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022 _a1391-3646
024 8 _ahttp://doi.org/10.4038/tare.v25i3.5597
040 _aMX-TxCIM
041 _aeng
100 1 _aNgaboyisonga, C.
_928514
245 1 0 _aGenotype by Environment Interaction (GEI) of maize varieties resistant to maize lethal necrosis for Mid Altutides of Rwanda
260 _aSri Lanka :
_bUniversity of Ruhuna ,
_c2022.
500 _aPeer review
500 _aOpen Access
520 _aMaize is a leading crop in Rwandan agriculture, but its production is threatened by the outbreaks of Maize Lethal Necrosis (MLN) virus disease. The establishment of MLN artificial inoculation facility in the region where Rwanda is located has facilitated the developing MLN resistant maize genotypes. The objective of this study was to identify maize MLN resistant varieties that are high yielding and stable across environments, and to integrate them with other disease management strategies in Rwanda. Forty-one maize varieties were screened through MLN artificial inoculation facility in Naivasha, Kenya. Then, 24 of them were evaluated under natural inoculation in Karama research station, Rwanda. Twelve potential maize varieties were investigated for genotype by environment interaction in four sites at mid-altitudes in Rwanda, including Cyabayaga Karama and Bugarama, over two consecutive seasons. The study identified three maize MLN moderately resistant varieties; RHM1402, RHM1407, and RHM1409 that are high yielding and stable across environments. MLN was found to increase the incidence of ear rot, hence, raising the risks of infection with harmful mycotoxins such as aflatoxins. In order to manage the MLN disease in Rwanda, it has been advocated that the identified varieties be made available to farmers and integrated with other methods of control.
546 _aText in English
650 0 _aMaize chlorotic mottle virus
_2AGROVOC
_99361
650 7 _aResistance varieties
_2AGROVOC
_93155
650 7 _aInoculation
_2AGROVOC
_95194
650 7 _aDisease management
_2AGROVOC
_911012
651 0 _94426
_aRwanda
700 1 _aMahabaleswara, S.L.
_gGlobal Maize Program
_8I1706749
_92827
700 1 _aNizeyimana, F.
_928799
700 1 _aGafishi, M.K.
_928800
700 1 _aMbarushimana, J.D.
_928801
773 0 _tTropical Agricultural Research and Extension
_dSri Lanka : University of Ruhuna, 2022.
_x1391-3646
_gv. 25, no. 3, p. 254–274
856 _yOpen Access through DSpace
_uhttps://hdl.handle.net/10883/22179
942 _cJA
_n0
_2ddc
999 _c65585
_d65577