首页|Biomass yield and quality of perennial herbaceous crops in a double harvest in a continental environment
Biomass yield and quality of perennial herbaceous crops in a double harvest in a continental environment
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NSTL
Elsevier
? 2022 Elsevier B.V.Perennial herbaceous crops (PHC) diversity requires the proper selection of genotypes with high biomass production. These crops can be harvested at different stages of the vegetation period. The objective of the study was to determine the yield and biomass quality of seven PHC genotypes, including three dicotyledon plants (Helianthus tuberosus L., Helianthus salicifolius A. Dietr, Silphium perfoliatum L.) and four monocot plants (Miscanthus × giganteus J.M. Greef & M. Deuter, M. sinensis ((Thunb.) Andersson), M. sacchariflorus ((Maxim.) Hack.), Spartina pectinata Bosc ex Link) during double harvest (June and October) in three vegetation periods. The highest yield in the first harvest (June) was obtained from S. perfoliatum (7.7 Mg ha?1 y?1 d.m.). However, in the second harvest (October), the yield of this genotype was not so high, and the total yield from two harvests (June + October) was 11.6 Mg ha?1 y?1 d.m. The highest yield from two harvests was obtained from S. pectinata (13.5 Mg ha?1 y?1 d.m.). The yields of PHC harvested twice in one growing period, obtained in the third year of the study, were lower compared with the yields obtained in the first and second years. It was shown that the moisture and nitrogen contents in biomass obtained in the first harvest were higher in all genotypes compared with the second harvest. It was also found that dicotyledon plants contained more ash and lignin than grasses. However, the grasses had higher contents of cellulose and hemicelluloses. The above information is important to customers and end-users of PHC.
NSTL
Elsevier
