Table 3.2. Stability parameters as estimated by linear regression and frequency in top five positions for yield over 17 locations in the URHRSWPN, 1981. % in b 1 Sd2 2 Top 5 ----------------------------------------------------- MN73167 1.21 13 76 MN7357 1.20 9 53 ND581 1.28 19 41 MN73168 1.07 12 29 HS 79304 .88 28 24 HS 79348 .89 20 29 Butte 1.03 13 18 NK75S2634 1.03 25 29 SK2861 1.21 17 24 ND574 1.24 11 12 MT7648 1.08 12 12 NK75S2631 1.04 18 17 ND575 1.22 47 17 X6718 .93 11 24 SD2854 1.06 14 12 X6753 1.03 7 0 SD2868 .91 35 12 Era .88 16 12 HS7664 1.15 14 12 ND585 1.01 10 6 ND573 1.09 10 0 ID0162 .88 35 12 SD2860 1.08 17 0 MT7836 .75 32 6 WA6870 1.15 48 17 Waldron .94 4 0 RL4352 .83 46 6 Chris .87 22 0 WA6865 .75 19 0 Marquis .59 52 0 ------------------------------------------------------------------------------------- 1 = b = slope (response to environments) 2 = Sd2 = mean square deviations from linearity