To identify the best DT donors for breeding a large set of lines from abiotic and biotic stress breeding programs in CIMMYT and ITTA were screened for tolerance to reproductive-stage drought stress across 4 countries over 3 years
Temperatures within sub-Saharan Africa are projected to increase by 2050. To make sure these DT donors will continue to perform under drought in future environments experiments screening for DT under higher temperatures were also conducted. Many lines tolerant to drought lost their tolerance under higher temperatures and these lines were excluded from the list.
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Grain yield (t ha-1)a |
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DTMA |
Pedigree |
HG |
Colour |
Texture |
Drought |
Drought + heat |
Well-watered |
251 |
La Posta Sequia C7-F18-3-2-1-1b |
B |
White |
Flint |
3.16 |
1.13 |
7.04 |
217 |
DTPWC9-F24-4-3-1b |
AB |
White |
Flint |
3.10 |
1.43 |
6.97 |
- |
DTPYC9-F46-1-2-1-1-1b |
AB |
Yellow |
Flint |
3.07 |
1.23 |
6.73 |
- |
DTPYC9-F46-1-2-1-1-2b |
AB |
Yellow |
Flint |
3.07 |
1.58 |
7.12 |
103 |
POB.502 c3 F2-10-3-2-1b |
B |
White |
Flint |
3.07 |
1.17 |
7.54 |
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La Posta Sequia C7-F64-2-6-2-2b |
B |
White |
Flint |
3.06 |
1.39 |
7.72 |
261 |
La Posta Sequia C7-F180-3-1-1-1b |
B |
White |
Flint |
3.03 |
1.13 |
7.94 |
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Check (CML442/CML444) |
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2.36 |
0.96 |
7.70 |
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Number of locations |
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7 |
3 |
7 |
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H |
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0.64 |
0.50 |
0.84 |
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Trial mean |
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2.58 |
1.13 |
6.88 |
aadjusted means (best linear unbiased predictions)
bperformance when testcrossed with CML539
For further information, including seed requests, please contact Jill Cairns ( This e-mail address is being protected from spambots. You need JavaScript enabled to view it ) or Benhilda Masuka ( This e-mail address is being protected from spambots. You need JavaScript enabled to view it )