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- Title
Morfologia da germinação de sementes de Senna cana (Nees & Mart.) H.S. Irwin & Barneby.
- Authors
de MEDEIROS, Jordânia Xavier; FELICIANO, Ana Lícia Patriota; de MEDEIROS, Jamile Erica; SANTOS, Helder Henrique Duarte; MATOS, Valderez Pontes
- Abstract
The objective of the study was to describe the germination morphology of normal seedlings of Senna cana (Nees & Mart.) H. S. Irwin & Barneby and, describe the abnormal seedlings. The seeds were collected in the Vale do Catimbau National Park, Buíque - PE. The seeds were scarified, disinfested and washed with deionized water. Four replicates of 25 seeds were used, sown on paper towel and put to germinate in B.O.D at 20-30ºC. The emission of the radicle occurred on the third day after sowing, beige yellowish color, tender, cylindrical, with root hairs. From 7th to 11th day, hypocotyl elongation and secondary root development. The cylindrical hypocotyl, herbaceous, yellow color, with short trichomes. On the 17th day, the appearance of the pubescent epicotyl. At 45 days, the pivotal root system, with 3.0 to 3.5 cm length of blackish brown coloration. Hypocotyl 2.5-3.0 cm, cylindrical, straight or tortuous, light green at apex and yellow at base. Persistent cotyledons, slightly pendulous limb, dark green on both cheeks and obvious veining. The prototyphs composed, pinnate, alternate, petiolate, light green, with two leaflets and many trichomes. The S. cana seed presents epigene germination, the seedlings being classified as phanerocotonares.
- Publication
Nativa, 2019, Vol 7, Issue 6, p784
- ISSN
2318-7670
- Publication type
Article
- DOI
10.31413/nativa.v7i6.8626