Influence of Weeds on Yacon Initial Growth and Development

IF 0.8 Q3 Agricultural and Biological Sciences

Planta Daninha Pub Date : 2020-01-01 DOI:10.1590/s0100-83582020380100020

M. O. Cabral, F. Oliveira, L. Dalvi, A. G. Teixeira, L. Rocha, J. Pedrosa

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引用次数: 1

Abstract

ABSTRACT: The consumption of yacon has been increasing around the world due to the nutritional and pharmaceutical properties of this plant. The growing commercial interest in yacon (Smallanthus sonchifolius) generates a demand for crop management research studies, including the effect of weed competition on yacon, which was not yet studied. Thus, this study was performed with the objective of evaluating the effects of weed competition on yacon development and growth. The experimental design was completely randomized with four treatments and seven replicates. Treatments were yacon with the interference of four weed species: Cyperus rotundus L. (nutgrass), Commelina benghalensis L. (tropical spiderwort), Amaranthus viridis L. (slender amaranth) and Bidens pilosa L. (hairy beggarticks). The experiment was conducted in a greenhouse, using 10 dm3 pots. Plant height, number of leaves, number of stems, leaf area, fresh and dry mass weight (total and partial), and chlorophyll A, B and total were evaluated. The weed competition resulted in a decrease in the yacon development (height, number of leaves, number of stems, leaf area), photosynthetic rate (decreased chlorophyll content A, B and total) and yield, as also decreased the accumulation of fresh and dry biomass of tuberous roots. C. benghalensis L. and A. viridis L. were the weeds most affecting the development and growth of yacon.

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杂草对雪莲初期生长发育的影响

摘要:由于雪莲果的营养价值和药用价值，雪莲果在世界范围内的消费量不断增加。对雪莲的商业兴趣日益增长，产生了对作物管理研究的需求，包括杂草竞争对雪莲的影响，这一点尚未研究。因此，本研究旨在评价杂草竞争对雪莲生长发育的影响。试验设计完全随机化，4个处理，7个重复。以榛子草(Cyperus rotundus L.)、热带蜘蛛草(Commelina benghalensis L.)、细长苋菜(Amaranthus viridis L.)和毛菜花(Bidens pilosa L.) 4种杂草为处理方法。试验在温室中进行，使用10 dm3的花盆。测定株高、叶数、茎数、叶面积、鲜质量和干质量(总质量和部分质量)以及叶绿素A、B和总质量。杂草竞争导致雪莲的生长发育(株高、叶数、茎数、叶面积)、光合速率(叶绿素含量a、B和总含量降低)和产量下降，块根鲜、干生物量积累减少。对雪莲生长发育影响最大的杂草是绿草草和绿草草。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Planta Daninha Agricultural and Biological Sciences-Plant Science

自引率

0.00%

发文量

审稿时长

16 weeks

期刊介绍： Planta Daninha is a scientific journal published by the Brazilian Society of Weed Science (SBCPD - Sociedade Brasileira da Ciência das Plantas Daninhas). Papers submitted for publication must be sent through an electronic system, on http://www.scielo.br/pd. Works may be written in Portuguese, English, or Spanish, and will be accepted after being reviewed and approved by the Editorial Board. Only papers that have not been published or submitted for publication in other media will be accepted. Articles in Portuguese will be translated to English after being properly corrected and authorized by the authors. Planta Daninha has with goal to publish genuine technical-scientific papers and literature reviews from a critical perspective on Biology, weed management, and related topics.