28 Special report Hybrid Hybrid CHU 4-year 3-year 2-year 1-year DKC36-48RIB 2600 28 * 26 * 30 * A5424G2 RIB 2625 44 * A5959G2 RIB 2725 27 * 26 * 37 * DKC39-55RIB 2725 59 * 59 * 59 * P9316Q 2750 34 * P9466AML 2800 45 * DKC42-05RIB 2800 34 * 32 * 26 * 48 * P9535AM 2825 62 * 55 * 56 * P9624Q 2850 22 * B96H83AM 2850 27 * 19 * 24 * DKC44-80RIB 2850 30 * 34 * 24 * 32 * A6566G8RIB 2850 43 * NK9535-V 2850 76 nd A6572G2 RIB 2850 60 * 81 nd 102 nd NK9601-AA 2875 36 * NK9653-DV 2875 34 * 37 * 48 * DKC45-74RIB 2875 91 nd *Company removed 2875 209 + DKC46-40RIB 2900 52 * 43 * 45 * P97299AM 2900 86 nd EXP9723-DV 2900 106 nd P9823Q 2925 28 * 23 * 31 * *Experimental 2925 275 + P9845PCE 2950 116 nd DKC49-09RIB 2975 54 * 53 * 44 * 98 nd B00R96AM 3000 42 * 37 * 26 * 22 * P0035AM 3000 46 * 43 * 33 * P0075AM 3000 55 * 44 * 35 * NK9991-5122 3000 69 * 77 nd 73 nd NK0007-AA 3000 166 nd A7199G9 RIB 3025 84 nd NK0243-D 3075 39 * 31 * 30 * *experimental 3100 125 nd B04S21AM 3125 62 * 61 * 56 * 33 * B04D72Q 3125 62 * 61 * 57 * P04922Q 3125 87 nd P0404AM 3125 99 nd 136 nd 113 nd P04511AM 3125 164 nd P0529Q 3150 24 * MZ 4577SMX 3150 66 * 66 * 57 * 41 * SUSCEPTIBLE CHECK 3175 100 100 100 100 MZ 4608SMX 3200 16 * 15 * 17 * B07M64AM 3200 85 nd 95 nd 37 * MZ 4799SMX 3250 14 * P0806AM 3250 36 * P0859AM 3250 89 nd Hybrid diff (P-value) <0.0001 <0.0001 <0.0001 <0.0001 Average DON in Check (ppm) 13.9 8.8 3.4 16.0 No. environments tested 23 17 11 5 No. observations per hybrid 69 51 33 15 Table 1. DON risk assessment indices by hybrid relative to susceptible check from 2020-2023. Hybrids are sorted by crop heat unit (CHU) rating. Always use one-year data with caution. The colour scheme highlights hybrid effects within column. An index=100 means DON equal to the susceptible check. For example, this hybrid produced 28 per cent of DON compared to the susceptible check hybrid across 17 environments (over 3 years). Hybrids with an asterisk (*) are statistically lower in DON compared to the susceptible check hybrid. Hybrids with “nd” are not different statistically compared to the susceptible check hybrid. Hybrids with “+” have statistically higher DON compared to the susceptible check hybrid. In this hybrid, DON was 2.75x higher than the susceptible check hybrid. Only one-year data is available. Susceptible check hybrid Low statistical p-values indicate strong evidence that hybrid differences exist considering variability.
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