The Eleventh Regional Wheat Workshop For Eastern ... - Cimmyt

Response ofbread wheat genotypes to drought simulation - Kimurto et al.
Table 2.
Mean separation for yield and yield components measured at different
watering levels during each of the two seasons (1998 and 1999) and
combined over the two seasons under rain shelter at Njoro, Kenya.
Wat PHT DH DPM TLR · ·RTR EA . SPK Seeds/ SF 1000- Grain
(mm) (cm) bead KWT yield
1998
(kg/ha)
118 49.8a 60.9a 100.5a 2.5a 96.3a 7.5a Il.3a 30.la 4.3c 38.9a 1525.9a
106 42.0a 58.2b 96.5b 2Aa 92.9b 6.7b 10.5b 25.0b 5.7b 32Ab 1029.7ab
94 31.2a 56.9c 94.3c 2.lb 81.6c 6.2c 9.3c 22.8c 6.lb 30.2b 694.7b
82 27.9bc 54Ad 92. ld 6c 69.1d 15.6c 9cd 20.2d 86.7a 27.5bc 587.2b
70 21.0c 52.8e 91.1d 1.2d 63.le 4.8d 8.3d 18.7d 7.9a 27.3c 431 .9b
Mean 34A 56.7 91.1 1.9 . 80.2 6.2 9.7 23A 6.2 31.3 850.9
1999
118 45.1a 6 1.7 a 94.9a 2.7a 96.3a 6.8a ll.la 25.8a 6.1d 31.8a 1117.9a
106 42.8b 60.lb 92.5b 2.5ab 92Aa 6.3b 10.6b 24.6b 6.7c 27.8b 970.5b
94 41.3c 57.7c 90.9c 2.3b 85.1b 5.9c 9.9c 21.8c 7Ac 24.7c 784.2c
82 38.3d 55.9d 89.5d 1.5c 73.7c 5.ld 9Ad 20.8d 8.6b 23Ad 676.3d
70 36.6e 54.5e 87.3e 0.8d 67.2d 5.0e 8.6e 19Ae 9.la 21Ad 561 .3e
Mean 40.8 58.0 91.0 1.9 82.9 5.8 9.9 22.5 7.6 25.8 822.2
Both seasons combined
118 47.3a 61.3a 97.7a 2.6a 96.3a 7.la 1 1.2 a 28.0a 5.3d 35.3a 1321.9a
106 42Aa 59.2b 94.5b 2Aa 91.7a 6.7b 10.6b 24.7b 6.2d 30.1b 1037.5b
94 36.3b 57.3c 92.6c 1.8b 83.3b 5.9c 9.6c 22.3c 6.8c 27Ab 733.1c
82 33.1 bc 55.2d 90.8d 1.5c 71Ac 5.3d 9.2d 20.5d 7.8b 25Ac 625.0c
70 28.8c 53.7e 89.2e 1.0d 65.2d 4.ge 8.5e 18.9d 8Aa 24.5c 500.0d
Grand 37.6 57.3 93.0 1.9 81.6 6.0 9.8 22.9 7.0 28.6 834A
mean
Values followed by the same letter are not sIgnificantly dIfferent at 5% level oflsd.
Wat = watering regimes; PHT = plant height; RTR = percent reproductive tillers; DH = days
to 50% heading; DPM = days to 50% maturity; KWT = kernel weight; EA = ear length;
SPK = spike lets per head; SF = sterile florets per head; TLR = tillers per plant.
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