التفاصيل البيبلوغرافية
| العنوان: |
Occurrence of Weeds in Areas Submitted to Tillage Managements for Soybean Cultivation in the Cerrado of Roraima |
| المؤلفون: |
MENEZES, P.H.S., ALBUQUERQUE, J.A.A., SMIDERLE, J.O., MEDEIROS, R.D., ALVES, J.M.A., GIANLUPPI, D. |
| المصدر: |
Planta Daninha. January 2019 37 |
| بيانات النشر: |
Sociedade Brasileira da Ciência das Plantas Daninhas, 2019. |
| سنة النشر: |
2019 |
| مصطلحات موضوعية: |
Glycine max, phytosociological parameters, savanna |
| الوصف: |
Weeds from soils submitted to different tillage managements were identified in two consecutive years of soybean cultivation in the Cerrado of Roraima. The study was carried out in three areas: native area (NA), mechanically mowed native area (MA), and limed area (LA). A descriptive analysis of the phytosociological parameters relative density (Drr), relative frequency (Frr), relative dominance (Dor), importance value index (IVI), and index of relative importance (IRI) was performed to interpret the results. The weed similarity index (SI) was also calculated in the assessed areas. The highest relative frequencies were observed for Trachypogon plumosus (40.92%), Bulbostylis capillaris (18.52%), and Spermacoce capitata (18.33%) in the native area and T. plumosus (24.69%), Cyperus flavus (24.69%), and S. capitata (18.52%) in the mowed area. Among the species collected in the areas, the botanical families Poaceae, Cyperaceae, Fabaceae, and Rubiaceae are the most representative. The used managements contribute to the emergence of new species of spontaneous plants and weeds in the Cerrado of Roraima. |
| نوع الوثيقة: |
article |
| وصف الملف: |
text/html |
| اللغة: |
English |
| تدمد: |
0100-8358 |
| DOI: |
10.1590/s0100-83582019370100079 |
| URL الوصول: |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582019000100276 |
| Rights: |
info:eu-repo/semantics/openAccess |
| رقم الانضمام: |
edssci.S0100.83582019000100276 |
| قاعدة البيانات: |
SciELO |