Seasonal dynamics of non-structural carbohydrates in new twigs and old branches of Vitex negundo Var. heterophylla under three densities of Robinia pseudoacacia forests.

ABSTRACT: Non-structural carbohydrates (NSCs) are vital for plant growth, with their levels influenced by light intensity and seasonal changes. However, research on how varying light conditions due to forest density and seasons affect carbon allocation in new twigs and old branches is scarce. Vitex negundo var. heterophylla is a leading shrub species in the warm temperate zone's shrub layer. In this study, we conducted a detailed sampling of V. negundo var. heterophylla branches, differentiating new twigs and old branches across phenological stages under three densities of Robinia pseudoacacia forests. Our sampling schedule was as follows: March (dormant period), May (sprouting period), July (leaf spreading period), September (flowering and fruiting period), and December (deciduous period). The resu

SUBMITTER: Wang N 

PROVIDER: S-EPMC11983941 | biostudies-literature | 2025 Apr

REPOSITORIES: biostudies-literature