THE EFFECT OF DPC (N,N-DIMETHYL PIPERIDINIUM CHLORIDE) ON THE (CO2)-C-14-ASSIMILATION AND PARTITIONING OF C-14 ASSIMILATES WITHIN THE COTTON PLANTS INTERPLANTED IN A WHEAT STAND
Zl. Wang et al., THE EFFECT OF DPC (N,N-DIMETHYL PIPERIDINIUM CHLORIDE) ON THE (CO2)-C-14-ASSIMILATION AND PARTITIONING OF C-14 ASSIMILATES WITHIN THE COTTON PLANTS INTERPLANTED IN A WHEAT STAND, Photosynthetica, 31(2), 1995, pp. 197-202
DPC played an important role in regulating the production, translocati
on and partitioning of C-14-assimilates in cotton (Gossypium hirsutum
L.) plants. Seed soaking with DPC increased the partitioning of cotton
assimilates into roots and main stem, and decreased the partitioning
into seedling tip which was beneficial for the seedling. After the app
earance of a square, spraying with DPC decreased the partitioning of a
ssimilates into the main stem, branches and their growing points, and
increased the partitioning into reproductive organs and roots. This he
lped to avoid or reduce spindling, ensured a steady growth, coordinati
on of the relation between vegetative and reproductive organs, and imp
roved the development of floral buds. From bloom to boll-setting, spra
yings with DPC greatly increased the partitioning of assimilates into
reproductive organs and decreased the partioning into vegetative organ
s, which was useful for the growth and development of squares and bell
s.