Chan Halbrendt, Jacqueline

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    Here comes the Sunn: A comprehensive analysis of the cover crop sunn hemp (𝘊𝘳𝘰𝘵𝘢𝘭𝘢𝘳𝘪𝘢 𝘫𝘶𝘯𝘤𝘦𝘢 L.) and its potential for seed production and weed control in Puerto Rican agricultural systems
    (2010) Chan Halbrendt, Jacqueline; Morales Payán, José P.; College of Agricultural Sciences; Brunner, Bryan; Martínez Garrastazú, Sonia; Department of Agro-Environmental Sciences; Barragan, Mario J.
    The cover crop 𝘊𝘳𝘰𝘵𝘢𝘭𝘢𝘳𝘪𝘢 𝘫𝘶𝘯𝘤𝘦𝘢 L. has been recognized for its high biomass production, nitrogen-fixation, and allelopathic properties. However, extensive studies have not been conducted to assess the behavior of different 𝘊. 𝘫𝘶𝘯𝘤𝘦𝘢 accessions in Puerto Rico. Studies were conducted from 2008-2009 to analyze the production and response to changes in photoperiod of 16 𝘊. 𝘫𝘶𝘯𝘤𝘦𝘢 accessions, as well as 𝘊. 𝘫𝘶𝘯𝘤𝘦𝘢 performance under different planting densities (10, 25 and 40 lb/ac) and apical treatments (no cutting, cutting at 3, 4, and 5 weeks after planting) with respect to their potential for production of biomass, seed, and weed suppression. Results showed that despite photoperiod changes, the accessions ‘Nigeria’, ‘Texas 374’ and ‘T’ai-yang-ma’ have potential for biomass and/or seed production in Puerto Rico. Additionally, the highest biomass and seed yields were obtained with a planting density of 25 lb/ac, and apical cuttings did not improve 𝘊. 𝘫𝘶𝘯𝘤𝘦𝘢 yields or weed suppression.