eprintid: 11771
rev_number: 8
eprint_status: archive
userid: 3170
dir: disk0/00/01/17/71
datestamp: 2021-03-30 06:23:56
lastmod: 2021-03-30 06:23:56
status_changed: 2021-03-30 06:23:56
type: article
metadata_visibility: show
creators_name: Hendrix, M C
creators_name: Obed, I L
creators_name: Alice, M M
creators_name: Elijah, P
creators_name: Jones, Y
creators_name: Samuel, C N
creators_name: Rick, B
creators_gender: Female
icrisatcreators_name: Samuel, C N
affiliation: Department of Soil Science, University of Zambia, Lusaka
affiliation: ICRISAT (Lilongwe)
affiliation: Department of Entomology and Plant Pathology, North Carolina State University, Raleigh
country: Zambia
country: Malawi
country: USA
title: The effects of gypsum on pod-yield and pre-harvest aflatoxin contamination in selected peanut cultivars of Zambia
ispublished: pub
subjects: s1.3
subjects: s35
subjects: s40051
divisions: CRPS5
full_text_status: public
keywords: Aflatoxin, Gypsum, Peanut cultivar, Pod-yield, Zambia
note: This study was funded by the Peanut and Mycotoxin Innovation Laboratory under the Southern African Value Chain Project through the U.S. Agency for International Development, under the terms of Award No. AID-ECG-A-00-07-0001 to The University of Georgia as management entity for the U.S. Feed the Future Innovation Lab on Peanut Productivity and Mycotoxin Control.
abstract: Good agricultural practices are an effective means of minimizing pre-harvest aflatoxin contamination in peanuts. A field experiment was conducted to evaluate the effect of gypsum on pod yield and aflatoxin contamination in three peanut cultivars (Kadononga, MGV 4 and MGV 5) in Zambia. The experiment was conducted in Chongwe and Lusaka districts. Gypsum (15.6 % calcium) was applied at rates of 0 and 400 kg/ha at flowering stage. Although gypsum had no significant effect on aflatoxin contamination, there were significant differences (p = 0.009) in cultivar susceptibility to aflatoxin contamination. The cultivar with the smallest kernels had 18.8% lower aflatoxin content than the large-kernelled cultivar. Additionally, gypsum did not have a clear effect on pod yield. For instance, gypsum was associated with 44.8% more grain-filled pods in Kadononga (p = 0.005) at the site in Lusaka, but this result did not apply to the other two cultivars. At the site in Chongwe, gypsum was associated with 34.6% higher pod yield of MGV 5 only (p = 0.006). These results further suggest that plant factors such as kernel size may have an influence on natural resistance to aflatoxin contamination in peanuts.
date: 2020
date_type: published
publication: African Journal of Plant Science
volume: 14
number: 3
publisher: Academic Journals
pagerange: 134-138
id_number: doi:10.5897/AJPS2019.1807
refereed: TRUE
issn: 1996-0824
official_url: https://doi.org/10.5897/AJPS2019.1807
citation:   Hendrix, M C and Obed, I L and Alice, M M and Elijah, P and Jones, Y and Samuel, C N and Rick, B  (2020) The effects of gypsum on pod-yield and pre-harvest aflatoxin contamination in selected peanut cultivars of Zambia.  African Journal of Plant Science, 14 (3).  pp. 134-138.  ISSN 1996-0824     
document_url: http://oar.icrisat.org/11771/1/The-effects-of-gypsum-on-pod-yield-and-pre-harvest-aflatoxin-contamination-in-selected-peanut-cultivars-of-Zambia.pdf