Lettuce and marigold intercropping: crops productivity and marigold's flavonoid content/Consorcio entre alface e calendula: produtividade das culturas e teor de flavonoides em calendula
Intercropping of vegetables and medicinal plants might produce favorable interactions for both crops, resulting in increased production and profit per unit area. It is known that active compounds can change because of several factors, including the cropping system. Therefore, the goal of this study...
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Published in: | Ciência rural Vol. 46; no. 9; p. 1553 |
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Main Authors: | , , , , , , |
Format: | Journal Article |
Language: | English |
Published: |
Universidade Federal de Santa Maria
01-09-2016
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Subjects: | |
Online Access: | Get full text |
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Summary: | Intercropping of vegetables and medicinal plants might produce favorable interactions for both crops, resulting in increased production and profit per unit area. It is known that active compounds can change because of several factors, including the cropping system. Therefore, the goal of this study was to evaluate the effect of intercropping of lettuce and marigold on the productivity of these crops and on the flavonoid content of marigold flowers. The experiment was conducted in the experimental area of EPAMIG in Oratorios-MG. Treatments consisted of lettuce + marigolds intercropping between rows, lettuce + marigold intercropping between plants, and monocultures of each species. Spacing was 0.3 x 0.3m. The experimental design consisted of randomized blocks with ten repetitions. Harvest of lettuce and marigold flowers started 45 days after transplantation (DAT) and extended up to 72 DAT for marigolds. Lettuce and marigold intercropping appears feasible because lettuce production did not differ between the monoculture and intercropped cultivations, and marigold productivity was higher when intercropped with lettuce. No change in the flavonoid (active chemicals of medicinal interest) content in the floral capitula of marigolds was observed. Key words: Lactuca sativa L., Calendula officinalis L., crop association, land equivalent ratio, medicinal plants. O cultivo consorciado entre hortalicas e plantas medicinais pode promover interacao benefica entre as duas culturas, resultando em aumento na producao e no lucro por unidade de area. Sabe-se tambem que os principios ativos podem ser alterados por varios fatores, incluindo o sistema de cultivo. Dessa forma, o objetivo do presente trabalho foi avaliar o efeito do consorcio entre alface e calendula na produtividade destas culturas e no teor de flavonoides em flores de calendula. O experimento foi conduzido na area experimental da EPAMIG, em OratoriosMG. Os tratamentos consistiram em: alface + calendula entre linhas, alface + calendula entre plantas e os monocultivos de alface e de calendula. O espacamento utilizado foi de 0,3 x 0,3m. O delineamento experimental foi em blocos casualizados com dez repeticoes. A colheita de alface e das flores de calendula iniciou-se 45 dias apos o transplantio (DAT), sendo a colheita de calendula estendida ate os 72 DAT. O consorcio entre alface e calendula e viavel, pois a producao da alface e semelhante entre sistemas consorciados e cultivo solteiro, e a produtividade da calendula e maior quando consorciada com a alface, nao havendo alteracao no teor de flavonoides (principio ativo de interesse medicinal) dos capitulos florais de calendula. Palavras-chave: Calendula officinalis L., Lactuca sativa L., associacao de culturas, indice de equivalencia de area, plantas medicinais. |
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ISSN: | 0103-8478 |
DOI: | 10.1590/0103-8478cr20150712 |