Browsing by Author "Knox, M."

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2008 Statewide Spring Dry Pea and Lentil Variety Evaluations
(Central Agricultural Research Center, 2008) Chen, Chengci; Neill, Karnes E.; Carlson, G. R.; Miller, John H.; Stougaard, Robert N.; Strang, L.; Westcott, M.; Knox, M.; Eckhoff, Joyce L.; Miller, Perry R.; Holmes, Jeffrey A.; Tarum, M.; Koenig, V.
This paper evaluates spring dry pea and lentil varieties for grain production potential in diverse Montana environments. Dry pea grain yields were respectable among most of the testing sites (Table 3). Havre had the greatest production, with a trial average (converted to 13% moisture) of nearly 65 bushels acre-1 (65.6 bu/acre – 3,868 lbs/acre). Moccasin had the worst yield averaging less than 17 bushels acre-1 (16.1 bu/acre - 986 lbs/acre) which is much below long-term means and is thought to be due to poor sub-soil moisture, hail damage, snow and record lows in mid-June, and an insect infestation. As expected, no single entry was the top yielding variety at every location. However, the smooth yellow line PS9910140 did top the trial yields at three locations, and was among the top cultivars in the other locations. Lentil grain yields ranged from 450 to 2300 lbs acre-1 and were respectable across the state (Table 7), with the exceptions being Conrad (450 lbs acre-1), which had a poor stand establishment and Sidney (trial abandoned), which had poor soil moisture at seeding and experienced drought-like conditions through the growing season. Differences in grain yield between the dry pea and lentil trials at Moccasin can be attributed to planting of the lentil trial in a different field, which contained better stored soil moisture. The “Richlea”-type lentil line LC01602300R showed the greatest seed production at three of the six sites, with a grain yield ranging from 9.0 (at Conrad) to over 44 bushels acre-1 (Creston), but was not significant at any location (based on LSD0.05).
Evaluation of Dry Field Pea for Forage Production in Montana (Uniform Dry Pea Forage Trial) (2001)
(Central Agricultural Research Center, 2001) Wichman, David M.; Neill, Karnes E.; Holmes, Jeffrey A.; Kephart, Ken D.; Knox, M.; Lamb, Peggy F.; Miller, Perry R.; Westcott, M.
This report evaluates Austrian winter pea variety forage production in pure stands and with a companion cereal forage (Haybet hay barley) under different cropping and environmental conditions in Montana. Average dry matter forage production under dryland conditions was 3,320 pounds per acre (1.7 tons/acre) and under irrigation was 7,044 pounds per acre (3.5 tons/acre; Table 26). Haybet hay barley was the top dry forage producer at all sites (significant under irrigation), having an average dryland production of 4,389 lbs/acre (2.2 tons/acre) and an irrigated average production of 10,980 pounds per acre (5.5 tons/acre). Dry pea varieties mixed with barley had higher yields compared to pure stands (not significant at Bozeman). When all peas and pea/barley mixed plots were combined and compared with pure barley forage production, pure pea plots had significantly lower yields under both cropping conditions (Table 27). Under irrigation, the pea/barley mixed plots also had significantly lower forage yields than pure barley stands. These differences may be attributed to the disparity in total plot (pea + barley in mixed plots) stand densities between pure pea, pure barley and mixed plots under dryland (8, 12, and 12 plants/ft2, respectively) and irrigated conditions (10, 21 and 17 plants/ft2; see Table 24).
Evaluation of Dry Field Pea for Forage Production in Montana (Uniform Dry Pea Forage Trial) (2002)
(Central Agricultural Research Center, 2002) Wichman, David M.; Neill, Karnes E.; Cash, S.D.; Johnson, D.; Kephart, Ken D.; Knox, M.; Lamb, Peggy F.; Strang, L.; Westcott, M.
This report evaluates Austrian winter pea variety forage yield performance in pure stands and with a companion cereal forage (Haybet hay barley) under different cropping and environmental conditions in Montana. Since 1999, pure Haybet hay barley stands had the highest dry matter forage production under both dryland and irrigated conditions (significant under dryland), with an average annual forage production of 3,600 and 9,694 pounds per acre under dryland and irrigation, respectively (Table 30). Dry pea cultivars mixed with barley had significantly higher yields than their pure dry pea equivalents. Dry matter protein contents were highest in the pure Sioux Austrian winter pea stands under both dryland and irrigated sites (Table 31). However, total protein production was greatest (although not significantly) for the Melrose Austrian winter pea mixed with barley plots and Granger Austrian winter pea mixed with barley plots under dryland and irrigated sites, respectively. By combining treatment effects, pure Haybet hay barley consistently out-yielded dry pea/barley mixed and pure dry pea treatments (Table 32). Quality analysis, by measure of dry matter protein content, indicates that, although pure pea stands and mixed dry pea stands have higher protein contents, no significant differences in protein yield were seen among treatments (Table 33).