Registration of ‘Griffin’ Winter Canola

Stamm, Michael; Cramer, Gary; Dooley, Scott J.; Holman, Johnathon D.; Phillips, D. V.; Rife, C. L.; Santra, Dipak K.

doi:10.3198/jpr2014.05.0037crc

Cited by 6 publications

(8 citation statements)

References 6 publications

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“…Oil and protein concentration, and fatty acid composition were measured from 8 and 2 g seed samples, respectively, at the University of Idaho Brassica Breeding and Research Program's Oilseed Quality Laboratory (http://www.cals.uidaho.edu/brass ica/) (Stamm et al, 2015). In Experiment 1, the focus was on quantifying the impact of HNT on oil concentration and the fatty acid composition.…”

Section: Oil Protein Concentration and Fatty Acid Compositionmentioning

confidence: 99%

High night‐time temperature during flowering and pod filling affects flower opening, yield and seed fatty acid composition in canola

Pokharel

Chiluwal

Stamm

et al. 2020

J Agronomy Crop Science

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Winter canola (Brassica napus L.) is highly sensitive to increasing temperatures during the reproductive and pod‐filling stages. Although the impact of high day‐time temperature stress on yield and quality has been documented in canola, similar information under high night‐time temperature (HNT) stress is not available. Using six hybrids and four open‐pollinated cultivars, we observed a marked shift in peak flowering towards earlier, cooler hours of the morning under HNT. Averaged across two independent experiments, the photochemical efficiency of photosystem II was significantly decreased (3%), with a significant increase in thylakoid membrane damage (13%) in the leaves of susceptible cultivars under HNT stress. Similarly, the susceptible cultivars also recorded significant reduction in biomass (34%), pod number (22%), pod weight (37%) and total seed weight (40%) per plant while the same set of agronomic traits were not affected among the tolerant cultivars. Quantitative impact of heat stress was confirmed with increased sensitivity to HNT exposure from gametogenesis until maturity resulting in a significantly higher yield loss compared to stress exposure from post‐flowering till maturity. HNT significantly decreased oil concentration, but increased protein concentration and saturated fatty acid levels in seeds of the susceptible cultivars. However, HNT had no impact on the unsaturated fatty acids in both hybrids and the open‐pollinated cultivars. Breeding targets based on fatty acid composition for enhancing canola seed quality may not be easily amenable due to the inconsistency documented with the compositional changes under heat stress. In summary, our findings conclude that canola hybrids are better suited to regions experiencing heat stress, compared to open‐pollinated cultivars, indicating the possibility of a complete shift to hybrid canola cultivation under predicted hotter climates in the future.

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Section: Oil Protein Concentration and Fatty Acid Compositionmentioning

confidence: 99%

High night‐time temperature during flowering and pod filling affects flower opening, yield and seed fatty acid composition in canola

Pokharel

Chiluwal

Stamm

et al. 2020

J Agronomy Crop Science

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“…However, canola cultivar may determine the yield penalty. Under dual‐purpose use, the grain yield of Wichita, which has more upright growth, decreased relatively more than Griffin, which has prostrate growth (Stamm et al., 2015). Other studies have documented no loss in grain yield in a dual‐purpose canola under irrigated conditions but reduced yield in drier conditions (McCormick, Virgona, & Kirkegaard, 2012).…”

Section: Discussionmentioning

confidence: 99%

“…rapa L.]), and the split‐plot treatments were single‐ (canola for grain) or dual‐purpose canola (grain and forage) management. Main plot was 4.6 by 9 m and sub plot was 2.3 by 9 m. Griffin was identified as a potential dual‐purpose (forage and grain) winter canola cultivar with a prostrate growth habit (Stamm et al., 2015) and Wichita was a standard check winter canola cultivar commonly grown in southern Great Plains.…”

Section: Methodsmentioning

confidence: 99%

“…The experimental design was a randomized complete block design with split-plot arrangement of treatments and four replications. Main plot treatments were a factorial of canola cultivar (Griffin; Stamm et al, 2015;or Wichita;Rife et al, 2001) split-plot treatments were single-(canola for grain) or dualpurpose canola (grain and forage) management. Main plot was 4.6 by 9 m and sub plot was 2.3 by 9 m. Griffin was identified as a potential dual-purpose (forage and grain) winter canola cultivar with a prostrate growth habit (Stamm et al, 2015) and Wichita was a standard check winter canola cultivar commonly grown in southern Great Plains.…”

Section: Methodsmentioning

confidence: 99%

“…The experimental design was a randomized complete block design with split‐plot arrangement of treatments and four replications. Main plot treatments were a factorial of canola cultivar (Griffin; Stamm et al., 2015; or Wichita; Rife et al., 2001) and companion crop treatment (none, spring triticale [ × Triticosecale Wittm. ex A.…”

Section: Methodsmentioning

confidence: 99%

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Canola yield, forage accumulation, and nutritive value in dual‐purpose and companion cropping

et al. 2020

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Winter canola (Brassica napus L.) production has increased in the Great Plains as producers seek a rotational and alternative crop to winter wheat (Triticum aestivum L). However, limited information is available if canola could be used for dual‐purpose without significantly affecting grain yield. The objectives of this study were to (a) investigate dual‐purpose potential and (b) impact of companion crops on growth, survival, biomass, and grain yield of canola. The study was conducted in 2011 and 2012 at Garden City, KS. The experimental design of the study was a randomized complete block design with split‐plot arrangement. Main plot treatments were a factorial of canola cultivars (Griffin or Wichita) and companion crop treatments (none, spring triticale [× Triticosecale Wittm. ex A. Camus], winter triticale, radish [Raphanus raphanistrum subsp. sativus (L.) Domin], and turnip [Brassica rapa var. rapa L.]), and the split‐plot treatments were single‐purpose (grain only) or dual‐purpose (grain and forage) management. Averaged across cultivars and years, grain yield was 70% greater when canola was used for single‐purpose (grain‐only) compared with dual‐purpose. Griffin grain yield tended to be relatively greater than Wichita in dual‐purpose use. Averaged across the two years, turnip as a companion crop decreased canola yield by 38% but resulted in greater forage accumulation. In conclusion, dual‐purpose canola has a grain yield penalty, but effects may vary by cultivar. Companion cropping did not benefit canola and in some cases negatively affected grain yield. When grain production is the primary objective, both companion cropping and forage use should be avoided.

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Registration of ‘KS4719’ winter canola

Stamm

Aiken²,

Angadi

et al. 2021

J of Plant Registrations

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KS4719' (Reg. no. CV-28, PI 697260) is a winter canola cultivar (Brassica napus L.) that possesses superior winterhardiness, greater lodging resistance, and improved pod shattering. KS4719 first drew attention when a devastating cold snap in November 2014 caused much of the winter canola crop to winter kill. KS4719 winter survival scores were 15 and 121% greater than the check cultivars 'Sumner' and 'Wichita', respectively, at Kansas State University's lone surviving trial site in northern Oklahoma. In the National Winter Canola Variety Trial (NWCVT) testing, the winter survival score of KS4719 was equivalent to 'Torrington', the most winter hardy commercially available cultivar. Across two sites of the 2015-2016 Great Plains Canola Variety Trial (GPCVT), KS4719 showed significantly improved pod shatter compared with the check cultivars. Across 14 NWCVT sites in the U.S. Great Plains, grain yield did not differ from the check cultivars; however, KS4719 did yield 5 and 19% more than 'Surefire' and Torrington, respectively, the two most recent cultivar releases from the Kansas State University canola breeding program. Over five siteyears, KS4719 averaged 9% lodging, while Torrington averaged 19%. It is theorized that the improved lodging resistance of KS4719 comes from a stem and root system that is less prone to rotting in saturated soils. Greater winterhardiness is in part due to protection of the lower stem (rosette) throughout the winter months.

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Registration of ‘Griffin’ Winter Canola

Cited by 6 publications

References 6 publications

High night‐time temperature during flowering and pod filling affects flower opening, yield and seed fatty acid composition in canola

High night‐time temperature during flowering and pod filling affects flower opening, yield and seed fatty acid composition in canola

Canola yield, forage accumulation, and nutritive value in dual‐purpose and companion cropping

Registration of ‘KS4719’ winter canola

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