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| Format: | Artículo científico |
| Language: | en |
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Universidade Federal de Goiás
2023
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| Online Access: | https://www.redalyc.org/articulo.oa?id=253074416038 |
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Table of Contents:
- Effect of shading and growing season on the agronomic performance of jambu Andressa de Oliveira Silva Deiviane de Souza Barral Isabelle Caroline Bailosa do Rosário Lucas da Silva Santos Rafaelle Fazzi Gomes Agrociencias Jansen Amazon Acmella oleracea L unconventional food plant The jambu (Acmella oleracea) production can be influenced by the growing season and light available for metabolic processes. This study aimed to assess the agronomic and physiological performance of two jambu varieties, under different shading levels, during the winter and summer of the Brazilian Amazon. Two random block experiments were conducted, in a 2 x 4 factorial scheme, consisting of two jambu varieties (yellow and purple flower) and four shading levels (0, 30, 50 and 70 %), with four replications. Physiological, growth and yield traits were assessed. There was no significant interaction between treatments and growing seasons (Amazon winter and summer) for growth or yield traits, nor between treatments for the physiological characteristics. The cultivation without shading screen can increase the shoot dry weight of both varieties; the yellow flower variety exhibited early-onset flowering regardless of the shading screen used; the “Amazon summer” growing season increased the jambu yield by 33 %, while the 70 % shading reduced the net photosynthetic rate, consequently not favoring the vegetative development of the jambu plants. As such, it is recommended that the yellow and purple flower jambu varieties be grown without shading screen in the Amazon summer. 2023 artículo científico 1517-6398 https://www.redalyc.org/articulo.oa?id=253074416038 10.1590/1983-40632023v5377257 en http://www.redalyc.org/revista.oa?id=2530 Pesquisa Agropecuária Tropical application/pdf Universidade Federal de Goiás Pesquisa Agropecuária Tropical (Brasil) Vol.53