Micronutrients Deficiency on the Nutritional Status of Banana Prata Seedlings

Abstract

-The knowledge of the requirements and micronutrients efficiency in banana is relevant to the development of fertilizer recommendations. This study aimed to evaluated requirements and nutritional efficiencies of banana seedlings submitted to omission of micronutrients in nutritive solution. Treatments were complete nutritive solution and solution with individual omission of B, Cu, Fe, Mn and Zn, and two Prata-Anã and BRS Platina hybrid genotypes. Leaf area, dry matter of leaves, rhizome, roots and total and micronutrient contents were determined. With results, the following indexes were calculated: uptake, transport and micronutrient utilization efficiency. B deficiency effected more intensely the growth of both banana genotypes. The nutrient uptake corresponded to the following sequence: Fe > Mn > Zn > B > Cu, which reflects the plant requirements. The BRS Platina hybrid showed higher B, Fe and Zn absorption efficiency in relation to Prata Anã cultivar, which had higher Cu absorption efficiency. BRS Platina hybrid showed higher efficiency in the transport of Fe and Mn, while Prata Anã only for Cu. Prata Anã cultivar showed higher micronutrient utilization efficiency in complete treatment and treatment with omission of micronutrients. Index terms: Musa spp.; mineral nutritional; micronutrient omission; fruit trees. DEFICIÊNCIAS DE MICRONUTRIENTES NO ESTADO

Influência do número de rebentos na produção de mudas de bananeira

“…Ainda, segundo os mesmos autores, o número de folhas dos tratamentos com zero, um e dois rebentos não diferiram entre si, mas a partir de três rebentos, por planta, o número de folhas diminuía. Por outro lado, Souza et al (2016) observaram que os pseudocaules eram mais alto com menor número de rebentos, em um experimento realizado com a cultivar de banana Zelig.…”

Micronutrient Dynamics on Addition of a Rapid Organic Fertilizer Produced from Degradable Waste in Banana

“…The effect of Zn and B in increasing fruit set and number of fruits have been reported by Saadati et al, (2016). B is instrumental in cell wall formation, differentiation of xylem, a regulatory role in transportation of carbohydrates, nucleic acid synthesis and hormonal responses (Souza, 2016). However the comparatively lower Cu concentration in the index leaf is suggestive of the enhanced utilisation of Cu in the vegetative phase rather than at the flowering and fruit setting stages.…”

Accumulation and distribution of micronutrients in banana cv. Williams (Musa AAA Simmonds) with different doses of nitrogen

“…These variations could be explained by interactions of environmental factors, soil, cultivar, and crop management, especially fertilization (Robinson and Galán, 2012). Additionally, the contents of elements in the pseudostem could vary between the cultivars depending on morphological differences in the distribution and configuration of vascular elements in the pseudostem (Souza et al, 2016).…”

“…This question should be answered by taking into account the importance of micronutrients in banana growth (Torres, 2016). Micronutrient applications affect the growth of leaves (Souza et al, 2016), roots (Liu et al, 2019), and pseudostems (Kumar et al, 2020) and banana production (Robinson and Galán, 2012). The contents of Fe, Mn, Zn, Cu, and B in plant organs estimate the plant nutrient status with the DRIS method (Villaseñor et al, 2020).…”