Interactions Between Weedy Rice and Cultivated Rice in Italy

Submitted: 27 October 2010
Accepted: 27 October 2010
Published: 15 December 2009
Abstract Views: 1367
PDF: 628
Publisher's note
All claims expressed in this article are solely those of the authors and do not necessarily represent those of their affiliated organizations, or those of the publisher, the editors and the reviewers. Any product that may be evaluated in this article or claim that may be made by its manufacturer is not guaranteed or endorsed by the publisher.

Authors

Field studies were carried out in 1997 and 1998 in northwest Italy with the aim of determining the effects of weedy rice competition on rice growth dynamics and yield. ‘Arborio’ (medium-high tall size, high early vigour) and ‘Thaibonnet’ (semi-dwarf size, low early vigour) rice cultivars were grown in competition with weedy rice at four densities (0, 10, 20, and 40 plants m-2). For both cultivars the plant height, the aboveground biomass and the number of tillers were determined at different intervals. With some exceptions, all the measured rice growth parameters were not remarkably affected by weedy rice interference. Weedy rice plants grown in competition with ‘Arborio’ were generally taller and produced more biomass. Weedy rice competition resulted in up to 50% (in ‘Thaibonnet’) and 48% (in ‘Arborio’) yield losses. The yield losses observed in both varieties were primarily related to the reduction of yield components, and of panicle density and number of filled grains per panicle, in particular.

Dimensions

Altmetric

PlumX Metrics

Downloads

Download data is not yet available.

Citations

How to Cite

Vidotto, F., & Ferrero, A. (2009). Interactions Between Weedy Rice and Cultivated Rice in Italy. Italian Journal of Agronomy, 4(4), 127–136. https://doi.org/10.4081/ija.2009.4.127

Similar Articles

1 2 > >> 

You may also start an advanced similarity search for this article.