Agri Kultuur March/ Maart 2016 - Page 35

Sensako, Pannar and the ARC-Small Grain Institute. Despite the heat and drought, a considerable number of cultivars still produced profitable yields. These results once again highlighted the importance of good cultivar choice for successful irrigation wheat production in South Africa, as well as the importance of cultivar evaluation. workgroup on 11 February 2016. The report was accepted and the new recommendations for the 2016 season were finalised. In the following section, the yields of early planted irrigation cultivars in the different areas are presented. Four year average yields for the cultivars are also provided to give an indication of the yield stability. The cultivar evaluation trials were carried out in the cooler central irrigation areas, the wWarmer northern irrigation areas, KwaZulu-Natal and the Highveld. The results of the 2015 cultivar trials under irrigation were presented to the National Wheat Cultivar Adaptation CULTIVAR EVALUATION RESULTS Cooler Central Irrigation areas The average yield for the first plantings in the cooler central irrigation areas in 2015 was 9.11 ton/ha. PAN 3400 (9.90 ton/ha), SST 8125 (9.74 ton/ha), SST 806 (9.70 ton/ha) and SST 835 (9.56 ton/ha) produced the highest yields (Table 1). Average hectolitre mass was good in 2015 at 82.52 kg/hl. All cultivars had a hectolitre mass above 77 kg/hl. Grain protein content was also acceptable at 12.61%. Falling number values were high, with an average of 341 seconds. The four year average grain yields indicate that SST 806 produced the highest yield (9.48 ton/ha), followed by SST 835 (9.47 ton/ha), PAN 3400 (9.45 ton/ ha), PAN 3497 (9.41 ton/ha) and SST 884 (9.40 ton/ha) (Figure 2). It should be noted that the yields of these five cultivars were not significantly different from each other. Table 1. Grain yield, hectolitre mass, protein content and falling number of entries for the cooler central irrigation areas in 2015 Cultivar Buffels Duzi Koedoes Krokodil PAN 3400 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 8.06 8.28 9.25 9.20 9.90 8.81 9.44 9.18 9.45 8.90 9.06 9.70 9.74 9.31 9.55 9.56 8.02 8.79 8.53 9.21 8.83 9.50 9.32 9.11 0.26 22 21 11 13 1 18 8 14 7 16 15 3 2 10 5 4 23 19 20 12 17 6 9 Hectolitre mass (kg/hl) 81.17 81.62 81.83 82.00 83.49 83.77 83.44 82.38 82.99 81.06 82.09 83.64 83.28 82.13 83.48 83.28 83.18 81.87 82.90 82.47 81.26 81.89 82.67 82.52 0.61 Rank Protein content (%) Rank Falling number(s) Rank 22 20 19 16 3 1 5 13 9 23 15 2 6 14 4 6 8 18 10 12 21 17 11 12.74 12.45 12.88 11.59 12.51 12.73 12.55 12.44 12.94 12.61 12.64 12.33 12.54 12.73 12.65 12.7 13.79 12.18 12.65 12.29 12.74 12.56 12.85 12.61 0.52 5 18 3 23 17 7 15 19 2 13 12 20 16 7 10 9 1 22 10 21 5 14 4 338 331 339 323 335 349 345 333 346 330 339 352 342 354 350 344 342 337 337 343 327 348 350 341 10.95 15 20 13 23 18 5 8 19 7 21 14 2 11 1 3 9 12 16 17 10 22 6 4