Banca de DEFESA: VITÓRIA VILELA RODRIGUES

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : VITÓRIA VILELA RODRIGUES
DATE: 24/08/2023
TIME: 13:30
LOCAL: Sala virtual
TITLE:

Biostimulants based on complexed collagenous proteins in foliar application and seed treatment in soybean crop

KEY WORDS:

amino acids, foliar fertilization, bioinputs, vigor

PAGES: 50
BIG AREA: Ciências Agrárias
AREA: Agronomia
SUBÁREA: Fitotecnia
SPECIALTY: Manejo e Tratos Culturais
SUMMARY:

Soybean is a crop of great importance in the world's agricultural system, and currently Brazil is the largest producer of this oilseed, which has been increasing production over the years due to the correct use of the soil, genetic improvement combined with the various technological advances. One of the technologies available to improve soybean production is foliar fertilization, in order to make nutritional adjustments, mitigate stress, and supplement the crop in the phenological stages in which there is a greater demand for nutrients. This type of fertilization can be done with the various nutritional sources that exist on the market, an example is amino acid-based bioinputs, which can also be applied via fertirrigation and seed treatment. The objective of this work was to evaluate the physiological effect of proteins based on amino acids in foliar fertilizers and in the treatment of soybean seeds. The experiments were carried out at the Federal University of São João del Rei, on the campus of Sete Lagoas - Minas Gerais state, Brazil. The first work was conducted in the field in a randomized block design, in a 3 x 4 factorial scheme, with three replications. The treatments consisted of the application of isolated and combined fertilizers, at different soybean phenological stages. The factors consisted of: control, salts, salts + amino acids and only amino acids with applications in stages V4, R2, V4+R2. The data found were subjected to analysis of variance using the F. Productive, morphological and production characteristics of soybean were evaluated. The second work was carried out in germination seedbed, where 200 seeds were sown per experimental unit in four repetitions of 52 seeds. The Germination (GER) and Vigor test was carried out through the First Germination Count (PCG). The design was in completely causalized Blocks and parameters related to emergence rates, average shoot and root length, average total length, average shoot and root ratio, uniformity index, growth, vigor and corrected vigor were evaluated. The results showed that the use of biostimulants based on complexed collagenous proteins in foliar application did not result in a significant effect for any of the soybean crop variables. In relation to the experiment with seed treatment, there was no significant effect of the used doses of biostimulants in aged and non-aged soybean seeds for the characteristics related to germination and emergence in the field and in variables of initial growth of the soybean crop. Biostimulants based on complexed collagenous proteins do not influence the soybean crop in applications at different stages and doses in seed treatment.

BANKING MEMBERS:
Interno - 1973686 - LEONARDO LUCAS CARNEVALLI DIAS
Interno - 2253801 - AMILTON FERREIRA DA SILVA
Externa à Instituição - NAYARA NORRENE LACERDA DURÃES - IFPR