Agri Kultuur March/ Maart 2016 - Page 38

the highest yield, followed by SST 875 (8.62 ton/ha) and SST 835 (8.58 ton/ha) (Figure 4). KwaZulu-Natal Irrigation areas KwaZulu-Natal was the region worst affected by the heat and drought in 2015. The average yield was low at 5.42 ton/ha. However, the combined analysis showed that Renoster (6.18 ton/ha), SST 8135 (6.13 ton/ha), SST 884 (6.01 ton/ha) and SST 8134 (6.00 ton/ha) had the highest yields (Table 4). The yields of these cultivars were not significantly different from each other. The four year average grain yields indicated that SST 806 (7.49 ton/ha) produced the highest yield, followed by SST 835 (7.43 ton/ha) and Krokodil (7.30 ton/ha) (Figure 5). Average hectolitre mass for 2015 Figure 4. Three year average yield (ton/ha) of cultivars included in the Highveld irrigation areas during the period from 2013 to 2015 was 81.60 kg/hl. Grain protein content was very high during 2015 at 14.57%. Falling number values were generally high, with an average of 308 seconds. Table 4. Grain yield, hectolitre mass, protein content and falling number of entries for KwaZulu Natal irrigation areas in 2015 Cultivar Buffels Duzi Koedoes Krokodil PAN3400 PAN 3471 PAN 3497 PAN 3515 PAN 3623 Renoster Sabie SST 806 SST 8125 SST 8134 SST 8135 SST 835 SST 843 SST 866 SST 867 SST 875 SST 877 SST 884 SST 895 Average LSDt(0,05) Yield (ton/ha) Rank 4.35 5.24 5.52 5.77 5.33 5.33 5.13 5.73 5.69 6.18 4.85 5.57 4.88 6.00 6.13 5.25 5.37 5.54 4.36 5.75 5.06 6.01 5.54 5.42 0.19 23 17 12 5 14 15 18 7 8 1 21 9 20 4 2 16 13 11 22 6 19 3 10 Hectolitre mass (kg/hl) 80.61 81.23 82.02 81.83 81.38 82.44 82.07 82.07 81.78 80.36 80.30 83.19 82.15 80.65 82.56 82.61 82.40 81.55 80.38 81.62 79.52 82.12 82.03 81.60 0.65 Rank Protein content (%) Rank Falling number(s) Rank 19 17 11 12 16 4 8 8 13 21 22 1 6 18 3 2 5 15 20 14 23 7 10 15.34 14.49 14.57 13.81 14.34 14.26 14.24 13.91 14.69 14.20 15.18 14.59 14.54 14.69 14.49 14.22 16.01 13.86 15.20 14.19 14.87 14.44 14.94 14.57 0.44 2 12 10 23 15 16 17 21 7 19 4 9 11 7 12 18 1 22 3 20 6 14 5 304 303 318 297 309 318 308 301 313 295 317 309 316 306 309 315 308 307 301 310 293 318 303 308 14.54 16 17 1 21 9 2 12 20 7 22 4 10 5 15 10 6 12 14 19 8 23 3 18