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Output from uspest.org/wea crop degree-day/phenology model program:
Heat Units and predictions of key events from daily weather data
==============================MODEL INPUTS================================
Model species/general links: wheat (Hard Red)
Type: crop
Model source/other links: Miller MSU, Miller et al. 2001
Calculation method: simp avg/grow
Lower threshold: 32 degrees Fahrenheit
Setting upper threshold to: 130 F (default)
Directions for starting/BIOFIX: planting date
No starting/BIOFIX date, set to: default date 4 1
Ending date: 7 0
Model validation status: partly validated
Region of known use: Montana
==============================EVENTS TABLE================================
1. 290 DD after biofix 0.9-germination: coleoptyle breaks through soil
2. 350 DD after biofix 1.1-1st leaf unfolds
3. 680 DD after biofix 2.1-1st tiller visible
4. 1000 DD after biofix 3.1-1st node detectable
5. 1320 DD after biofix 4.1-flag leaf sheath extended
6. 1650 DD after biofix 5.1-tip of inflor. emerged, 1st spiklet just visible
7. 1960 DD after biofix 6.1-1st anthers of flowers visible
8. 2290 DD after biofix 7.1-1st grains reach half of final size
9. 2740 DD after biofix 8.5-soft dough stage grain development
10. 2930 DD after biofix 9.2-grains ripe and hard
==============================MODEL OUTPUT================================
Weather station: 2017 KPHX METAR Phoenix Sky Hrb Int Ap AZ Lat:33.4278 Long:-112.0033 Elev:1115
mn day max min precip DD32 CUMDD32 event
-- --- ----- ----- ------ ---- ------- -------
4 1 73.40 51.80 0.00 30.60 30.6 * START *
4 2 82.40 53.10 0.00 35.75 66.3
4 3 84.90 59.00 0.00 39.95 106.3
4 4 82.10 56.20 0.00 37.15 143.4 Hx Hn
4 5 84.90 66.20 0.00 43.55 187.0
4 6 91.40 60.10 0.00 43.75 230.8
4 7 90.00 62.60 0.00 44.30 275.1
4 8 89.60 60.80 0.00 43.20 318.2 0.9-germination: coleoptyle breaks through soil
4 9 80.60 60.80 0.00 38.70 356.9 1.1-1st leaf unfolds
4 10 84.90 55.40 0.00 38.15 395.1
4 11 89.10 57.20 0.00 41.15 436.2
4 12 91.90 60.80 0.00 44.35 480.6
4 13 93.90 64.40 0.00 47.15 527.8
4 14 90.00 62.10 0.00 44.05 571.8
4 15 88.00 60.80 0.00 42.40 614.2
4 16 91.40 62.10 0.00 44.75 658.9
4 17 93.20 62.10 0.00 45.65 704.6 2.1-1st tiller visible
4 18 95.00 64.40 0.00 47.70 752.3
4 19 90.00 69.80 0.00 47.90 800.2
4 20 93.20 64.00 0.00 46.60 846.8
4 21 95.00 62.10 0.00 46.55 893.3
4 22 96.80 64.40 0.00 48.60 941.9
4 23 99.00 68.00 0.00 51.50 993.4
4 24 93.00 69.10 0.00 49.05 1042.5 3.1-1st node detectable
4 25 87.80 69.10 0.00 46.45 1089.0
4 26 90.00 64.00 0.00 45.00 1134.0
4 27 93.00 68.00 0.00 48.50 1182.5
4 28 87.80 66.90 0.00 45.35 1227.8
4 29 81.00 61.00 0.00 39.00 1266.8
4 30 87.80 57.20 0.00 40.50 1307.3
5 1 93.90 62.10 0.00 46.00 1353.3 4.1-flag leaf sheath extended
5 2 97.00 66.20 0.00 49.60 1402.9
5 3 100.40 69.10 0.00 52.75 1455.6
5 4 102.90 73.00 0.00 55.95 1511.6
5 5 108.00 75.90 0.00 59.95 1571.5
5 6 98.60 73.00 0.00 53.80 1625.3
5 7 73.90 64.00 0.00 36.95 1662.3 5.1-tip of inflor. emerged, 1st spiklet just visible
5 8 82.90 60.10 0.01 39.50 1701.8
5 9 75.90 57.00 0.10 34.45 1736.2
5 10 80.10 60.10 0.00 38.10 1774.3
5 11 97.00 64.00 0.00 48.50 1822.8
5 12 96.80 71.10 0.00 51.95 1874.8
5 13 99.00 71.10 0.00 53.05 1927.8
5 14 93.20 69.80 0.00 49.50 1977.3 6.1-1st anthers of flowers visible
5 15 88.00 69.10 0.00 46.55 2023.9
5 16 78.80 60.80 0.00 37.80 2061.7
5 17 87.10 62.10 0.00 42.60 2104.3
5 18 86.00 66.20 0.00 44.10 2148.4
5 19 87.80 62.10 0.00 42.95 2191.3
5 20 93.90 68.00 0.00 48.95 2240.3
5 21 100.90 69.80 0.00 53.35 2293.6 7.1-1st grains reach half of final size
5 22 104.00 73.00 0.00 56.50 2350.1
5 23 104.00 77.00 0.00 58.50 2408.6
5 24 108.00 75.00 0.00 59.50 2468.1
5 25 102.00 79.00 0.00 58.50 2526.6
5 26 96.80 73.40 0.00 53.10 2579.7
5 27 96.80 69.80 0.00 51.30 2631.0
5 28 102.00 71.60 0.00 54.80 2685.8
5 29 104.00 73.00 0.00 56.50 2742.3 8.5-soft dough stage grain development
5 30 100.90 77.00 0.00 56.95 2799.3
5 31 100.90 75.20 0.00 56.05 2855.3
6 1 99.00 78.10 0.00 56.55 2911.9
6 2 102.00 75.00 0.00 56.50 2968.4 9.2-grains ripe and hard
6 3 107.60 78.10 0.00 60.85 3029.2
6 4 107.60 82.00 0.00 62.80 3092.0
6 5 107.60 82.40 0.00 63.00 3155.0
6 6 107.60 84.00 0.00 63.80 3218.8
6 7 106.00 82.00 0.00 62.00 3280.8
6 8 105.80 78.10 0.00 59.95 3340.8
6 9 106.00 79.00 0.00 60.50 3401.3
6 10 102.00 78.10 0.00 58.05 3459.3
6 11 100.90 75.20 0.00 56.05 3515.4
6 12 93.20 75.20 0.00 52.20 3567.6
6 13 96.80 69.10 0.00 50.95 3618.5
6 14 102.90 70.00 0.00 54.45 3673.0
6 15 108.00 73.00 0.00 58.50 3731.5
6 16 109.40 75.20 0.00 60.30 3791.8
6 17 109.90 78.10 0.00 62.00 3853.8
6 18 111.90 80.10 0.00 64.00 3917.8
6 19 115.00 84.00 0.00 67.50 3985.3
6 20 118.90 90.00 0.00 72.45 4057.7
6 21 117.00 89.60 0.00 71.30 4129.0
6 22 113.00 91.00 0.00 70.00 4199.0
6 23 111.90 87.10 0.00 67.50 4266.5
6 24 116.60 87.80 0.00 70.20 4336.7
6 25 116.10 89.00 0.00 70.55 4407.3 Mn
6 26 111.90 91.00 0.00 69.45 4476.7
6 27 109.90 86.00 0.00 65.95 4542.7
6 28 108.00 86.00 0.00 65.00 4607.7
6 29 108.00 82.40 0.00 63.20 4670.9
6 30 109.40 82.40 0.00 63.90 4734.8
Forecast using: 1910 KPHX PRISM_rev1_4km 2007-2016 AVERAGES Lat33.4278 Long-112.0033 DD50
wheat (Hard Red) Miller MSULocation: 2017 KPHX Phoenix Sky Hrb 1910 KPHX PRISM_rev1_4km 2007-2016 AVERAGES | Date | DDs | Event |
| 4-8-17 | 318 | 0.9-germination: coleoptyle breaks through soil |
| 4-9-17 | 357 | 1.1-1st leaf unfolds |
| 4-17-17 | 705 | 2.1-1st tiller visible |
| 4-24-17 | 1042 | 3.1-1st node detectable |
| 5-1-17 | 1353 | 4.1-flag leaf sheath extended |
| 5-7-17 | 1662 | 5.1-tip of inflor. emerged, 1st spiklet just visible |
| 5-14-17 | 1977 | 6.1-1st anthers of flowers visible |
| 5-21-17 | 2294 | 7.1-1st grains reach half of final size |
| 5-29-17 | 2742 | 8.5-soft dough stage grain development |
| 6-2-17 | 2968 | 9.2-grains ripe and hard |
