Chilling stress affects grain characteristics, starch structural and physicochemical properties. Abstract This study investigates the effect of chilling stress, over a period of three days after anthesis, on the physicochemical properties of starches derived from six rice cultivars. Chilling stress significantly affected the grain characteristics and physicochemical properties of rice starches, except for those of two varieties, NJ and ZD
The validity of the technique was assessed in comparison to the N budget calculation method on five winter wheat cultivars grown for 2 years at low and high fertilization input.
We estimated that on average Among the five genotypes, significant differences were also found for both N remobilisation efficiency from In parallel, during 1 year, we monitored physiological markers representative of N assimilation and recycling at two sampling dates during the grain filling period.
We then examined if there was any relationship between these physiological markers, N absorption and remobilisation estimates and agronomic traits related to yield and grain N content. Nitrate reductase NR activity was highly correlated to N absorbed post-flowering and to grain protein content.
Glutamine synthetase GS activity was even more highly correlated than NR activity to the amount of N remobilised and grain yield. The use of physiological traits such as NR and GS activities as markers of the wheat N status is discussed.
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Heat stress after anthesis can affect the number of grains in a spike only to a limited extent and reduces the grain filling in particular, resulting in lower GW (Dias and Lidon, ). However, the length of exposure to high temperatures may also be critical for grain filling.
Foliar applications just after anthesis will likely be the most effective and should not impact grain yield, test weight, or kernel weight despite the potential to cause substantial leaf burning.
The likelihood of an economic return from this N management strategy can be estimated with the decision guide in Figure 5. This is Volume 1 of Oregon State University's Landscape Plants web site. Landscape plants (mostly woody, i.e., shrubs and trees) in this volume are listed in alphabetical order by genus, from A (Abelia) through E (Exochorda).From the list below select a letter which corresponds to the first letter of the genus you wish to view or, if listed, the genus itself (or search the Common Name List).
Detailed Scientific Description Solitary or rarely clustered palm tree. Stem up to 10 m tall and cm in Diameter Breast High.
Crown with erect to semi-drooping leaves; leaf sheath up to cm long, and disintegrating into a light to dark brown fibrous mesh that eventually detaches from the leaf. Grape Berry Growth and Development niCk k.
dokoozLian Figure A typical ‘Thompson Seedless’ flower cluster prior to anthesis ). Each of the five stamens, the male, pollen-bear- so no seed can develop after anthesis. The lack of nor-mal ovule development is the result of defective embryo sac formation. An example of a.