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| ACCESSION | PLANT NAME | TAXONOMY | ORIGIN | GENEBANK | IMAGE | AVAILABILITY | RECEIVED | SOURCE TYPE | SOURCE DATE | COLLECTION SITE | COORDINATES | ELEVATION | HABITAT | IMPROVEMENT LEVEL | NARRATIVE | | |
|---|
| 0 | PI 641068 | TZEI 8 | Zea mays L. subsp. mays | Nigeria | NC7 |  | | 2005 | DEVELOPED | | | | | | Breeding material | TZEI 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. | 1685361 | PI 641068 |
| 1 | PI 641072 | TZEI 12 | Zea mays L. subsp. mays | Nigeria | NC7 |  | | 2005 | DEVELOPED | | | | | | Breeding material | TZEI 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. | 1685365 | PI 641072 |
| 2 | PI 641076 | TZEI 16 | Zea mays L. subsp. mays | Nigeria | NC7 |  | | 2005 | DEVELOPED | | | | | | Breeding material | TZEI 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. | 1685369 | PI 641076 |