Planta Daninha (2010) 28, 41-46

L.W. Marcolini, L.B. Carvalho, M.B. Cruz, P.L.C.A. Alves and A.B. Cecílio Filho (2010)
Interferência de caruru-de-mancha sobre características de crescimento e produção da beterraba
[Slender amaranth interference in table beet growth and production characteristics]
Planta Daninha 28 (1), 41-46
Abstract: Table beet (Beta vulgaris), an important vegetable cultivated in Brazil, is very susceptible to weed interference, with Amaranthus viridis being one of the main species found in horticultural areas. The objective of this research was to study the response of table beet to competition at different densities of A. viridis, based on evaluation of crop growth and production characteristics. An experiment was carried out in 0.25 m² pots in Jaboticabal-SP, Brazil, with 8 table beet plants per pot kept in constant coexistence with 0, 1, 2, 3, 4 and 6 plants per pot of A. viridis. The table beet crop was very susceptible to interference of A. viridis, with its leaf area, number of leaves, leaf dry mass, root mean diameter and root fresh mass being significantly reduced even under low weed densities, with root fresh mass being the most sensitive to interference.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
(original language: Portuguese)
Full text of article
Database assignments for author(s): Pedro Luís C. A. Alves

Research topic(s) for pests/diseases/weeds:
general biology - morphology - evolution
damage/losses/economics

---

Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Amaranthus viridis (weed)	Beet/sugarbeet (Beta vulgaris)	Brazil (south)