SCREENING OF PHYTOTOXIC EFFECT OF PESTICIDE BI-58 WITH USE OF <i>ALLIUM CEPA</i> L. AND <i>ZEA MAYS</i> L.

We carried out the comparative analysis of phytotoxic effect of BI-58 pesticide on morphometric indicators of roots of seeds of Zea mays L. and Allium cepa L. Results of the conducted research showed that BI-58 in the range of the studied concentrations (0,05 - 0,4 ml/l) had the negative impact on sprouts of Allium cepa and Zea mays' seeds which is shown in inhibition of a root gain and viability of seeds. This influence had the expressed dose-dependent character: increase of concentration of the tested preparation caused decrease in the studied indicators in both test cultures. The dose of 0,05 ml/l of phytotoxic action didn't render on sprouts of Allium cepa and Zea mays. It should be noted the concentration of BI-58 recommended for application (0,1 ml/l) had the expressed phytotoxic effect on test plants. It was established sprouts of Zea mays were more sensitive to toxic effect of pesticide, than Allium cepa. On the basis of these data this dose at cultivation of the tested cultures was recommended not to use. The further increase in concentration of BI-58 (0,2 and 0,4 ml/l) caused the interfaced increase of phytotoxic effect on Самарский научный вестник. 2015. № 2(11) 136 Д.Э. Эмирова СКРИНИНГ ФИТОТОКСИЧЕСКОГО ДЕЙСТВИЯ ПЕСТИЦИДА БИ-58 ... the tested cultures. Length of roots of Allium sera decreased by 1,5 times at concentration of 0,2 ml/l and by 40,66% - at decrease in quantity of the sprouted seeds. The increase in concentration of a preparation (0,4 ml/l) caused decrease in length of roots of sprouts of the studied test culture and oppression of their viability. In particular, length of roots of Allium sera in this option of research decreased by 1,8 times in comparison with control, a viability indicator - by 46,16%. Pesticide had similar impact on Zea mays. In particular, at a dose of BI-58 of 0,2 ml/l length of backs of Zea mays decreased by 45,1%, a viability indicator - for 25,3% in comparison with control. The increase in concentration of the studied preparation twice (0,4 ml/l) caused decrease of the morforometric roots indicators for 52,1%, decrease in viability - for 28,8% in comparison with control option.

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Pre-Storage Fungicidal Treatment Effects on Prevalence of Seed-Borne Fungi and Quality of Onion (Allium cepa L.) Seed

The Agriculturists ◽

10.3329/agric.v15i2.35464 ◽

2018 ◽

Vol 15 (2) ◽

pp. 52-58

Author(s):

A A Khan ◽

K U Sarker ◽

M F Hossain ◽

M M Haque ◽

I H Mian

Keyword(s):

Allium Cepa ◽

Negative Impact ◽

Positive Impact ◽

Control Seed ◽

Vigor Index ◽

Allium Cepa L ◽

Onion Seed ◽

Fungicidal Treatment ◽

Significant Negative Impact

Effect of pre-storage fungicidal treatment on prevalence of seed-borne fungi and quality of onion (Allium cepa L.) seeds was evaluated under laboratory condition. Seeds were treated separately with five fungicides namely Bavistin 50 WP (Carbendazim) and Dithane M-45 (Mancozeb) @ 2.2 g/kg, Homai (Thiophanate) and Rovral (Iprodione) @ 2.0 g/kg and Provax-200 (Carboxin) @ 3.0 g/kg of seeds before storage. Prevalence of seed-borne fungi, percent seeds germination and vigor index were evaluated just before storage, 75 and 150 days after storage. Fungicides produced significant negative impact on seed-borne fungi and positive impact in maintaining quality during storage. Provax-200, Rovral, Dithane M-45 and Bavistin effectively reduced seed-borne fungi and performed better for germination and vigor of seeds. Seed treatment with Provax-200, Rovral, Bavistin or Dithane M-45 would therefore be suggested as effective fungicides to control seed-borne fungal infection and maintain better germination and vigor of onion seed in storage.The Agriculturists 2017; 15(2) 52-58

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Prácticas agrícolas sostenibles que incrementan los rendimientos de diferentes cultivos en Sancti Spíritus, Cuba

Agronomía Costarricense ◽

10.15517/rac.v40i2.27391 ◽

2016 ◽

Vol 40 (2) ◽

Cited By ~ 1

Author(s):

Kolima Peña ◽

Juan Carlos Rodríguez ◽

Dilier Olivera ◽

Pedro Fidel Fuentes ◽

Jorge Félix Melendez

Keyword(s):

Zea Mays ◽

Phaseolus Vulgaris ◽

Solanum Lycopersicum ◽

Allium Cepa ◽

Zea Mays L ◽

Phaseolus Vulgaris L ◽

Solanum Lycopersicum L ◽

Allium Cepa L

Esta investigación tuvo como escenario 4 agroecosistemas de la Provincia de Sancti Spíritus, Cuba. Se estudió la respuesta productiva de diferentes cultivos de hortalizas y granos a la cobertura muerta dispuesta sobre el suelo y al empleo de biofertilizantes en condiciones experimentales de campo y en diferentes tipos de suelo. Dentro de las hortalizas se evaluó la cebolla (Allium cepa L.) y el tomate (Solanum lycopersicum L.); para ambas se utilizó diferentes tipos de cobertura muerta sobre el suelo. Con los granos, se empleó Fitomas-E y Biobras 16 en el cultivo del frijol () y microrganismos eficientes en maíz (Zea mays L.). El diseño experimental para los 4 experimentos fue de bloques al azar. En todos el rendimiento de los cultivos fue superior en las variantes tratadas en relación con el control. Cuando se usó cobertura muerta en cebolla y tomate, el mayor rendimiento se obtuvo con el tratamiento con restos de cosecha de arroz: 14,08 y 31,25 t.ha-1, respectivamente. En el cultivo del frijol (Phaseolus vulgaris L.) la mejor combinación fue la aplicación conjunta de Fitomas E y Biobras 16, con un rendimiento de 2,23 t.ha-1. La producción de maíz fue superior en más del 50% cuando se usó microorganismos eficientes en correspondencia con la variante control. Las prácticas agrícolas evaluadas contribuyeron a mejorar la respuesta productiva en todos los cultivos donde fueron aplicadas.

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Impact of Endomycorrhizae and Acidithiobacillus ferrooxidans with Sulfur and Phosphorus Nutrition on Onion (Allium cepa L.) and Maize (Zea mays L.) Plants under Field Conditions

British Microbiology Research Journal ◽

10.9734/bmrj/2015/15966 ◽

2015 ◽

Vol 9 (2) ◽

pp. 1-15

Author(s):

Wedad Eweda ◽

Enas Hassan ◽

A. Heggo ◽

Amal Mohamed

Keyword(s):

Zea Mays ◽

Allium Cepa ◽

Acidithiobacillus Ferrooxidans ◽

Zea Mays L ◽

Field Conditions ◽

Phosphorus Nutrition ◽

Allium Cepa L

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Ability of Allium cepa L. root tips and Tradescantia pallida var. purpurea in N-nitrosodiethylamine genotoxicity and mutagenicity evaluation

Anais da Academia Brasileira de Ciências ◽

10.1590/s0001-37652010000400015 ◽

2010 ◽

Vol 82 (4) ◽

pp. 925-932 ◽

Cited By ~ 13

Author(s):

Claudia R. de Rainho ◽

Andréa Kaezer ◽

Claudia A.F. Aiub ◽

Israel Felzenszwalb

Keyword(s):

Allium Cepa ◽

Positive Control ◽

Negative Control ◽

Nitroso Compounds ◽

Repair System ◽

Root Tips ◽

Allium Cepa L ◽

Tradescantia Pallida ◽

Mutation Assay ◽

Dose Dependent

N-nitroso compounds, such as N-nitrosodiethylamine (NDEA), can be formed by the reaction of secundary amines with nitrosating agents, and are suspected to be involved in tumors in humans. NDEA has been considered a weak carcinogen in genotoxic assays probably due to the inefficient nitrosamine activation system that is used and/or to the efficient repair system. In this work, we evaluated the sensibility of Allium cepa L. root tips and Tradescantia stamen hair mutation assay (Trad-SH) using Tradescantia pallida var. purpurea for NDEA (0.1; 0.5; 5 and 25mM) genotoxicity and mutagenicity induction. Allium cepa L. was treated with different NDEA concentrations for 3h, for 3 consecutive days, including negative control (distilled water) and positive control maleic hydrazide (MH 30mg/mL). After treatment, the roots were hydrolyzed, squashed, and the mitotic index (MI) and cytological abnormalities were scored. The results revealed a cytostatic effect of NDEA (0.5 and 5mM), showing a significant reduction in the MI. Chromosome stickiness suggests a NDEA toxic effect. T. pallida purpurea did not respond to mutagens with a dose-dependent pattern. In conclusion, our study indicates that the root tips of Allium cepa L. have sensibility to detect NDEA genotoxicity, but not for Trad-SH test.

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