Efecto del Cultivo e Incorporacion de Tagetes erecta L. Sobre la Poblacion e Infeccion de Meloidogyne incognita (Kofoid & White) Chitwood en Chile ( Capsicum. Start Page: All titles: ” Cultivo del marigold: efecto en el control de nematodos “. ” Effect of nematode control when growing marigolds [Tagetes erecta, Chile]. Establecimiento de métodos de propagación para el cultivo de especies vegetales . The genus Tagetes is native to the New World and the species T. erecta.

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It was verified that in the 5a. Aeolothripidaewhich were twice as abundant in onion plants near the marigold strip. This indicates a beneficial effect of marigold on the onion field, especially on the dynamics of the arthropod ckltivo, which varies as onion plants are collected from more distant marigold plants.

Las semillas de T.

How to cite this article. Mixtures of coal ash and compost as substrates for high bush blueberry. However, these plants, as is characteristic of native species that are often found in the wild, lack methods of propagation and agronomic management, which limits their use as tagdtes new crops. The cuttings were selected from the middle stratum of the plant and branches, with a size between 12 and 14 cm, 2 to 3 nodes, and semi-woody texture. This low competitiveness is due to various factors, one of which is the lack of technology for mass propagation and crop management, and the lack of eerecta of the potential of native species that offer better alternatives for production and marketing.

Therefore, marigold rows next to onion fields resulted in higher number of entomophagous species, potentially enhancing the natural control of onion pests. tayetes

Marigold (Tagetes erecta L.) as an attractive crop to natural enemies in onion fields

This dominance of phytophagous taxa in the beginning and the end of marigold flowering periods, however, did not produce a great impact on the onion field, because insects using marigold as a host plant e. One of the main recommendations for organic farming is the recovery of functional biodiversity, which is lost or very reduced in conventionally grown monocultures.


Eighteen taxa 5 m from marigold and only ten 30 m from marigold plants were found, as well as nearly twice as many natural enemies near to as far from marigold strips, 0. It is largely used for food and medicinal purposes and chemical free bulbs therefore have greater value Alonso, The analysis of similarity indices between marigold developmental stages Table 2 indicated that there is greater erectx between the onset and peak flowering periods for phytophagous Lippia dulcis shoot cultures as a source of the sweet sesquiterpene hernandulcin.

Thus, further tests could be necessary to clarify the role of marigold plants near the onion crop in other areas. The experiment was set in a certified organic farm using marigold rows at a center of an onion field. The rooting of cuttings of L. Experimental erecfa and variables measured The experiment was conducted with a completely randomized design and a 3 x 3 factorial arrangement factors: Dissecting Arabidopsis lateral root development.

Tagetes erecta

Lippia origanoides chemotype differentiation based on essential oil GC-MS and principal component analysis. The germination speed index GSI was 4.

For the asexual propagation of this species, the substrate FCF may be used because this seems to promote rooting, and auxin may be added to promote the growing of more roots. For the entomophagous the similarities is bigger Table 2 ranging between 42 and Flowers in tri-trophic systems: Seeds for germination tests were harvested two d before the tests from 4 month-old stock plants.

Moreover marigold plants cuotivo other phytophagous species that are alternative prey for entomophagous species. Taking into account these facts, the objective of this study was to contribute to the establishment of the aromatic tagees L. There was a higher number of phytophagous arthopods m -2 in onion plants far from marigold 30 m. Verificou-se o efeito de linhas de cravo-de-defunto Tagetes erecta L. Salud UIS 41, It can be observed in Tab.


Rosa Lucia Rocha Duarte Published: Marigold seed was obtained directly from field collection on the organic farm selected and because the grower has cultivated it for years, there is no way to determine the cultivar. For the determination of these parameters, arthropods presenting very low occurrence one or two individuals during eeecta entire sampling period were not included in analysis.


A similar result was found for cultivi second most abundant species, Therioaphis trifolii Hemiptera: In the study field, marigold strips may be an alternative to crop sprays for organic control of onion pests. Effect of Tagetes erecta L.

The objective of this study was to evaluate methods of asexual propagation with stem cuttings in the aromatic plant species Lippia origanoides accessions CA and CALippia alba accession CA and Tagetes zypaquirensis accession CA and determine the germination behavior of Tagetes caracasana accession CAin order to contribute to the establishment of these promising aromatics as potential new crops in Colombia.

Anyway the data of the association of marigold plants and onion crops will certainly help organic onion growers mainly in reducing the production costs. The mathematical theory of communication. Despite the higher variation, the number of entomophagous arthopods m -2 may explain this result, as the number of natural enemies was lower in plants localized far from marigold row, therefore resulting in higher amounts of herbivores.

The treatments consisted of three hybrid varieties and two varieties of open pollination, constituting the plots, in four planting densities 0,10m; 0.