PERMEABILITY TO WATER AND VIABILITY IN HETEROMORPHIC COLOR SEEDS OF Bowdichia Virgilioides KUNTH

IF 0.6 4区 农林科学 Q4 FORESTRY Revista Arvore Pub Date : 2021-08-04 DOI:10.1590/1806-908820210000025
R. G. Silva, D. G. Santana, C. C. Guimarães, Edvaldo A. A. Silva
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Abstract

ABSTRACT Species that produce seeds with a rigid integument represent a serious problem because their impermeable coat restricts the entry of water, which makes germination difficult. The heteromorphism of the integument in Bowdichia virgilioides causes water imbibition to vary substantially and, therefore, the objective of this work was to study the relation of seed coat color with permeability and viability in Bowdichia virgilioides. Seeds were separated into five different colors (yellowish-orange, orange, orange/reddish, reddish, and rusty red) and the following parameters were analyzed: water absorption, germination, mortality, viability, synchrony, and maximum potential of germination. The color was a determining factor for most of the evaluated parameters. The seeds with yellowish or orange/reddish coats tend to be little permeable to water while seeds with reddish or rusty red coats are highly permeable. The results indicated that seeds with reddish color had greater physiological potential indicating a probable relationship with the maturation point of the species. However, in the seeds of the species studied, irrespective of coloring, germination was late with low synchrony and low daily seed germination count, typical characteristics of dormancy.
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黄花鲍德温异型色种子的透水性和活力
具有刚性被盖的种子是一个严重的问题,因为它们不透水的被盖限制了水分的进入,这使得发芽困难。由于被膜的异型性导致其吸水性发生了很大的变化,因此本研究的目的是研究包皮颜色与包皮透性和活力的关系。将种子分为黄橙色、橙色、橙/红、红色和锈红色5种颜色,并对其吸水率、发芽率、死亡率、活力、同步率和最大发芽率进行分析。颜色是大多数评估参数的决定因素。带有黄色或橙色/红色外壳的种子对水的渗透性很小,而带有红色或锈红色外壳的种子渗透性很强。结果表明,红色种子具有更大的生理潜能,这可能与该物种的成熟点有关。然而,在所研究的物种中,无论颜色如何,种子萌发都较晚,同步性低,日种子萌发数低,具有典型的休眠特征。
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来源期刊
Revista Arvore
Revista Arvore FORESTRY-
CiteScore
1.00
自引率
0.00%
发文量
32
审稿时长
4-8 weeks
期刊介绍: A Revista Árvore é um veículo de comunicação científica da Sociedade de Investigações Florestais – SIF. O jornal é de acesso gratuito, revisado por pares, que publica bimestralmente trabalhos científicos originais no campo da Ciência Florestal. As áreas temáticas para publicação são: Ambiência e Conservação da Natureza, Manejo Florestal, Silvicultura e Tecnologia da Madeira e Utilização de Produtos Florestais. A política editorial visa manter alta conduta ética em relação à publicação e aos seus funcionários, rigor na qualidade dos artigos científicos, seleção de revisores qualificados, respeito profissional aos autores e processo de tomada de decisão imparcial. A Revista Árvore publica artigos apenas em inglês. Artigos de revisão podem ser publicados se houver uma discussão relevante resumindo o estado da arte sobre o assunto. A revisão estrita da literatura não é aceita.
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