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This study was to test the hypothesis that polyamines (PAs) and ethylene and their interactions may be involved in mediating the post-anthesis development of spikelets in rice (Oryza sativa L.). Six rice cultivars differing in grain filling rate were field-grown, and the changing patterns of PAs and ethylene levels in rice spikelets during the filling and(More)
In wheat stems, the levels of fructan-dominated water-soluble carbohydrates (WSC) do not always correlate well with grain yield. Field drought experiments were carried out to further explain this lack of correlation. Wheat (Triticum aestivum) varieties, Westonia, Kauz and c. 20 genetically diverse double haploid (DH) lines derived from them were(More)
Abscisic acid mediates the effect of post-anthesis soil drying on grain filling through regulating the activities of key enzymes and expressions of genes involved in sucrose-to-starch conversion in rice spikelets. This study investigated if abscisic acid (ABA) would mediate the effect of post-anthesis soil drying on grain filling through regulating the key(More)
This study tested the hypothesis that the interaction between polyamines and ethylene may mediate the effects of soil drying on grain filling of rice (Oryza sativa L.). Two rice cultivars were pot grown. Three treatments, well-watered, moderate soil drying (MD), and severe soil drying (SD), were imposed from 8 d post-anthesis until maturity. The endosperm(More)
The major vernalisation genes of VRN1 are well understood at the molecular level. However, their quantitative contributions to flowering time and grain yield related traits are not clear. In this study, we used a double haploid population (225 lines) of Westonia × Kauz in which the Vrn-A1a (Westonia), Vrn-B1a (Westonia) and Vrn-D1a (Kauz) were segregating,(More)
This study investigated the possibility that abscisic acid (ABA) may mediate the effect of post-anthesis soil drying on carbon remobilization from the stem and grain filling through regulating fructan hydrolysis and starch biosynthesis in wheat (Triticum aestivum L.). Two wheat cultivars showing difference in plant height were pot-grown. Three treatments,(More)
Colin Webb, Apostolis A. Koutinas, Chenyu Du, Ruohang Wang, Yunji Xu, Sze Ki Carol Lin, Rafael Luque, James H Clark School of Chemical Engineering and Analytical Science, The University of Manchester, Satake Centre for Grain Process Engineering, PO Box 88, Sackville St, Manchester, M60 1QD, United Kingdom Chemistry Department, Green Chemistry Centre of(More)
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