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ACCESSIONPLANT NAMETAXONOMYORIGINGENEBANKIMAGEAVAILABILITYRECEIVEDSOURCE TYPESOURCE DATECOLLECTION SITECOORDINATESELEVATIONHABITATIMPROVEMENT LEVELNARRATIVE
0PI 641068TZEI 8Zea mays L. subsp. mays NigeriaNC7KERNELS2005DEVELOPEDBreeding materialTZEI 8 is tropically adapted early maturing, yellow endosperm maize (Zea mays L.) inbred line with moderate levels of resistance to the parasitic weed, Striga hermonthica (Del.) Benth. The inbred line has good levels of resistance to the maize streak virus (MSV), Puccinia polysora Underw, and Bipolaris maydis (Nisikado and Miyake) Shoemaker. TZEI 8 sheds pollen at 53 days, silks at 56 days and has anthesis-silking interval of 3 days; plant height of 96 cm and ear height of 46 cm. It has a Striga emergence count of 38 plants per plot (0.75 cm x 5 m) and Striga damage syndrome rating of 4.8 on a scale of 1-9 where 1=little or no damage and 9= severe damage due to S. hermonthica. It produced a grain yield of 613 kg/ha under Striga-free conditions and 563 kg/ha under artificial infestation with 5,000 germinable seed of S. hermonthica. TZEI 8 is susceptible to drought and has flint grain type.1685361PI 641068
1PI 641072TZEI 12Zea mays L. subsp. mays NigeriaNC7EARNot Available2005DEVELOPEDBreeding materialTZEI 12 is tropically adapted early maturing, yellow endosperm maize (Zea mays L.) inbred line with moderate levels of resistance to the parasitic weed, Striga hermonthica (Del.) Benth. The inbred line has good levels of resistance to the maize streak virus (MSV), Puccinia polysora Underw, and Bipolaris maydis (Nisikado and Miyake) Shoemaker. TZEI 12 sheds pollen at 55 days, silks at 57 days and has anthesis-silking interval of 2 days; plant height of 101 cm and ear height of 58 cm. It has a Striga emergence count of 19 plants per plot (0.75 cm x 5 m) and Striga damage syndrome rating of 4.5 on a scale of 1-9 where 1=little or no damage and 9= severe damage due to S. hermonthica. It produced a grain yield of 859 kg/ha under Striga-free conditions and 451 kg/ha under artificial infestation with 5,000 germinable seed of S. hermonthica. TZEI 12 is susceptible to drought and has flint grain type.1685365PI 641072
2PI 641076TZEI 16Zea mays L. subsp. mays NigeriaNC7KERNELS2005DEVELOPEDBreeding materialTZEI 16 is tropically adapted early maturing; yellow endosperm maize (Zea mays L.) inbred line with moderate levels of resistance to the parasitic weed, Striga hermonthica (Del.) Benth. The inbred line has good levels of resistance to the maize streak virus (MSV), Puccinia polysora Underw, and Bipolaris maydis (Nisikado and Miyake) Shoemaker. TZEI 16 sheds pollen at 55days, silks at 57 days and has anthesis-silking interval of 2 days; plant height of 106 cm and ear height of 49 cm. It has a Striga emergence count of 16 plants per plot (0.75 cm x 5 m) and Striga damage syndrome rating of 5 on a scale of 1-9 where 1=little or no damage and 9= severe damage due to S. hermonthica. It produced a grain yield of 966 kg/ha under Striga-free conditions and 766 kg/ha under artificial infestation with 5,000 germinable seed of S. hermonthica. TZEI 16 is susceptible to drought and has flint grain type.1685369PI 641076