Registration of ‘Lightning’ barley

Abstract

Lightning' (Reg. no. CV-374, PI 698654), experimental designation DH130910, is a two-row facultative barley (Hordeum vulgare L.) released by Oregon Agricultural Experiment Station in 2020. It was bred for fall planting and is well adapted to the U.S. Pacific Northwest and New York State. Because it does not require vernalization for a timely vegetative to reproductive transition, Lightning can be planted in the spring and will flower and mature in a similar time frame as spring growth habit cultivars. Lightning is a doubled haploid produced via anther culture and was advanced through fall-planted trials from 2013 to 2019. Facultative growth habit was validated in unreplicated trials in multiple years; replicated yield trial data are available for 2020. Lightning was developed with the goal of commercial production as a malting cultivar. It was tested in the American Malting Barley Association (AMBA) PilotProgram, but it is not on the AMBA recommended list, due to unsatisfactory quality when malted using standard protocols. Because Lightning will produce excellent malt with adjustments to malting protocol, it was released as a cultivar based on its potential for malting and based on its yield and test weight advantage over check cultivars 'Endeavor' and 'Wintmalt'. Furthermore, it has broad-spectrum disease resistance (moderate to high resistance to scald, stripe rust, powdery mildew, net blotch, and Fusarium head blight). INTRODUCTION'Lightning' (Reg. no. CV-374, PI 698654) is a two-row facultative malting barley (Hordeum vulgare L.) cultivar that was released by the Oregon Agricultural Experiment Station in 2020. Facultative growth habit is defined, in this context, as the capacity to acclimate and achieve levels of winterhardiness comparable to winter growth habit checks coupled with a lack of vernalization sensitivity. The latter attribute means that under spring-planted conditions the cultivar will achieve

Barley grain protein is influenced by genotype, environment, and nitrogen management and is the major driver of malting quality

“…Overall, across the lines studied, the highest yields were observed in Corvallis (with the exception of Thunder), where seasonal water input was higher and drought stress potential, represented by δ 13 C, was lower than at the other two locations (Table 1). Thunder may not be best suited for a high‐rainfall location like Corvallis (Hayes et al., 2019), where it should be noted that stripe rust and scald are prevalent (Hayes et al., 2021). However, Thunder was generally high yielding in drier locations.…”

“…Although it is important to take the real impacts of disease pressure into consideration, a complete characterization of abiotic and biotic stresses, particularly related to climate change, would require multiple years of data and is beyond the scope of this study. In contrast to Thunder, the other released variety, Lightning, was high yielding in Corvallis, likely due to broad‐spectrum disease resistance (Hayes et al., 2021). However, Lightning is not widely utilized in industry due to water sensitivity and dormancy issues, which pose logistical impediments to large‐scale commercial maltsters due to losses in efficiency stemming from changes in malting schedule and storage required for grain still emerging from dormancy.…”

“…However, Lightning is not widely utilized in industry due to water sensitivity and dormancy issues, which pose logistical impediments to large‐scale commercial maltsters due to losses in efficiency stemming from changes in malting schedule and storage required for grain still emerging from dormancy. That said, on the smaller scale, craft maltsters may have greater flexibility to adapt malting protocols and scheduling for water sensitivity and dormancy, giving them the potential ability to produce malt meeting quality specifications from Lightning (Hayes et al., 2021).…”

Genome‐wide marker effect heterogeneity is associated with a large effect dormancy locus in winter malting barley

“…Four bi‐parental half‐sibling populations were created as part of a winter malting barley breeding program at Cornell University (called “DH”). The DH population was created by crossing ‘Lightning’ (Hayes et al., 2021) to four modern malting barley cultivars: ‘Wintmalt’, ‘Flavia’, ‘SY Typee’, and ‘KWS Scala’. Doubled haploids were developed at Oregon State University according to Cistué et al.…”

“…Four bi-parental half-sibling populations were created as part of a winter malting barley breeding program at Cornell University (called "DH"). The DH population was created by crossing 'Lightning' (Hayes et al, 2021)…”