Allelopathic activity of Piptadenia moniliformis Benth. on the physiological potential of seeds of Amburana cearensis Allem.

Joyce Naiara Da Silva,Monalisa Alves Diniz Da Silva,Elania Freire Da Silva,Rafael Mateus Alves

doi:10.14808/sci.plena.2021.731101

Abstract

The adoption of agroforestry systems or reforestation programs contributes to the economy of a region in a sustainable way, since the adopted species can be exploited by the cosmeceutical and pharmaceutical industries. For the establishment of plant species in a given area, studies are needed on the interaction that can develop between them, with emphasis on research on allelopathy. Given the above, the aim of this study was to evaluate the allelopathic effect of the aqueous extract of leaves of the native species Piptadenia moniliformis on the initial development of the forest species Amburana cearensis. The aqueous extract was used at different concentrations. (0 - water, 25, 50, 75 and 100%), adopting a completely randomized design. The following characteristics were evaluated: emergence percentage, emergence speed index, mean emergence time, shoot and root length and total shoot, root and total dry part of normal seedlings. The 100% concentration of the aqueous extract of P. moniliformis leaves reduced the emergence percentage of A. cearensis seedlings. A smaller number of normal seedlings was observed at concentrations of 75 and 100%. The initial development of seedlings was hampered by the increase in extract concentrations. The aqueous extract of fresh leaves of P. moniliformis provides a negative allelopathic effect for both emergence and early development of A. cearensis seedlings, therefore intercropped cultivation among the forest species is not recommended.

Highlights

Natural products, especially those derived from plants, have been used in human health since the beginnings of medicine [1]
Plants are responsible for the biosynthesis of a wide variety of secondary metabolites, and these metabolites form the basis of many commercial pharmaceutical drugs, as well as herbal remedies derived from medicinal plants [2]
The biological diversity of this biome houses species characterized by a multiplicity of uses, the Fabaceae family accounts for about a third of the richness of this biome [3]

Summary

Introduction

Especially those derived from plants, have been used in human health since the beginnings of medicine [1]. In the Caatinga region of northeastern Brazil, there are several species of plants with a medicinal use. The biological diversity of this biome houses species characterized by a multiplicity of uses, the Fabaceae family accounts for about a third of the richness of this biome [3]. It is popularly known as "cumaru,” “amburana de cheiro” and “cumaru-do-Ceará." It may reach up to 10 m high in the Caatinga regions and up 20 m in forest areas. It occurs naturally from the Northeast to Central Brazil in Caatinga regions and in the rain forest of Minas Gerais in the Rio Doce valley [4]

Objectives

Methods

Results