Physiological Potential Evaluation of Myracrodruon urundeuva Stored Diaspores

Vanessa Renata De Sousa Barboza,Monalisa Alves Diniz Da Silva,Luan Danilo Ferreira De Andrade Melo,Jeandson Silva Viana,Edilma Pereira Gonçalves

doi:10.5539/jas.v10n9p125

Abstract

The conservation of seeds in an appropriate location combined with the utilization of rapid tests for monitoring the physiological aspects is essential for quality seedlings. Thus, the study aimed to evaluate the behavior of Myracrodruon urundeuva diaspore under different periods and storage environments, and verify the testing of individual exudate pH in the physiological monitoring. The experimental design was completely randomized, factorial 2 × 8 (8 periods of storage and 2 storage environments) with four replications of 25 diaspores, using the Tukey test at 5% probability for average comparisons. After analysis of variance, it was performed regression analysis for the quantitative factor and simple Pearson correlation test. The variables analyzed were moisture content, seedling emergence (E) emergence velocity index (IVE), mean emergence time (TME) and the pH of the individual exudate. The results of E, IVE, TME tests indicated that the Myracrodruon urundeuva diaspores could be stored for ten months in room fridge, with low vigor loss. The pH test individual exudate showed lower estimates of simple Pearson correlation with the emergence test, not monitoring the physiological potential of Myracrodruon urundeuva diaspores.

Highlights

Myracrodruon urundeuva Allemão, belonging to the family Anacardiaceae, is popularly known as aroeira, aroeira-do-sertão, aroeira-do-campo, aroeira-da-serra, aroeira-preta, urindeúva, arendiúva and urundeúva (Lorenzi, 2008)
In the execution of the pH test of the individual exudate two indicator solutions were used: (1) phenolphthalein solution, composed of 1 g of phenolphthalein dissolved in 100 ml of absolute alcohol, plus the addition of 100 ml of distilled and boiled water; (2) solution of sodium carbonate, composed of 8.5 g L-1 of the solute dissolved in distilled water and boiled
The diaspores of Myracrodruon urundeuva were kept at levels acceptable for storage for 14 months in the two environments studied (Table 1)

Summary

Introduction

Myracrodruon urundeuva Allemão, belonging to the family Anacardiaceae, is popularly known as aroeira, aroeira-do-sertão, aroeira-do-campo, aroeira-da-serra, aroeira-preta, urindeúva, arendiúva and urundeúva (Lorenzi, 2008). According to Marcos Filho and Kikuti (2006) the vigor assessment is necessary to estimate seed performance potential when environmental conditions deviate from the most appropriate ones. For this it is necessary the aid jas.ccsenet.org. In view of the above, the relevance of information on the seeds of forest species in relation to the physiological aspects In this sense, the present study had as objectives to evaluate the behavior of diaspores of Myracrodruon urundeuva under different periods and storage environments

Material and Methods

Water Content

PH Test of the Individual Exudate

Statistical Analysis

Results and Discussion

Conclusions