ArticleBMC plant biology2026
Analysis of genetic diversity for biomass production and related traits unveils possible morphophysiological mechanisms underlying forage productivity in Leptochloa crinita.
Article in BMC plant biology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
backgroundLeptochloa crinita is a native forage grass from arid and semi-arid regions of the Americas, typically used for range grazing. Forage biomass productivity (FBP) and drought tolerance are important traits exhibiting broad intraspecific variation. To investigate possible morphophysiological mechanisms underlying FBP, we monitored biomass production, both total and partitioned into different above-ground and underground plant parts, total (LA) and specific leaf area (SLA), stomatal conductance (g
resultsBroad and significant variation (p < 0.0001) was consistently found among the accessions for total dry matter (TDM), roots dry matter (RDM), dry matter of leaves (LDM), stems (SDM), and panicles (PDM), dry matter of all the aerial plant parts combined (ADM). LA, SLA, g
conclusionsThis work revealed broad genetic diversity for FBP in L. crinita under non-limiting water availability conditions, and identified high-yielding accessions, of relevance for forage production in irrigated arid regions. Mechanistically, high FBP was associated with increased photoassimilates partitioning to above-ground organs, a greater and faster LA development, and an active photosynthetic apparatus for longer periods. The FBP-correlated traits identified herein will be of selection value for L. crinita breeding programs.
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