GERMINATION AND VIGOR OF Dimorphandra mollis BENTH. SEEDS UNDER DIFFERENT TEMPERATURES AND SUBSTRATES

被引：16
|
作者：
Pacheco, Mauro Vasconcelos [1 ]
Mattei, Vilmar Luciano [2 ]
Matos, Valderez Pontes [3 ]
de Moura Sena, Lucia Helena [3 ]
机构：
[1] Univ Fed Rio Grande do Norte, BR-59072970 Natal, RN, Brazil
[2] Univ Fed Pelotas, Pelotas, Brazil
[3] Univ Fed Rural Pernambuco, Pernambuco, Brazil
来源：
REVISTA ARVORE | 2010年 / 34卷 / 02期
关键词：
Forest seeds; Physiological quality and Fava d'anta; LIGHT;
D O I：
10.1590/S0100-67622010000200002
中图分类号：
S7 [林业];
学科分类号：
0829 ; 0907 ;
摘要：
The Dimorphandra mollis Benth. - Caesalpiniaceae is a native forest species coming from the Cerrado and Caatinga due to its economical and ecological use, which justifies the studies on seed germination. In this work, germinative performance of D. mollis seeds were studied in different conditions of temperature regime and substrate. The experimental delineation used was completely randomized in factorial 4 x 4 (4 substrates-sand, coconut fiber, vermiculite and paper towel; and 4 temperatures: 25, 30, 35 and 20-30 degrees C), with four replications of 25 seeds each. The following parameters were evaluated: seed moisture content, final germination, first germination count, germination speed index, length and dry matter weight. The best germination and vigor is obtained at 30 and 35 degrees C. The substrates paper towel and vermiculite allow satisfactory germinative performance of seeds, being suitable to evaluate the physiological quality of D. mollis seeds.
引用
收藏
页码：205 / 213
页数：9
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