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Browsing Gwyddorau Biolegol, Amgylcheddol a Gwledig / Biological, Environmental & Rural Sciences by Author

Browsing Gwyddorau Biolegol, Amgylcheddol a Gwledig / Biological, Environmental & Rural Sciences by Author "Raistrick, Neil"

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Differences in growth and nitrogen productivity between a stay-green genotype and a wild-type of Lolium perenne under limiting relative addition rates of nitrate supply

Macduff, James H.; Humphreys, Mervyn O.; Raistrick, Neil (2002-09-05)

The stay-green mutation of the nuclear gene sid inhibits chlorophyll degradation during leaf senescence in grasses. Decreased productivity is expected under conditions of limited external N availability, due to the higher ...
Low nitrate uptake white clover genotype - Nitrogen relations of a low nitrate uptake inbred line of white clover (Trifolium repens L.)

Raistrick, Neil; Michaelson-Yeates, Terry P. T.; Abberton, Michael T.; Macduff, James H. (2002)

The nitrogen relations of an inbred line of white clover (Trifolium repens L.) thought to exhibit an abnormally low capacity for NO3 – uptake (line LNU) were compared with a line regarded as normal with respect to NO3 – ...
A simple model of feed-back regulation for nitrate uptake and N2 fixation in contrasting phenotypes of white clover

Michaelson-Yeates, Terry P. T.; Raistrick, Neil; Macduff, James H.; Soussana, Jean-Francoise; Abberton, Michael T.; Minchin, Frank R. (2002)

A simple three equation model is proposed for the feedback regulation of nitrate uptake and N2 fixation, based on the concentration of the organic N substrate pool within the plant and two parameters denoting the N substrate ...

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