Abstract
The effects of plant density on yield and related traits were studied in ten cultivars of spring barley, Hordeum vulgare L., to determine if selection in low density stands is effective in improving expression in dense stands. Five plant densities (1.6, 6.2, 25, 100, and 400 plants/m2) were evaluated in each of 3 years.Spikes/plant, shoot weight and grain yield were the only characteristics that had significant cultivar × density interactions. All three characteristics increased asymptotically as density decreased and did not show significant changes in cultivar rank.Interplant variability, although minimum at a density of 100 plants/m2 for spikes/plant, shoot weight and grain yield, showed a significant decrease at a density of 6.2 plants/m2 (40 × 40 cm) for all traits. Our results show that single plant selection may be most effective at plant spacings near 40 × 40 cm and that selection under low densities should be effective in improving dense seeding expression of yield and several related traits.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
