A decimal code for the growth stages of cereals
A decimal code for the growth stages of cereals
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J.;T. T.-T.
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作者：
J.;T. T.-T.
显然需要有一个国际上可接受的记录谷物生长阶段的尺度。这样一个尺度应该为农学家、植物育种家、植物病理学家、植物生理学家、分类学家和所有其他与记录作物生长细节有关的人所接受。由Zadoks、Chang和Konzak开发的十进制代码被广泛认为是最好的尺度。由有关学科的专家组成的委员会详细审议了该计划，他们提出了一些建议，这些建议已被纳入Eucarpia（欧洲植物育种研究协会）以油印形式出版的计划中，现在在这里出版。它也希望能在美国的《小麦、燕麦和大麦通讯》上发表。本守则的使用者应了解，本守则通篇指的是个别植物，或在适当情况下指的是这些植物的主枝，所述的生长阶段并不相互排斥。例如，一株植物可以用主枝上展开的叶数或茎的伸长来描述。与此同时，分蘖数的发展更可能是描述种植间距或农艺处理比发育阶段。计划扩大该守则的范围，首先包括玉米和高粱，随后包括牧草和双子叶作物，并将在其他地方出版附有插图的完整版本。我们非常希望最后文本不会与在此公布的文本有很大不同，但欢迎提出任何小的修正或措辞上的修改建议。
An internationally acceptable scale for recording the growth stages of cereals is clearly desirable. Such a scale should be acceptable to agronomists, plant breeders, plant pathologists, plant physiologists, taxonomists and all others concerned with recording details of crop growth. The decimal code developed by Zadoks, Chang and Konzak has been widely recognized as the best scale available. It was considered in detail by a committee comprising experts in the disciplmes concerned, who made a number of proposals which have been incorporated in the scheme which has been published in mimeographed form by Eucarpia (The European Association for Research in Plant Breeding) and is now published here. It is also hoped that it will be published in America in the Wheat, Oat and Barley Newsletters. Users of the code should appreciate that it refers throughout to individual plants, or, where appropriate, to the main shoots of such plants, and that the growth stages described are not mutually exclusive. A plant may, for example, be equally well described in terms of the number of leaves unfolded on its main shoot or in terms of stem elongation. At the same time the number of tillers developed is more likely to be descriptive of plant spacing or agronomic treatment than of developmental stage. An extension of the code is planned to cover, in the first instance, maize and sorghum, and, subsequently, forage grasses and dicotyledonous crops, and a full version, with illustrations, will be published elsewhere. It is very much hoped that the final version will not differ significantly from that published here, but any suggestion for minor amendments or for changes in phraseology would be welcomed.