GERMINATIVE PERFORMANCE OF MULUNGÚ SEEDS (Ormosia grossa Rudd) AFTER DORMANCY OVERCOMING

IF 0.6 4区农林科学 Q4 FORESTRY

Revista Arvore Pub Date : 2021-01-01 DOI:10.1590/1806-908820210000032

R. D. Pinheiro, Vanessa Nogueira Soares, G. I. Gadotti, E. D. D. Silva, A. Almeida

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引用次数: 3

Abstract

ABSTRACT Ormosia grossa Rudd is an Amazonian species that presents bicolor seeds, allowing its exploration for handicraft and decoration making. This paper aimed to analyze the influence of different methods to overcome dormancy on the germinative performance of Ormosia grossa seeds. To conduct the experiment, the following treatments were established: T1= scarification with 80-grit sandpaper and water immersion at room temperature for 24 hours; T2= puncturing and water immersion at room temperature for 24 hours; T3= scarification with 80-grit sandpaper; T4= puncturing; T5= immersion in water heated to 80 ºC for five minutes, and T6= Control - seeds without any treatment. The seeds germinate slowly and irregularly. Depending on the treatment, germination started between 10 and 32 days and, if there is no adequate pre-germinative treatment to overcome dormancy, it can exceed such time. The phytomass performance and seedling lengths were superior in the T1 and T2 treatments. The scarification by abrasiveness and puncturing treatments are efficient to overcome dormancy, thus increasing the speed (3.76 and 3.12) and germination percentage (98% and 96%) after ten days. The control was 0.01 (IVG), and germination of 37%. Therefore, it is recommended the method of scarification with sandpaper followed by seed imbibition in water at room temperature for 24 hours, as it provides the best seedling performance and germination.

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MULUNGÚ种子克服休眠后的发芽性能

红豆(Ormosia grossa Rudd)是亚马逊地区的一种植物，种子呈双色，可用于手工艺和装饰制作。本文旨在分析不同的克服休眠方法对红豆种子发芽性能的影响。为进行试验，确定了以下处理:T1=用80粒砂纸刻痕，室温水浸泡24小时;T2=穿刺，室温水浸泡24小时;T3= 80粒砂纸刻痕;T4 =刺穿;T5=在加热至80ºC的水中浸泡5分钟，T6=对照组-未经任何处理的种子。种子发芽缓慢而不规则。根据处理的不同，萌发开始于10至32天之间，如果没有充分的发芽前处理来克服休眠，萌发可能会超过这个时间。T1和T2处理的植株质量性能和幼苗长度均较好。磨蚀和穿刺处理均能有效克服休眠，10 d后种子萌发速度提高3.76%和3.12%，发芽率提高98%和96%。对照为0.01 (IVG)，发芽率为37%。因此，建议先用砂纸刻蚀，然后在室温下浸泡24h，以获得最佳的出苗性能和发芽率。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Revista Arvore FORESTRY-

CiteScore

1.00

自引率

0.00%

发文量

审稿时长

4-8 weeks

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