Using horizontal and vertical axis clinostats and sand-grown oat seedlings (Avena sativa), it was found that horizontal clinostat rotation at 2 rpm increased respiration and inorganic and organic phosphorus content of seedlings. Increased coleoptile geotropism and root growth are attributed to rotational nullification of the directional component of the gravitational stimulus. These growth modi...

including a-cellulose. It is concluded that the direct effect of auxin is probably on metabolism of matrix polysacchlar,ides and that the promotion of a-cellulose synthesis is induced by elongation. Fractionation of coleoptile tissue after 1-hour treatment with auxin does not show differences in incorporation as large as are observed after several hours of treatment. However, the data also demo...

The cold tolerance studies were carried out in a bi-parental F2 population of cross between tolerant and susceptible parents (SKUA-529 HEERA, respectively). purpose was to screen the individuals for primary cold-tolerance-related attributes. information generated has direct application use identifying quantitative trait loci (QTLs) further can be used genotyping with an appropriate marker syste...

Cover crop use in organic rice cropping systems efficiently manages the two most limiting factors agriculture - weed competition and nutrient availability. Nonetheless, cover biomasses on soil surfaces under anaerobic conditions flooded produce acids (mainly acetic acid) that cause early phytotoxicity to seedling coleoptile roots. This study evaluated dose-response of acid germination rates pos...