干旱区生态环境知识资源中心(Arid): Dormancy overcoming and germination test in Piptadenia stipulacea (Benth.) Ducke seeds

Arid

DOI	10.5935/1806-6690.20190040
	Dormancy overcoming and germination test in Piptadenia stipulacea (Benth.) Ducke seeds
	Benedito, Clarisse Pereira 1; Ribeiro, Maria Clarete Cardoso 2; de Paiva, Emanoela Pereira 1; de Sousa Medeiros, Hohana Lissa 1
通讯作者	Benedito, Clarisse Pereira
来源期刊	REVISTA CIENCIA AGRONOMICA
ISSN	1806-6690
出版年	2019
卷号	50 期号:2 页码:338-344
英文摘要	Piptadenia stipulacea (Benth.) Ducke presents slow and uneven germination due to integumentary dormancy. In addition, there are no standardized indications as to the temperature and substrate for conducting the germination test in the laboratory. Thus, the objective was to evaluate methods of dormancy overcoming, temperatures and substrates in the germination and vigor of P. stipulacea seeds. For this, two experiments were installed, the first one in a completely randomized design, with 4 replicates of 25 seeds and treatments to overcome dormancy were: immersion in water at 100 degrees C for 1; 2; 3; 4; 5 and 6 min; immersion in concentrated sulfuric acid (H2SO4 - 98% P.A) for 1; 4; 7; 10 and 13 min; scarification on sandpaper n degrees 80; in the region opposite the micropyle and intact seeds. At 21 days after sowing, emergency, emergency speed index and mean emergency time were evaluated. In experiment II, the experimental design was completely randomized in a 4 x 6 factorial scheme, with four replicates of 25 seeds, using the substrates between sand, paper, paper roll and vermiculite at temperatures of 20; 25; 30; 35; 40 degrees C and alternated 20-30 degrees C, the variables analyzed were first count, germination, mean germination time and germination speed index. In order to overcome seed dormancy of P. stipulacea, it is recommended that the pre-germinating treatment be set in the region opposite to the micropyle, and to evaluate the germination and vigor of these seeds, the temperature of 30 degrees C and 20-30 degrees C can be used with the roller substrate of paper.
英文关键词	Fabaceae Jurema-branca Semi-arid region
类型	Article
语种	英语
国家	Brazil
开放获取类型	Green Published, Green Submitted, gold
收录类别	SCI-E
WOS记录号	WOS:000454721900020
WOS关键词	SEEDLINGS ; QUALITY ; VIGOR
WOS类目	Agriculture, Multidisciplinary
WOS研究方向	Agriculture
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/218498
作者单位	1.Univ Fed Rural Semiarido UFERSA, Ctr Ciencias Agr, Mossoro, RN, Brazil; 2.Univ Integracao Int Lusofonia Afrobrasileira UNIL, Redencao, CE, Brazil
推荐引用方式 GB/T 7714	Benedito, Clarisse Pereira,Ribeiro, Maria Clarete Cardoso,de Paiva, Emanoela Pereira,et al. Dormancy overcoming and germination test in Piptadenia stipulacea (Benth.) Ducke seeds[J],2019,50(2):338-344.
APA	Benedito, Clarisse Pereira,Ribeiro, Maria Clarete Cardoso,de Paiva, Emanoela Pereira,&de Sousa Medeiros, Hohana Lissa.(2019).Dormancy overcoming and germination test in Piptadenia stipulacea (Benth.) Ducke seeds.REVISTA CIENCIA AGRONOMICA,50(2),338-344.
MLA	Benedito, Clarisse Pereira,et al."Dormancy overcoming and germination test in Piptadenia stipulacea (Benth.) Ducke seeds".REVISTA CIENCIA AGRONOMICA 50.2(2019):338-344.