GERMINAÇÃO E VIGOR DE SEMENTES DE Opuntia ficus-indica Mill. APÓS TRATAMENTOS PARA SUPERAR A DORMÊNCIA
2009
ROBERTA SALES GUEDES | EDNA URSULINO ALVES | EDILMA PEREIRA GONÇALVES | JEANDSON SILVA VIANA | MACIO FARIA DE MOURA
Opuntia ficus-indica Mill. is cultivated extensively a fodder species and for fruit in many countries. The seeds have a lignified covering that protects them against adverse environmental factors, however it hinders germination. Objective was to determine to determine an efficient, practical and low-cost methodology to break seed dormancy. These were submitted to the following treatments: control (intact seeds) (T1); mechanical scarification with number 80 water sandpaper for ten minutes (T2); sulfuric acid immersion for 3, 5 and 10 minutes (T3, T4 e T5, respectively); e 80ºC water immersion for 3, 5 e 10 minutes (T6, T7, e T8, respectively). The experimental design was entirely random, with eight treatments and four repetitions. The appraised characteristics were: emergence percentage first count and velocity index and seedling dry mass. The mechanical scarification with number 80 water sandpaper for ten minutes effectively broke the O. ficus indica seed dormancy.
Show more [+] Less [-]AGROVOC Keywords
Bibliographic information
This bibliographic record has been provided by Directory of Open Access Journals
