Maize is the second most consumed cereal in Haiti after rice. Even so national maize yield is low (0.84 t/ha) with high aflatoxin (AF) risk exposure. The main objective of the present study is to evaluate the yield parameters of seven maize varieties tested in a participative approach at Torbeck plain and quantify the aflatoxin content. Two maize varieties are from University of Milan (UNIMI), two from Agriculture College of University Notre Dame of Haiti (UNDH), and the other three, from local farmers of Torbeck. Results revealed that maximal (4.36 t/ha) and minimal (3.14 t/ha) maize grain yield were noted for Tilevy, provided by local farmers and for R4865, from UNIMI (p<0.05), respectively. The maximal correlation was found between maize grain yield and mass of 100 grains (ρ= 0.485) followed by the correlation with the number of grains per row (ρ= 0.477). AF contamination of tested materials varied from Comayagua (Max: 7.6; average: 5.6±1.8 ppb) to Maquina (Max: 151; average: 79.65±72.56 ppb). The material R4865, provided by UNIMI showed AF concentration < 20 ppb fixed by US Food and Drugs Administration limits. Therefore, R4865 from UNIMI could be used as the donor of pollen to Tilevy in programs with aim to produce large maize grain quality in Haiti.

Evaluation des paramètres productifs et quantification d’aflatoxine de sept variétés de maïs (Zea mays L.) testées en Haïti / P. De Marinis, A. Spada, J. Aristil. - In: INTERNATIONAL JOURNAL OF BIOLOGICAL AND CHEMICAL SCIENCES. - ISSN 1991-8631. - 13:7(2019), pp. 3009-3022.

Evaluation des paramètres productifs et quantification d’aflatoxine de sept variétés de maïs (Zea mays L.) testées en Haïti

P. De Marinis;A. Spada;J. Aristil
2019

Abstract

Maize is the second most consumed cereal in Haiti after rice. Even so national maize yield is low (0.84 t/ha) with high aflatoxin (AF) risk exposure. The main objective of the present study is to evaluate the yield parameters of seven maize varieties tested in a participative approach at Torbeck plain and quantify the aflatoxin content. Two maize varieties are from University of Milan (UNIMI), two from Agriculture College of University Notre Dame of Haiti (UNDH), and the other three, from local farmers of Torbeck. Results revealed that maximal (4.36 t/ha) and minimal (3.14 t/ha) maize grain yield were noted for Tilevy, provided by local farmers and for R4865, from UNIMI (p<0.05), respectively. The maximal correlation was found between maize grain yield and mass of 100 grains (ρ= 0.485) followed by the correlation with the number of grains per row (ρ= 0.477). AF contamination of tested materials varied from Comayagua (Max: 7.6; average: 5.6±1.8 ppb) to Maquina (Max: 151; average: 79.65±72.56 ppb). The material R4865, provided by UNIMI showed AF concentration < 20 ppb fixed by US Food and Drugs Administration limits. Therefore, R4865 from UNIMI could be used as the donor of pollen to Tilevy in programs with aim to produce large maize grain quality in Haiti.
Le maïs est la deuxième céréale la plus consommée en Haïti après le riz. Mais, le rendement (Rdt)national reste faible avec de risque élevé de contamination d’aflatoxines (AF). L’objectif de cette étude est d’évaluer les paramètres productifs de 7 variétés de maïs testées dans une approche participative à Torbeck et quantifier les AF. Deux des variétés proviennent de l’Université des Etudes de Milan (UNIMI), 2 de la Faculté d’Agronomie de l’Université Notre Dame d’Haïti et les 3 autres auprès des planteurs de Torbeck. Les résultats ont révélé que les Rdt maximal (4,36 t/ha) et minimal (3,14 t/ha) ont été détectés sur Tilevy, fournie par les producteurs et R4865, provenant d’UNIMI (p<0,05). La corrélation maximale du Rdt a été notée avec la masse des 100 grains (ρ=0,485) suivie du nombre grains par rang (ρ=0,477). Les concentrations d’AF varient de Comayagua (Max : 7,6 ; moyenne : 5,6±1,8 ppb) à Maquina (Max : 151 ; moyenne : 79,65±72,56 ppb). R4865 provenant d’UNIMI a révélé des taux d’AF < 20 ppb, fixé par la législation américaine. Ainsi, la variété R4865 d’UNIMI peut être donneuse de pollen à Tilevy dans des programmes ayant pour but de produire de grandes quantités de grains de qualité en Haïti.
Varieties; maize; yield; aflatoxin; Haiti
Settore AGR/02 - Agronomia e Coltivazioni Erbacee
INTERNATIONAL JOURNAL OF BIOLOGICAL AND CHEMICAL SCIENCES
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/2434/703360
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