of two American varieties (H 1300 and H 1098-i) of cotton were treated with different concentration (0 ppm, 50 ppm, 100 ppm, 200 ppm and 400 ppm) of three different nanoparticles (Zinc oxide nanoparticles, silver nanoparticles and Titanium dioxide nanoparticles) and their bulk form Zn(NO3)2·4H2O, AgNO3 and [Ti{OCH(CH3)2}4], respectively. Seeds were also nanoprimed with above-mentioned concentration of nanoparticles. Effect of seed treatments was observed for germination percentage and seed vigour indices in laboratory conditions and for seedling establishment and speed of germination in field conditions. Nanoparticles were synthesized by chemical method and characterization of nanoparticles was done by FESEM, HRTEM, UV/Vis analysis and FTIR. Characterization of nanoparticles confirmed that the size of chemically synthesized nanoparticles was in nano range. The average particle size of ZnONPs, AgNPs and TiO2NPs was 36.25 nm, 69.35 nm and 39.40 nm, respectively. It was witnessed that dissimilar concentration of nanoparticles showed non-significant effect on seed quality in laboratory as well as seedling establishment and speed of emergence in field condition. Nanopriming with nanoparticles is more suitable for seed treatment over seed treatment with nano form (powder form) and bulk form. It was also noticed that ZnONPs and TiO2NPs increased seed quality parameters but silver had slightly negative effects. Maximum seed germination and seed vigour indices in laboratory and seedling establishment and speed of emergence in field condition was found when seeds were nanoprimed with 400 ppm of ZnONPs and 200 ppm of TiO2NPs. It could be concluded that problem of low germinability and vigour of cotton seeds could be minimized by seed treatment with nanoparticles.

Seed physiological quality of wheat cultivars in response to phosphate fertilization

Abstract: Mineral nutrients play an important role in the composition of seeds, influencing the germination rate and the production of vigorous seedlings, which is fundamental for the establishment of the plant stand and crop yield. This work aimed to evaluate the effect of phosphate fertilization on phosphorus (P) content and the physiological quality of seeds of wheat cultivars. A 2 × 16 split plot design was used, with two rates of P (0 and 140 kg.ha-1) and 16 wheat genotypes (cultivars BR 18, BR 23, BRS 208, BRS 254, BRS 264, BRS 404, BRS Graúna, BRS Pardela, BRS Sabiá, WT 15025, CD 118, IPR Catuara, Ocepar 14, Supera, TBIO Bandeirante and TBIO Iguaçu). The evaluation includes: first count, germination, accelerated aging, seedling emergence and length, electrical conductivity, emergence speed index, P content in seeds, and thousand-seed weight. The data of P rates and wheat genotypes were subject to analysis of variance and to the comparison of means by the F-test and Scott-Knott test, respectively. The seeds of BR 18 and Ocepar 14 showed higher physiological quality, whereas the seeds of TBIO Iguaçu, CD 118, and BRS Sabiá showed lower vigor. Phosphate fertilization provides the production of wheat seeds with higher P content and physiological quality, but it does not influence the thousand-seed weight of most wheat cultivars.

Do the previous crop and top-dressing nitrogen fertilization change the yield and physiological and sanitary quality of common bean seeds?

Abstract: The aim was to evaluate the effects of previous crop and top-dressing nitrogen fertilization on the yield and physiological and sanitary quality of common bean seeds. The design used was in randomized blocks in a split-plot scheme, with four replications. The plots were represented by three previous crops (sole maize, maize + Urochloa ruziziensis and sole U. ruziziensis), preceding common bean. The subplots consisted of N doses (urea) applied as top-dressing (0, 40, 80, 120 and 160 kg N.ha-1) when the common bean had four expanded leaves. Physiological quality and sanitary quality of the seeds were evaluated through germination tests, first count, emergence speed index, accelerated aging, seedling emergence in the field and pathogen incidence, in addition to crude protein content, 100-seed weight and yield. The study factors did not interfere in the sanitary quality of the seeds. Under U. ruziziensis straw, the highest seed yield was obtained with the N dose of 115 kg.ha-1, while under sole maize and intercropping straw, the increase in yield was linear. Previous crop with U. ruziziensis, whether cultivated as sole crop or intercropped with maize, promotes greater physiological quality of common bean seeds, while top-dressing nitrogen fertilization does not interfere with quality, weight and protein content of the seeds.

Soybean seed size: how does it affect crop development and physiological seed quality?

Abstract: The size of soybean seeds needs further study because its relationships with physiological quality, field establishment, and yield are controversial. The aim of this study was to evaluate the effects of seed size on soybean establishment and seed physiological quality. In the field, a 2x3x3 factorial design was used, with two cultivars (M 5947 IPRO and 59HO124 IPRO), three seed sizes (5.5, 6.0, and 6.5 mm), and three sowing densities (280,000, 320,000, and 360,000 plants.ha-1). Agronomic traits and grain yield were evaluated. After harvest, only seeds from plots with a population of 320,000 plants were classified by size using circular sieves with 5.5-mm, 6.0-mm, 6.5-mm, and 7.0-mm mesh sizes. For the evaluation of physiological quality, a 2x4 factorial design was applied, with two cultivars and four seed sizes. Germination, seedling emergence, accelerated aging, seedling dry matter, and emergence speed index were evaluated. Smaller seeds gave rise to shorter plants with a lower first pod insertion height. Larger seeds had higher physiological quality. The M 5947 IPRO cultivar showed better seed performance and quality.

Nitrogen fertilization and sowing density on yield and physiological quality of wheat seeds

Abstract: The optimal combination between sowing density and nitrogen (N) fertilization rate is a challenge for the production of high-quality seeds, considering the diversity of genotypes and environments. This study aimed to evaluate the yield and physiological quality of wheat seeds as a function of sowing density and N rate, under different edaphoclimatic conditions. The experiment was carried out in three environments (Londrina, Cascavel, and Ponta Grossa) in a randomized block design with four replications, considering a 2 × 3 × 4 factorial arrangement composed of two genotypes (BRS Anambé and WT 15-025), three sowing densities (250, 350, and 450 seeds.m−2), and four N rates (0, 40, 80, and 120 kg.ha−1). The following seed features were evaluated: yield, first germination count, final seed germination, seedling emergence, emergence speed index, seedling length, and seedling dry matter. Seed yield varied as a function of environment and genotype. BRS Anambé produced seeds with higher physiological quality. The optimal combination between sowing density and N rate that provided the more suitable economic yield, without affecting the physiological quality of wheat seeds, varied with the environment and was estimated in 250 seeds.m−2 × 0 kg.ha−1 N for Londrina and Cascavel, and 350 seeds.m−2 × 18 kg.ha−1 N for Ponta Grossa.

Sowing depth and light intensity on the emergence and development of weeds

Weeds are one of the ecological factors that directly affect agricultural costs. Thus, understanding the emergence and development of these species is essential for the decision-making on weed control strategies. This study aims to evaluate the effect of different sowing depths and luminous intensities under field conditions on the emergence and development of the Acanthospermum australe (Loefl.) Kuntze and Ipomoea grandifolia (Dammer) O'Donell. Each species constituted one experiment, and the completely randomized design with four repetitions was adopted. The treatments were arranged in a 6 x 4 factorial scheme, with six sowing depths (0.5; 1.0; 2.0; 4.0; 8.0; and 12.0 cm) associated with four luminous intensities (100%, 70%, 50%, and 30% sunlight) obtained using shade cloths. The emergence of seedlings was evaluated daily to obtain the emergence and the emergence speed index. Plant height(length), the period until flower induction, and the dry matter of plants during flowering were also analyzed. A. australe and I. grandifolia emerge under the luminous intensities of 100, 70, 50, and 30% of solar radiation and in sowings depths up to 12.0 cm. Nevertheless, A. australe is the only one affected by luminous intensity, sowing depth, and the interaction between both factors in all the analyzes conducted. Luminous intensity reduction leads to lower development of I. grandifolia .

PHYSIOLOGICAL QUALITY OF CRAMBE SEEDS SUBMITTED TO DESICCATION WITH GLYPHOSATE AND STORED IN PAPER BAGS

Crambe (Crambe abyssinica Hochst) is an oilseed species with great economic potential, which is characterized by adapting to antagonistic environmental conditions and good rusticity. However, uneven seed maturation is a limiting factor for obtaining quality seeds. The use of desiccants for anticipating harvest can reduce seed exposure in the field after physiological maturation. Thus, the aim of this work was to evaluate the effect of different glyphosate desiccant doses applied before harvest on the physiological quality of crambe (Crambe abyssinica Hochst) seeds at different storage times. A randomized block experimental design in a 5 x 5 factorial scheme was used, with five Roundup® glyphosate doses (0.0, 0.5, 1.0, 1.5 and 2.0 g L-1) applied before harvest and five storage times (0, 3, 6, 9 and 12 months). After harvesting and processing, seeds were placed in paper bags and submitted to storage. During storage, seeds were submitted to physiological quality determination, where variables germination, seedling emergence, emergence speed index, first count, fresh mass and dry mass of seedlings and electrical conductivity were evaluated. The variables analyzed demonstrated that the physiological quality of crambe seeds was reduced with increasing herbicide doses.

Physiological quality and seed chemical composition of soybean seeds under different altitude

Seed quality plays an important role in the production of soybean. The objective of this study was to quantify the effects of producing region on seed chemical composition (oil, protein, and fatty acid content) and physiological quality of soybean. Twenty-eight soybean cultivars were evaluated in 2017/18 and 2018/19 crop seasons, and field trials were performed in different environments classified as high (846–963 m above sea level [asl]) or low altitude (336–480 m asl). The evaluated traits were percentage germination, accelerated aging, germination test, emergence speed index, and seed chemical composition (oil and protein contents, fatty acid profile). A significant effect of cultivar × environment interactions on all evaluated traits was observed. High-altitude environments produce soybeans with a greater protein content, and low altitudes yielded seeds with elevated oil content. Higher protein-content seeds have greater physiological potential, and seeds with higher oil content are negatively associated with physiological potential. High-altitude environments maximized the physiological quality of seeds. Linking genetics to target populations of environments ensures seed quality and benefits the entire soybean production chain.

Impacto do estágio de maturação sobre o ponto de colheita dos frutos e qualidade fisiológica de sementes de Physalis peruviana L.

Abstract The objective of this work was to evaluate the physical-chemical and physiological changes during the maturation of fruits and seeds of P. peruviana and to determine the best stage for harvesting in the Brazillian semi-arid conditions. The fruits of P. peruviana were collected at five stages of maturation based on the color of the epicarp: stage 1: light green fruit; stage 2: yellowish-green; stage 3: light yellow with green color in the area that connects to the calyx; stage 4: yellow; stage 5: yellowish-orange. Physical and physico-chemical (length, diameter, fresh weight, fruit and calyx color, and total soluble solids) characteristics were evaluated. The physiological characteristics of the seeds were evaluated for water content and dry weight, germination percentage, germination speed index, emergence percentage, emergence speed index were also determined. The highest values of fruit weight, width, length and total soluble solids were recorded from stage S5, although it did not differ from stages S3 and S4. P. peruviana seeds reached their maximum physiological quality from S3 stage. On the other hand, the harvesting of fruits with characteristics meeting the minimum standards required for sale and consumption in natura should be carried out when the fruit and the calyx appear completely yellow, in the S4 stage. These findings point out which attributes may help improve current methods for monitoring ripening of physalis, in particular the commercially important specie P. peruviana.

Genetic control of soybean seed quality using partial diallel

Abstract: The selection of soybean genotypes with seeds of high physiological quality is key to increasing the likelihood of establishment and success in the field and thus reaping higher yields. The aim of this study was to evaluate the genetic control of the physiological quality of soybean seeds from a partial diallel cross. Six previously selected soybean cultivars, group 1 (CD 201, CA 115, MS 8400) and group 2 (CD 202, Syn 1263, Syn 1279), were intercrossed by a partial diallel cross, totalizing 24 treatments. Seeds from these cultivars and crosses were evaluated for seed physiological quality based on germination tests, first germination count, accelerated aging, seedlings emergence, and emergence speed index. The lignin content in the soybean seed coat was evaluated. The effects on general and specific combining ability and reciprocal effects were analyzed. There were significant additive and non-additive effects of the genes on the seed quality traits and pronounced effects on the reciprocal traits, which suggest the presence of a maternal effect. Lignin content was not correlated with the physiological test results in the studied genotypes.

Do native plant species functionally similar to invasive species suffer more impacts from the invasion in seasonally dry tropical forests?

Abstract We tested the hypothesis that of the species studied in the Brazilian Semiarid, the ones most functionally similar to tree Azadirachta indicawould be more affected by this exotic species during germination and early development. At first, we produced a crude extract of A. indica fresh leaves in six different dilutions. We placed 25 seeds of four native species ( Cenostigma pyramidale, Libidibia ferrea, Mimosa caesalpiniifolia, and Amburana cearensis) to germinate in Petri dishes for each dilution, with four replicates for each species. We assessed: radicle length, emergence percentage, emergence speed index, and mean emergence time. We conducted an experiment in a greenhouse to assess how the exotic plant affected the development of individual plants of the studied species. We planted five seeds of each native species alone and five in interaction with the exotic species using ten 20-l buckets. The experiment lasted four months, and the functional attributes of the individuals were collected. Among the native species analyzed, according to the cluster analysis using the functional attributes of the species planted alone, M. caesalpiniifolia, C. pyramidaleand L. ferreawere functionally more similar to the exotic species. In the germination experiment, the extract affected only root length, regardless of the functional similarity. We noticed that only M. caesalpiniifoliahad its early development strongly inhibited when planted in interaction with the exotic species. Although the functional similarity between the exotic and the native species did not influence germination, it negatively affected the development.

Revestimento de sementes de milho com quitosana e biomassa microalgal

Microalgae has been studied as a biostimulant or biofertilizer in the development of agricultural crops, however its application is still incipient. In this work, the objective was to evaluate the potential use of chitosan associated with the cyanobacteria Aphanothece microscopica Nägeli in the coating of corn seeds (Zea mays L.) and its effect on the physiological potential and health quality of the seeds. A chitosan solution (2% m/v) containing biomass of the cyanobacteria Aphanothece microscopica Nägeli (0.1% m/v) was used, incorporated in two ways: fresh biomass (QBF) and biomass submitted to 4 freeze/thaw cycles (QBC). Seeds coated with chitosan without biomass (Q) and without coating (Control) were also analyzed. All treatments were evaluated for water content, 1,000-seed mass, germination, germination speed index, seedling length (root, shoot and total), cold test, seedling emergence, seedling emergence speed index, seedling height, root and shoot dry matter mass and health quality. The treatments QBF, QBC and Q did not significantly affect the 1,000-seed mass, germination, shoot length, cold test, emergence, height and root dry matter mass, but reduced the emergence speed index and shoot dry matter mass. QBC treatment tended to reduce the occurrence of Fusarium spp. and treatments Q, QBF and QBC the occurrence of Penicillium spp. in the seeds. The results indicate an antimicrobial potential of the coatings with minimal impact on the physiological potential of the seeds.