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首页> 外文期刊>new zealand journal of agricultural research >Determination of tiller and root appearance in perennial ryegrass (Lolium perenne) swards by observation of the tiller axis, and potential application in mechanistic modelling
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Determination of tiller and root appearance in perennial ryegrass (Lolium perenne) swards by observation of the tiller axis, and potential application in mechanistic modelling

机译：Determination of tiller and root appearance in perennial ryegrass (Lolium perenne) swards by observation of the tiller axis, and potential application in mechanistic modelling

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摘要

Recording of bud status at successive phytomers on the tiller axis in perennial ryegrass was shown to provide information similar to that obtained from conventional recording of tiller appearance by monitoring marked tillers. The technique can be extended to monitor the number of roots formed. These observations lead to the establishment of a notation which describes tiller and root appearance, respectively, on the basis of probability or frequency per phytomer. These statistics are analogous to but less ambiguous in their interpretation than site filling statistics currently used to define tiller, and sometimes root, appearance. Potential modelling applications of quantifying sward dynamics at the phytomer level are discussed. In particular, nodal frequency statistics allow development of mass flow equations to describe leaf, tiller, and root production, and seasonal variation in allocation of photosynthate to developing tillers and roots.

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