Investigations on yield in the cereals. I
Investigations on yield in the cereals. I
复制标题
对谷物产量的调查。
DOI：
10.1017/s0021859600003129
复制
发表时间：
1924
期刊：
影响因子：
--
通讯作者：
S. Wadham
中科院分区：
文献类型：
--
作者：
F. Engledow;S. Wadham
关于分蘖调查的形式，在附录III中作了详细讨论。本质上，目的是比较纯系P和A，并探索精确测定分蘖的可能性。由于附录中所讨论的原因，采取了特殊的步骤，以确保观察植物种群，这些植物具有尽可能大的均匀条件。种子的选择和播种已在上文§ I中描述。为了促进进一步的均匀性，从观察中排除以下类别的植物：（i）末端行的所有植物;（ii）所有行的末端植物;（iii）在26天不发芽的植物。三.或27。三.（这些天构成整个种群的"模式" 2天发芽期）;（iv）植物受到线虫或任何其他此类媒介的明显损害;（v）植物行中的紧邻植物已经死亡。
Considerations which are dealt with at length in Appendix III governed the form of the investigation upon tillering. In essence, the intention was to compare the pure lines P and A and to explore the possibilities of making accurate determinations of tillering. For reasons discussed in the Appendix, special steps were taken to secure for observation a population of plants which had had as great a uniformity of conditions as was attainable. The selection and sowing of the seed have been described in § I above. To promote further uniformity, plants of the following categories were excluded from observation: (i) all the plants of end rows; (ii) the end plants of all rows; (iii) plants which did not germinate on 26. iii. or 27. iii. (these days constituted the “modal” 2-day period of germination for the whole population); (iv) plants damaged to a noticeable degree by wire-worm or any other such agency; (v) plants whose immediate neighbour(s) in the row had died.