Spring Wheat Variety Screening R.L. Dovel, R.S. Karow, and G. Chilcotel 11■1111111■1111•11111■1111•111■11•11M Introduction Spring wheat is grown on approximately 8,500 acres annually in the Klamath Basin. Soft white (SW) and hard red (HR) selections predominate; however, interest has grown recently in the hard white (HW) class. In 1994, spring wheat variety trials were conducted at the KES in cooperation with Oregon State University and western regional plant breeding and evaluation programs. Cold-tolerant, short-season cultivars are needed in the Klamath Basin due to a short growing season with the possibility offrost throughout the growing season. Entries evaluated in these trials included SW, HW, and HR selections. Historically, there has been little disease or insect pressure on small grains in the Klamath Basin. However, the recent introduction ofthe Russian wheat aphid has altered this situation. Wheat stem maggot is endemic in the area and generally causes only slight damage at the KES. Under mild winter and warm spring conditions in 1992 and 1993, significant damage to cereal crops was experienced, with up to 50 percent of the tillers affected at KES and with serious crop losses in several commercial fields in the Lower Klamath Lake area. Procedures All small grain variety trials at the KES were on land planted in potatoes the previous year. Soils at the station include Poe, Fordney, and Hosley series, all ofwhich have a fine loamy to sandy texture and are moderately deep and somewhat poorly drained. All plots were sprinkler irrigated. All trials were arranged in a randomized complete block design with three or four replications. Plots at the KES were planted on April 21. Seed was planted at a depth of 1 inch. The seeding rate for wheat trials was 80 lb/ acre. All plots were fertilized with 100 lb N, 60 lb P 2 0 5 , and 44 lb S/acre at time of seeding. Plots measured 5 x 20 feet, with 10 rows at 6-inch spacing. 1/ Associate Professor, Professor, and Research Technician, respectively, Oregon StateUniversity, Klamath Experiment Station, Klamath Falls, OR. Acknowledgments: Henzel Farms provided the off-station site and crop care. Klamath Experiment Station 125 Spring Wheat Variety Screening Bromoxynil and MCPA were applied at labeled rates to control broadleaf weeds. Plots were harvested in late September using a plot combine with a 5foot wide header. Grain yield was recorded for all plots. Test weight was measured in only one replication. Results and Discussion Western Regional Spring Wheat Nursery Penawawa was the highest yielding entry in the western regional spring wheat nursery (Table 1). Penawawa has consistantly been a top yielding variety for several years and is the highest yielding variety over a three-year period (Table 2). Centennial, a recently released SW variety, produced yields which were not significantly different from Penawawa. Further investigation of Centennial is warrented due to its performance in this and other trials. Other entries with yields not significantly different than Penawawa in 1994 include OR 895181, ID 450, ID 448, SDM 405, and SDM 406. Alpowa is a recent SW release from Washington State. It produced yields lower than Penawawa in 1994 and over a three-year period, but more than the trial average. The HW line ID 377S was the second highest yielding entry in the trial over a three-year period. It has good milling and baking quality and is being considered for release by the University of Idaho. OSU Hard White Spring Wheat Variety Trial The highest producing entry in the OSU hard red spring wheat variety trial in 1994 was SERI 82 (Table 3). This was the only entry in the trial to produce significantly more grain than Klasic, the HW industry standard. Other high yielding lines not significantly different from SERI 82 in 1994 included: OR4870453, ID377S, OR918049, OR4870255, and OR4895181. Both SERI 82 and OR4870453 produced significantly more grain than Westbred 906R and Westbred 926, the two HR standards included in the trial. SERI 82 has only been in the trial for two years, but over that period it has produced more grain than any other entry in the trial (Table 4). Other entries which produced significantly more grain than Klasic over the same two-year period included: OR4870453, OR918049, OR4895181, 126 Klamath Experiment Station Spring Wheat Variety Screening 0R918050, and 0R918085. Over a three-year period, OR4870453 and OR4895181 yielded significantly more than Klasic (Table 4). OR 4870279 produced yields equivalent to Klasic in this trial over a three-year period, and much higher yields in the western regional trial. This HW line has good baking quality and may be released if yields in other areas of the Pacific Northwest justify it. OSU Hard Red Spring Wheat Variety Trial Standard HR spring wheat varieties in the Klamath Basin are Westbred 906R and Yecora Rojo. Spillman, a recently released variety, is increasing in acreage. There was not a significant difference in grain yield among these varieties in the 1994 trial (Table 5). Yields of nine entries, including McKay and Spillman, were not significantly less than OR 4920002, the highest yielding entry in the 1994 trial. Yecora Rojo and Klasic reached 50 percent heading earlier than all other entries in the trial. Over a three-year period, only 0R4870400 produced significantly higher yields than Spillman and McKay, the two highest yielding standard varieties in the trial (Table 6). Grain baking quality is an important consideration in the selection of HR wheat varieties. Further testing examining baking quality oftop yielding entries will be needed prior to release of these lines. Soft White Spring Wheat Variety Trial Centennial was the highest yielding entry in the trial in both 1993 and 1994 (Tables 7 and 8). Centennial is a recent release from the University of Idaho, which was planted in joint trials at KES and the Intermountain Research and Extension Center from 1989 to 1991. Yields ofthis line were comparable or superior to all released SW varieties at both locations. This new SW variety produced significantly more than all other entries in the trial over that two-year period. Centennial is also an earlier maturing variety. It reached 50 percent heading earlier than any other entry in the trial in 1994 (Table 7) and was second earliest in 1993. SW wheat varieties have been slow to mature in the cool fall conditions common in the Klamath Basin. The development of a earlier maturing, high yielding SW variety should help Klamath Experiment Station 127 Spring Wheat Variety Screening producers who choose to grow this commodity in the Basin. Further plot scale testing and small field scale testing is warrented and should be undertaken prior to large field scale planting ofthis variety. OSU State Wide Spring Wheat Variety Trial Centennial was the highest producing entry in this trial at KES over the last two years (Table 9). As in the trial mentioned above, Centennial produced significantly more grain than any other entry in the trial over a two-year period. The next highest producing group of entries included Owens, a SW wheat, Klasic, a HW wheat, and Treasure, a SW wheat. This trial was also established on two organic soil sites in 1994. Centennial was the highest producing entry at all three sites in 1994 (Table 10). The two triticale entries in the trial failed to produce grain yields equal to the higher producing SW or HW entries at any location. 128 Klamath Experiment Station Spring Wheat Variety Screening Table 1. Grain yield, test weight, lodging, plant height, and days to 50 percent heading of western regional spring wheat nursery varieties at Klamath Experiment Station, OR, 1994. Entry Variety/ selection Class Test Yield weight Lodge Height Heading date lb/A lb/bu 0/0 inches Julian McKay Federation Penawawa Klasic Serra HR SW SW HW HR 6230 4940 7750 6270 6500 60.5 60.5 63.5 64.0 62.0 0 0 0 0 0 36 52 35 28 36 180 185 179 175 179 ID 377S Alpowa (WA7677) ID 439 ID 429 UT 1597 HW SW HR SW HR 7000 7020 5720 7000 6910 64.5 64.0 62.0 61.5 63.0 0 0 0 0 0 37 38 34 39 39 179 182 179 178 180 UT 850646 Sunstar 2 ML 42 Wawawai (WA7712) Dirlcwin HR HR SW SW SW 6900 6720 6540 6310 6040 61.5 63.5 63.0 63.0 59.0 0 0 0 0 0 35 35 37 39 37 182 178 182 180 182 16 17 18 19 20 UT 1117 ID 448 ID 452 OR 487374 OR 487410 HR SW HR HW HR 6550 7320 6500 5350 6790 63.5 62.5 62.5 61.5 62.0 0 0 0 0 0 41 36 36 26 36 181 182 184 179 181 21 22 23 24 25 OR 895224 FM 5702 FM 8631 SDM 405 SDM 406 SW HR HR SW SW 5720 6220 6100 7280 7190 60.5 63.0 63.0 62.5 63.0 0 0 0 0 0 32 28 27 36 36 182 175 176 180 179 26 27 28 29 30 ID 450 ID 456 ID 462 ID 463 OR 488372 SW SW HR HR HW 7360 6460 6360 5560 6320 63.5 61.0 63.0 63.0 64.0 0 0 0 0 0 35 37 37 35 36 178 178 178 178 182 31 32 33 34 35 OR 895181 OR 895207 UT 2464 UT 1146 UT 1175 HW HW HR HR HR 7670 4870 6240 6980 6660 61.5 61.5 62.5 62.0 63.0 0 0 0 0 0 37 31 38 39 39 180 181 181 181 181 36 Centennial SW 7320 64.0 0 36 179 6520 7.2 660 62.5 0 0 0 36 4.2 2.1 180 0.5 1.3 1 2 3 4 5 6 7 8 9 10 11 12 13 14 * 15 Mean CV (%) LSD (0.05) *Entry 15, Dirkwin was substituted For Wadual 94. Klamath Experiment Station 129 Spring Wheat Variety Screening '1•111111=111111=111r -- Table 2. Three-year summary of spring wheat yields at the Klamath Experiment Station, OR, 1992-1994. Variety/ selection Class 1994 1993 1992 Yield 2-yr avg lb/A 3-yr avg rank lb/A rank McKay Federation Penawawa Klasic Serra HR SW SW HW HR 6230 4940 7750 6270 6500 5500 4980 6120 4900 5060 5480 4940 6600 5170 4540 5860 4960 6930 5580 5780 11 23 1 18 14 5740 4950 6820 5450 5370 7 13 1 9 11 ID 377S Alpowa (WA7677) ID 439 ID 429 UT 1597 HW SW HR SW HR 7000 7020 5720 7000 6910 6010 5270 5250 5490 5600 6200 6160 4940 5730 6010 6500 6140 5490 6240 6250 4 9 19 7 6 6400 6150 5300 6070 6170 2 4 12 6 3 UT 850646 Sunstar 2 ML 42 Wawawai UT 1117 HR HR SW SW HR 6900 6720 6540 6310 6550 5510 4990 4930 4900 5190 6030 5170 4770 6200 5860 5740 5600 5870 8 12 15 17 10 6150 5630 5420 5 8 10 ID 448 ID 452 OR 487374 OR 487410 OR 895224 SW HR HW HR SW 7320 6500 5350 6790 5720 5950 4720 4380 4910 4640 6640 5610 4870 5850 5180 3 16 24 13 22 FM 5702 FM 8631 SDM 405 SDM 406 ID 450 HR HR SW SW SW 6220 6100 7280 7190 7360 4690 4590 6190 5800 5460 5340 6740 6490 20 21 2 5 ID 456 ID 462 ID 463 OR 488372 OR 895181 SW HR HR HW HW 6460 6360 5560 6320 7670 OR 895207 UT 2464 UT 1146 UT 1175 Centennial Dirlcw in HW HR HR HR SW SW 4870 6240 6980 6660 7320 6040 Mean CV (%) LSD (0.05) 130 Klamath Experiment Station 6520 7.2 660 5230 6.0 460 5520 8.0 610 5880 5820 Spring Wheat Variety Screening Table 3. Grain yield, test weight, lodging, plant height, and days to 50 percent heading of OSU hard white spring wheat varieties at the Klamath Experiment Station, OR, 1994. Entry Variety/ selection Yield Test weight Lodge Height lb/A lb/bu Heading date inches Julian Bird damage 1 2 3 4 5 Klasic OR484013 OR4870279 OR4870453 OR4870255 5780 5910 5860 6570 6150 63.5 62.0 61.5 61.5 64.0 0 0 0 0 0 25 34 33 33 37 173 184 179 183 178 0 13 5 4 0 6 7 8 9 10 OR4870374 OR4880372 OR4895181 OR4895207 1D3775 5970 5780 6120 4800 6400 62.0 63.5 61.0 61.5 64.0 0 0 0 0 0 26 34 35 31 37 179 182 180 181 179 0 13 10 0 8 11 12 13 14 15 OR4880348 OR488528 SERI 82 OR918062 OR918063 5360 5720 7150 5610 4860 61.5 63.0 62.0 61.0 60.0 0 0 0 0 0 31 30 33 34 32 180 179 180 187 184 3 5 3 15 15 OR918085 OR918090 Westbred 9068 OR4900157 OR918049 5140 5390 5340 4160 6230 60.5 62.5 62.5 61.0 60.5 0 0 0 0 0 32 35 35 31 35 187 184 178 181 187 19 1 5 0 8 OR918050 OR4920096 OR9437536 Westbred 926 5600 4430 5210 5420 61.0 62.5 60.0 63.0 0 0 0 0 36 33 35 35 187 182 182 180 5 5 21 5 5620 13.8 1100 61.9 0 0 0 33 4.7 2.2 181 0.5 1.4 6.5 179 17 16 17 * 18 19 20 21 22 23 24 Mean CV (%) LSD (0.05) *Entry 18 was changed from Wadual to Westbred 906R Klamath Experiment Station 131 Spring Wheat Variety Screening Table 4. Three-year summary of grain yields of OSU hard white spring wheat varieties at the Klamath Experiment Station, OR, 1992-1994. Variety/ Entry s election 1994 1993 1992 lb/A lb/A lb/A lb/A rank lb/A rank 3-year avg 1 2 3 4 5 Klasic OR 484013 OR 4870279 OR 4870453 OR 4870255 5780 5910 5860 6570 6150 2960 4100 3590 4530 3800 5340 4970 5440 5820 5090 4370 5000 4720 5550 4980 15 7 12 2 8 4690 4990 4960 5640 5010 9 4 5 1 3 6 7 8 9 10 OR 4870374 OR 4880372 OR 4895181 OR 4895207 OR 4880348 5970 5780 6120 4800 5360 2960 3950 4600 3610 3350 5210 5000 5170 4530 4650 4460 4870 5360 4210 4360 14 10 4 17 16 4710 4910 5300 4320 4450 8 7 2 11 10 11 12 13 14 15 OR 488528 SERI 82 OR 918062 OR 918063 OR 918085 5720 7150 5610 4860 5140 3850 4310 4270 4490 5070 5220 4790 5730 4940 4670 5110 11 1 9 13 6 4930 6 16 17 18 19 20 OR 4900157 OR 918049 OR 918050 ID 377S OR 918090 4160 6230 5600 6400 5390 3790 4700 4820 3980 5460 5210 18 3 5 21 22 23 24 Westbred 906R 5340 OR 49200% 4430 OR 9437536 5210 Westbred 926 5420 Mean CV (%) LSD (0.05) 132 Yield 2-year avg Klamath Experiment Station 5620 13.8 1100 4040 11.8 680 5130 17.3 1210 4880 13.2 640 4900 14.8 590 Spring Wheat Variety Screening Table 5. Grain yield, test weight, lodging, plant height, and days to 50 percent heading of OSU hard red spring wheat varieties at the Klamath Experiment Station, OR, 1994. Variety/ Entry selection Yield Test weight lb/A Ib/bu McKay Westbred 906R Yecora Rojo Spillman OR 485010 6270 5790 6050 6340 5880 62.5 62.0 63.5 61.5 63.5 6 7 8 9 10 Klasic OR 4870456 OR 4870400 OR 4870401 OR 4880189 6020 5880 6560 5970 6160 11 12 13 14 15 OR 4870410 OR 4895019 OR 4895103 OR 4895011 OR 4895014 16 17 18 19 20 Lodge Height Heading date Bird damage inches Julian 0 0 0 0 0 36 36 25 34 35 180 178 175 180 180 0 5 0 3 1 64.0 63.0 64.5 65.0 63.0 0 0 0 0 0 28 33 37 36 32 175 178 185 184 180 0 0 5 10 0 6400 6900 6110 6030 5390 63.0 63.5 63.0 64.0 63.0 0 0 0 0 0 36 35 35 34 34 180 177 183 180 178 0 0 5 4 6 OR 4930032 OR 4930033 OR 4920002 OR 4910028 OR 4900041 5290 5890 6950 6120 6590 63.0 64.0 63.0 61.5 64.5 0 0 0 0 0 34 32 34 34 34 181 181 182 178 182 6 0 1 0 1 21 22 23 24 25 OR 4900050 Star"S" Express WPB 926 WPB 936 6590 5600 6050 5770 6400 62.0 62.0 63.0 62.0 61.5 0 0 0 0 0 35 31 31 36 33 181 185 181 178 178 0 0 0 3 0 26 27 28 OR 4930034 OR 4930035 OR 4880287 6200 6250 6930 63.0 63.0 63.5 0 0 0 28 28 28 179 180 182 0 0 0 6160 7.9 680 63.0 0 0 0 33 4.7 2.2 180 0.4 1.1 1.8 252 6.3 1 2 3 4 5 Mean CV (%) LSD (0.05) Klamath Experiment Station 133 Spring Wheat Variety Screening Table 6. Three-year summary ofgrain yields of OSU hard red spring wheat varieties at the Klamath Experiment Station, OR, 1992-1994. Varie ty/ Entry selection 1 2 3 4 5 Yield 2-year avg Class 1994 1993 1992 lb/A lb/A lb/A lb/A rank lb/A rank HR McKay Westbred 906R HR Yecora Rojo HR Spillman HR OR 485010 HR 6270 5790 6050 6340 5880 4550 3950 4060 4560 4280 5130 4560 4990 4990 4650 5410 4870 5060 5450 5080 9 16 15 8 14 5320 4760 5040 5300 4940 7 14 11 8 12 3-year avg 6 7 8 9 10 Klasic OR 4870456 OR 4870400 OR 4870401 OR 4880189 HW HR HR HR HR 6020 5880 6560 5970 6160 3260 3770 4860 5140 4410 4520 4820 5890 5010 4650 4640 4830 5710 5550 5290 19 17 3 5 13 4600 4830 5770 5370 5070 15 13 1 3 10 11 12 13 14 15 OR 4870410 OR 4895019 OR 4895103 OR 4895011 OR 4895014 HR HR HR HR HR 6400 6900 6110 6030 5390 4360 4510 4500 4550 4010 5210 4560 5470 4790 4370 5380 5710 5310 5290 4700 10 4 11 12 18 5320 5320 5360 5120 4590 6 5 4 9 16 16 17 18 19 20 OR 4920002 OR 4910028 OR 4900041 OR 4900050 OR 4930032 HR HR HR HR HR 6950 6120 6590 6590 5290 4680 4950 4970 4430 5620 5810 5530 5780 5510 1 6 2 7 5750 2 21 22 23 24 25 OR 4930033 Star"S" Express WPB 926 WPB 936 HR HR HR HR HR 5890 5600 6050 5770 6400 26 27 28 OR 4930034 OR 4930035 OR 4880287 HR HR HW 6200 6250 6930 4410 10.6 650 4950 12.4 860 5310 9.7 510 Mean CV (%) LSD (0.05) 134 Klamath Experiment Station 6160 7.9 680 5150 10.8 450 Spring Wheat Variety Screening Table 7. Grain yield, test weight, lodging, plant height, and days to 50 percent heading of OSU soft white spring wheat varieties at the Klamath Experiment Station, OR, 1994. Variety/ Entry selection Yield Test weight lb/A lb/bu % inches Julian Dirkwin Centennial Penawawa WA 7677 ORS 8501 6280 7420 6810 7080 7340 59.5 64.0 61.5 64.0 64.0 0 0 0 0 0 38 36 40 41 38 182 178 184 182 180 6 7 8 9 10 ORS 8427 OR 487503 OR 487570 OR 4880013 WUC 657 5730 5610 5350 7330 6490 61.5 61.0 61.5 63.0 63.0 0 0 0 0 0 38 37 37 42 34 179 187 187 182 179 11 OR 4900154 12 13 14 15 OR 4900085 OR 4895224 OR 4920094 OR 4920098 5900 5920 5320 5870 5950 61.0 63.5 61.0 62.0 63.0 0 0 0 0 0 33 35 47 33 35 187 178 182 180 178 16 17 18 19 20 OR 9437474 OR 9437475 OR 9437539 Juan M92-1535 6500 5580 5180 6810 6900 63.0 62.0 62.0 54.5 60.5 0 0 0 0 0 40 42 37 41 44 180 184 179 183 179 21 22 23 24 25 OR 4920021 OR 4920095 OR 4920111 OR 9437538 OR 9437546 6540 6510 6290 5410 6770 64.0 65.0 61.5 61.0 61.5 0 0 0 0 0 36 36 32 34 36 187 185 183 180 186 6280 9.3 820 61.9 0 0 0 38 12 6.4 182 0.6 1.4 1 2 3 4 5 Mean CV (%) LSD (0.05) Heading Lodge Height date Klamath Experiment Station 135 Spring Wheat Variety Screening Table 8. Two-year summary of grain yields of OSU soft white spring wheat varieties at the Klamath Experiment Station, OR, 1993-1994. Variety/ selection Yield 1994 1993 2-yr avg lb/A rank lb/A rank lb/A Dirkwin Centennial Penawawa ORS 8501 ORS 8427 6280 7420 6810 7340 5730 14 1 7 2 19 4930 5450 4960 5310 4380 6 2 5 3 10 5600 6440 5880 6320 5050 6 1 4 2 9 OR 487503 OR 487570 OR 4880013 OR 4900154 OR 4900085 5610 5350 7330 5900 5920 20 23 3 17 16 4740 4670 5280 5500 4710 7 9 4 1 8 5180 5010 6300 5700 5310 8 10 3 5 7 OR 4895224 OR 4920094 OR 4920098 OR 9437474 OR 9437475 5320 5870 5950 6500 5580 24 18 15 11 21 4340 11 4830 11 OR 9437539 Juan M 92-1535 OR 4920021 OR 4920095 5180 6810 6900 6540 6510 25 6 5 9 10 OR 4920111 OR 9437538 OR 9437546 WA 7677 WUC 657 6290 5410 6770 7080 6490 13 22 8 4 12 Mean CV (%) LSD (0.05) 6280 9.3 820 . 136 Klamath Experiment Station 4930 6.0 430 5600 rank Spring Wheat Variety Screening Table 9. Two-year summary ofyield and test weight of 0 SU spring wheat varieties at the Klamath Experiment Station, OR, 1993-1994. 1994 Variety/ selection Class Average 1993 Test weight Yield Test weight Yield Test weight Yield Ib/bu lb/A rank lb/bu lb/A rank lb/bu lb/A rank Calorwa Centennial Dirkwin Klasic Juan Club SW SW 11W Triticale 60.2 62.8 58.1 63.1 55.0 5560 7300 4800 6720 5440 11 1 15 2 13 59.9 61.3 58.0 62.1 51.1 3600 5210 3420 4170 3790 10 1 11 4 9 60.1 62.1 58.1 62.6 53.1 4580 6250 4110 5440 4610 10 1 11 3 9 Owens SW SW SW Triticale HR 61.5 61.0 60.8 53.9 60.3 6130 6120 6120 5910 5450 4 5 6 9 12 60.9 59.9 57.2 51.8 60.1 4960 3790 4350 3790 3880 2 6 3 8 5 61.2 60.5 59.0 52.9 60.2 5540 4960 5240 4850 4670 2 6 4 7 8 Yecora Rojo ID 392 Wawawai Alpowa (WA 7677) ID 377S HR 6200 6010 4500 5360 6050 3 8 16 14 7 61.1 3790 7 62.0 4990 5 SW SW SW HW 62.8 61.8 61.3 62.8 62.4 Wakanz SW 61.2 5700 10 60.6 5840 9.3 820 58.5 4070 6.0 430 59.2 5020 7.4 480 Penawawa Treasure Victoria Westbred 926R Mean CV (%) LSD (0.05) Klamath Experiment Station 137 Spring Wheat Variety Screening Table 10. Summary of grain yield and test weight of OSU spring wheat varieties at three locations in Klamath County, OR, 1994. Entry 1 2 3 4 5 Variety Clas s Irrigated mineral s oil Test Yield weight Irrigated organic soil Test Yield weight Unirrigated organic soil Test Yield weight lb/A lb/bu lb/A lb/bu lb/A lb/bu Alpowa (WA7677) Calorwa Centennial Dirkwin ID 377S SW CLUB SW SW HW 5360 5560 7300 4800 6050 62.8 60.2 62.8 58.1 62.4 5800 4970 5950 4870 5800 61.0 58.5 61.0 53.0 60.0 2740 2590 3060 2460 2220 59.0 58.0 61.0 52.0 55.0 6 7 8 9 10 Klasic Juan Owens Penawawa Treasure HW Triticale SW SW SW 6720 5440 6130 6120 6120 63.1 55.0 61.5 61.0 60.8 4880 4240 5290 5220 6800 59.0 47.0 58.0 58.5 58.0 2270 1040 2670 1890 2860 60.0 45.5 60.5 57.0 56.0 11 12 13 14 15 Victoria Wakanz Westbred 926R Yecora Rojo Whitebird (ID392) Triticale SW HR HR SW 5910 5700 5450 6200 6010 53.9 61.2 60.3 62.8 61.8 4650 4750 4630 4450 4920 48.0 53.0 57.0 57.0 58.0 2190 2060 2160 2060 2170 50.5 52.5 55.5 57.0 57.0 16 Wawawai (WA7712) SW 4500 61.3 5410 59.5 1710 53.5 5840 16 NS 60.6 1 1.0 5160 8.1 690 56.7 2260 11.4 430 55.6 Mean CV (%) LSD (0.05) 138 Klamath Experiment Station
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