Banca de QUALIFICAÇÃO: SURAJO ISAH ALIYU

Uma banca de QUALIFICAÇÃO de MESTRADO foi cadastrada pelo programa.
DISCENTE: SURAJO ISAH ALIYU
DATA: 16/02/2023
HORA: 09:00
LOCAL: Online
TÍTULO:

THE USE OF FOLIAR BIOSTIMULANT MAY IMPROVE TOLERANCE TO WATER DEFICIT IN COMMON BEAN (Phaseolus vulgaris)?

PALAVRAS-CHAVES:

Foliar, Biostimulants, water deficit, Tolerance

PÁGINAS: 51
GRANDE ÁREA: Ciências Agrárias
ÁREA: Agronomia
RESUMO:

In order to feed the growing global population, food production must be increased immediately. Common bean (Phaseolus vulgaris)  has been greatly recognized and accepted around the world as a source of food due to the high quality of protein, vitamins, complex carbohydrates, and minerals (Ca, Mg, K, Cu, Fe, Mg, and Zn) required for human health. Common bean pods and seeds can be consumed in a variety of forms, including fresh, dry, canned and pickled. Common bean can be consumed as food and has a lot of health benefit as it contains compounds such as flavonoids, phenolic acid, coumestrol and galactooligosaccharides that may have protective effects against cancer. Common bean seeds are a good source of the lectin and amylase inhibitors (AI) needed to make insecticides. Common bean byproducts serve as feed for animals and for other industrial uses like the production of commercial animal feed. Additionally, it helps the big producing nations economically. It is well recognized that a variety of abiotic factors, including drought, salinity and high temperatures, reduce agricultural productivity. Drought stress is the most challenging issue to agricultural productivity and has a pronounced negative effect on plant growth and development, resulting in damages to productivity, making it difficult to maintain a sustainable agricultural system worldwide. In order to mitigate the negative impact of drought on common bean production, a cost-effective approach like foliar application of biostimulants strategy will be adopted. In this study, we aim to assess the effect of foliar application of Vislumbre biostimulant in improving tolerance to water deficit of common bean. The common bean BRSMG MARTE will be subjected to foliar fertilization treatments of an organic fertilizer (Vislumbre®; AgroPrime,Brazil) at V4 stage (pre-Anthesis stage) when the seedling presents first three trifoliate leaves in a dose equivalent to 0.4 L ha^-1. The second application of the same quantity of products will be applied seven days after the first application, this is to improve resistance to water deficit. Immediately after the second application, the first data will be collected and thereafter irrigation resume for water deficit treatments for five days after which second data will be collected. For both collection data on gas exchange, water potential, Relative water content, leaf area, number of flowers and shoot biomass will be collected. Additionally, production data such as number of seeds will also be collected. The experimental treatments are composed of two (2) factors arranged in a factorial combination (2x2) in a completely randomized design (CRD). The experiment will consist of four treatments, T1-T4 with five (5) replications. The factors are I. water availability – well watered and water withholding; ii. Foliar fertilization – with foliar fertilization and without foliar fertilization. The water withholding will be initiated atV4 stage, forty- three (43) days after sowing when the seedling attained three trifoliate leaves. The soil will be saturated with 1000ml of water and subjected to water with holding after twenty-four hours (24) hrs when the soil is at field capacity. Afterward, seedlings will be subjected to biochemical analysis such as lipid peroxidation estimation (MDA), and enzymatic activity of nitrite reductase (NR) and other enzymes involved in nitrogen metabolism and as well as organic compounds (proline and glycine-betaine). At the end of the study, we believe foliar application of biostimulants will improve tolerance to water deficit of common bean seed by enhancing the activities of enzymatic and non-enzymatic antioxidants.

MEMBROS DA BANCA:
Externo à Instituição - Abdulrazak Ibrahim - ABU (Membro)
Externo à Instituição - CRISTINA RODRIGUES GABRIEL SALES - UC (Membro)
Presidente - PAULO EDUARDO RIBEIRO MARCHIORI (Membro)
Externo à Instituição - Zulma Catherine Cardenal Rubio - UPTC (Suplente)