Sucrose, supplied to detached pea (Pisum sativum L. var Alaska) epicotyls through cut bases, supported better growth of apical tissue than supplied glucose and/or fructose. The hexoses were converted mainly to sucrose in basal regions of the epicotyl but some moved as such through the epicotyl and accumulated at the apex (plumule) at a rate faster than sucrose. A greater proportion of the carbo...

Exposure of seedlings of winter rye (Secale cereale L., cv. Puma) for 2 weeks or 24 hours to desiccation stress (40% relative humidity) at room temperature (21 degrees C) in the dark induced degrees of freezing and drought tolerance in the plumules comparable to those produced by cold conditioning for 2 weeks at 3 degrees C. The induction was associated with repression of growth and could not b...

Jasmonic acid (JA) is a naturally occurring growth regulator found in higher plants. Several physiological roles have been described for this compound (or a related compound, methyl jasmonate) during plant development and in response to biotic and abiotic stress. To accurately determine JA levels in plant tissue, we have synthesized JA containing 13C for use as an internal standard with an isot...

Carbonyl sulfide (COS) is a potential new fumigant for stored products, patented worldwide by CSIRO Australia. It may replace methyl bromide for many applications on durable commodities and be used as an alternative to phosphine when there is a significant problem with insect resistance. Laboratory and field studies have shown that COS is effective on a wide range of pests at all life stages, a...

Deep-sowing is an effective measure to ensure seeds absorbing water from deep soil layer and emerging normally in arid and semiarid regions. However, existing varieties demonstrate poor germination ability in deep soil layer and some key quantitative trait loci (QTL) or genes related to deep-sowing germination ability remain to be identified and analyzed. In this study, a high-resolution geneti...

Control of seed germination and dormancy is important in plant adaptation evolution. When studying Quercus species, we observed a substantially delayed shoot emergence following fast root chungii F.P.Metcalf. Since epicotyl physiological (PD) has not been reported section Cyclobalanopsis, examined morphology Q. aimed to document PD the seeds. The embryo was fully developed fresh ripe elongating...

Metal nanoparticles have many positive effects in improving crop production and productivity allow for increased germination rapid establishment under field conditions. The metallic applied this study were copper oxide (CuONPs) biosynthesized using orange peel (Citrus X sinensis) as a reducing agent to avoid or reduce toxicity wheat seeds sprouts. This determined the effect of CuONPs on germina...

The main problem of upland rice cultivation is the presence weeds, which cause a decrease in quantity and quality crop yields. Generally, farmers use synthetic herbicides to control weeds. One way reduce by using kiambang extract bioherbicides are applied Currently, there no research determine effect on germination. purpose this study was assess bioherbicide germination phase giving several con...