Initial interference of Cyperus rotundus L. in pre-sprouted seedlings of sugarcane cultivars RB985476 and IACSP95-5000

Weeds compete with plants for water, light, nutrients and space. In sugarcane, planting pre-sprouted sugarcane seedlings (PSS) may mean a change in weed interference and management. The aim of this study was to generate information on the interference of Cyperus rotundus L. in PSS. Two experiments w...

Full description

Saved in:
Bibliographic Details
Published inAgronomía colombiana Vol. 36; no. 3; pp. 210 - 216
Main Authors Giraldeli, Ana Ligia, Carrara de Brito, Felipe, Moreira Silva, André Felipe, Apolari Ghirardello, Giovani, Viviani Pagenotto, Ana Carolina, Pereira de Moraes, Júlia, Victoria Filho, Ricardo
Format Journal Article
LanguageEnglish
Portuguese
Published Bogota Universidad Nacional de Colombia 01.09.2018
Universidad Nacional de Colombia, Facultad de Agronomía
Centro Editorial of Facultad de Ciencias Agrarias, Universidad Nacional de Colombia
Subjects
AGRONOMY
competition
Cultivars
Cyperaceae
Cyperus rotundus
densities
Design
Factorial design
Leaf area
Leaves
Nutrients
Planting
Reduction
Saccharum officinarum
Saccharum spp
Seedlings
Sugarcane
Tillers
Weeds
Saccharum spp
competition
densidades
densities
competencia
Cyperaceae
Online AccessGet full text

Cover

More Information
Summary:Weeds compete with plants for water, light, nutrients and space. In sugarcane, planting pre-sprouted sugarcane seedlings (PSS) may mean a change in weed interference and management. The aim of this study was to generate information on the interference of Cyperus rotundus L. in PSS. Two experiments were carried out in a completely randomized design, one with cultivar RB985476, with seven densities of C. rotundus (0, 17, 35, 70, 140, 280 and 560 plants m-2), and the second with cultivar IACSP95-5000, with four densities of C. rotundus (0, 70, 140 and 280 plants m-2). For this weed, a 2x6 factorial design was used for the experiment with RB985476 and a 2x3 design was used for IACSP95-5000, the first factor being absence and presence of the crop, and the second factor the densities of the species. Biometric evaluations of height, diameter, number of tillers and leaves, leaf area and dry mass were carried out. The PSS had a reduction in height, number of leaves and leaf area in the main till at 60 d after planting (DAP) in RB985476. For the IACSP95-5000 cultivar, there was no reduction in the analyzed variables. The average dry mass per plant of C. rotundus decreased as the density of the species increased in the absence of PSS.
ISSN:0120-9965
2357-3732
DOI:10.15446/agron.colomb.v36n3.73317