000 02523nam a22004097a 4500
001 G65029
003 MX-TxCIM
005 20230522222546.0
008 121211s ||||f| 0 p|p||0|| |
020 _a92-9146-025-7
040 _aMX-TxCIM
072 0 _aH20
082 0 4 _a633.15
_bEAS No. 5
100 1 _aNgowi, P.S.
_uMaize Productivity Gains through Research and Technology Dissemination. Proceedings of the Eastern and Southern Africa Regional Maize Conference, 5; Arusha (Tanzania); 3-7 Jun 1996
110 2 _aCentro Internacional de Mejoramiento de Maiz y Trigo (CIMMYT), Mexico DF (Mexico)
245 0 0 _aPerformance of streak resistant versions of six commercial maize varieties in Tanzania
260 _aAddis Ababa (Ethiopia)
_bCIMMYT :
_c1997
340 _aPrinted
520 _aUkiriguru Composite A (UCA), Kilima, Staha, Ilonga Composite White (ICW), Kito, and Katumani are commercial maize varieties grown in Tanzania. These varieties were susceptible to maize streak virus disease (MSVD) which reduced their adoption in areas where the disease is endemic. Between 1986 and 1990, the National Maize Research Programme (NMRP), the International Maize and Wheat Improvement Centre (CIMMYT) and the International Institute for Tropical Agriculture (IITA) collaboratively converted the varieties for streak tolerance/resistance. The resultant streak tolerant/resistant versions (SR) i.e. UCA-SR, Kilima-SR, Katumani-SR, Staha-SR, ICW-SR and Kito-SR were evaluated for yield and other traits in field experiments conducted in 1991, 1992 and 1993. Results indicated a 2 to 43% yield advantage of the streak tolerant versions over the current commercial varieties. The new versions were similar to the commercial varieties in other important characteristics. The streak tolerant versions will increase stability of maize production in areas prone to MSVD.
546 _aEnglish
591 _a9801|AGRIS 9702
593 _aJose Juan Caballero
595 _aCPC
650 1 0 _aDisease control
650 1 7 _aPlant diseases
_gAGROVOC
_2
_91206
650 1 0 _aTanzania
650 1 7 _aVarieties
_gAGROVOC
_2
_91303
653 0 _aCIMMYT
650 1 0 _91314
_aZea mays
_gAGROVOC
650 1 0 _aMaize streak virus
_gAGROVOC
_91947
700 1 _aAkonaay, H.B.,
_ecoaut.
700 1 _aKaswende, J.S.,
_ecoaut.
700 1 _aMduruma, Z.O.,
_ecoaut.
700 1 _aMoshi, A.J.,
_ecoaut.
700 1 _aRansom, J.K.|Palmer, A.F.E.|Zambezi, B.T.|Mduruma, Z.O.|Waddington, S.R.|Pixley, K.V.|Jewell, D.C.
_eeds.
942 _cPRO
999 _c9536
_d9536