Kernel-to-kernel moisture content (MC) distributions on panicles were measured for rice cultivars Bengal, Cypress, and Drew. Rice panicles in Arkansas were harvested at different stages of maturity from foundation seed fields at two locations with widely varying soils during the autumns of 1998, 1999, and 2000. The objective was to quantify variability of individual rice kernel MCs as affected ...

Patatin-related phospholipase A (pPLA) hydrolyses glycerolipids to produce fatty acids and lysoglycerolipids. The Oryza sativa genome has 21 putative pPLAs that are grouped into five subfamilies. Overexpression of OspPLAIIIα resulted in a dwarf phenotype with decreased length of rice stems, roots, leaves, seeds, panicles, and seeds, whereas OspPLAIIIα-knockout plants had longer panicles and see...

Silicon (Si) is the most abundant minerals in soil and exerts beneficial effects on plant growth by alleviating various stresses. The transport of Si from soil to the panicles is mediated by different transporters. Lsi1, belonging to a NIP group of the aquaporin family, is responsible for the uptake of Si from soil into the root cells in both dicots and monocots although its expression patterns...

Several recent works have shown that the onedimensional fully asymmetric exclusion model, which describes a ystem of panicles hopping in a preferred direction with hard core interactions, can be solved exactb in the case of open boundaries. Here we present a new approach based on representing the weights of each mnfiguration in the steady state as a product of noncommuting matrices. Wth this ap...

-Cylindrical traps with an aspect ratio of 5.2 were tilted from 0 ° to 70 ° upstream and downstream in the Hudson River with currents ranging between 2 and 62 cm s -~. Particle flux in the tilted traps increased with tilt up to about 45 ° where overcollection reached a maximum factor of three but decreased beyond 45 ° when traps were tilted downstream. There was no discernible velocity effect o...

A new species, Ptilagrostis contracta, endemic to Qinghai-Tibet Plateau is described and illustrated. It is distinguished from other species in Ptilagrostis by having contracted panicles, 1-geniculate awns with hairy columns and scabrous bristles and evenly pubescent lemmas. Evidence from lemma epidermal pattern, cytology and molecular phylogenetic analyses based on the nuclear ITS sequence dat...

Abstract The architecture of rice plant represents important and complex agronomic traits, such as panicles morphology, which directly influence the microclimate population consequently grain yield. To enhance yield, modification to create new hybrid cultivars is considered a sustainable approach. current study includes an investigation yield response index under low high density two indica R49...