Morphometry of Tabebuia aurea (Manso) Benth. &amp; Hook. f. ex S. Moore subjected to different substrates

Maria José De Holanda Leite,Nathany Alves De Andrade,Cosme Ângelo Da Silva,Yasmim Yathiara Gomes Araújo Morais,Alciênia Silva Albuquerque,Carmen Hellen Da Silva Rocha,Elenilton Lessa Silva Dos Santos,Natália Helena Malta Soares,Iana Karla Ribeiro Dos Santos,João Paulo Fernandes De Moraes,Denise Maria Santos,Pedro Henrique De Melo Cavalcante

doi:10.53660/conj-238-813

Abstract

The morphometry and quality of seedlings of tree species is of fundamental importance to achieve success in reforestation or commercial exploitation project. Due to the lack of information about the ideal substrate for the production of craibeira seedlings and taking into account the diversification of the use of Tabebuia aurea production of native seedlings for the recovery of degraded areas, this work was conducted with the objective of evaluating the development of seedlings of this species produced with bovine manure and coconut fiber. The present work was carried out at the plant ecophysiology laboratory at the Agrarian Engineering and Sciences Campus (CECA), in Rio Largo, north-region of the state of Alagoas. Four treatments were used, which consisted of a mixture of soil + organic material, in the proportion 3:1. The materials used were tanned bovine manure (ESCB), coconut fiber (CFS) and control (soil). Whose proportions of the treatments were: T1: soil + 0% coconut fiber; T2: soil + 11% coconut fiber; T3: soil + 22% coconut fiber; T4: soil + 33% coconut fiber and T5: soil + 33% cattle manure. Macro and micronutrient analyses of the substrates used were performed. To meet the work objective, the following parameters were evaluated: plant height, stem diameter, number of leaves and leaf dry matter, stem and root and chlorophyll content index. It can be concluded that the substrates chosen for evaluation showed few significant differences in relation to seedling development; the mixture of treatment 2 (soil+coconut fiber 11%) provided a higher percentage of survival and the quality of seedlings were higher; The substrate treatment 4 (soil+coconut fiber 33%) showed much lower results in all evaluated results. However, statistically there were no significant differences in relation to the other treatments and the presence of bovine manure (soil+bovine manure 33%) results in benefits such as greater nutrient supply and possible reduction of seedling costs.

Highlights

The demand for seedlings of native forest species has increased every year, mainly due to the need to reforest or remake degraded areas, aiming to minimize environmental impacts and biodiversity maintenance (FERNANDES et al, 2000).To adequately meet this demand, there is a need to produce good quality seedlings, since the success of a planting depends directly on the genetic potentialof the seeds and the quality of the seedlings produced (SANTOS et al, 2000)
Due to the lack of information about the ideal substrate for the production of craibeira seedlings and taking into account the diversification of the use of Tabebuia aurea production of native seedlings for the recovery of degraded areas, this work was conducted with the objective of evaluating the development of seedlings of this species produced with bovine manure and coconut fiber
The highest mean occurred in the T2 treatment, differentiating from the other

Summary

Introduction

The demand for seedlings of native forest species has increased every year, mainly due to the need to reforest or remake degraded areas, aiming to minimize environmental impacts and biodiversity maintenance (FERNANDES et al, 2000) To adequately meet this demand, there is a need to produce good quality seedlings, since the success of a planting depends directly on the genetic potentialof the seeds and the quality of the seedlings produced (SANTOS et al, 2000). The ease of production, low cost and high availability are other additional advantages presented by this type of substrate (CARRIJO et al, 2002) It is a substrate of easy handling, with good water absorption capacity, does not require daily reumding and provides good germination performance of seeds (FAVALESSA, 2011, p 21). Organic fertilization with bovine manure, in addition to improving drainage and substrate aeration, increases water storage capacity, nutrient levels and the population of microorganisms beneficial to the substrate and plant, stimulating root development (MALAVOLTA et al, 2002)

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Conclusion