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首页> 外文期刊>日本作物學會紀事 >Studies on Growth of Leaves of Paddy Rice Plant. : I. The Growth of the Leaf-blade and Leaf-Sheath.
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Studies on Growth of Leaves of Paddy Rice Plant. : I. The Growth of the Leaf-blade and Leaf-Sheath.

机译：水稻植物叶片生长研究。 ：I.叶片和叶子鞘的生长。

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In order to make clear the peculiarity of growth habit of rice plant in warmer regions, and to obtain fundamental data of clinical diagnosis based on its external characteristics, the present investigation concerning with growing process of leaves according to the leaf order was carried out. The results obtained are summarized as follows: 1. Elongation process of the leaves (blades and sheaths) according to their leaf orders were shown in Fig. 1 (in nursery bed period) and Fig. 2 (in transplanted field period). 2. Elongation periods of the leaves are shown in Fig. 3. These periods increased in length gradually according to the leaf order from the 1st blade to the 7th blade, where the firstpeak occured, and then decreased sucessively until the 10th blade which showed the minimum length of period. In higher odered leaves than the 11th blade, these periods were increased again gradually. Elongation period of each leaf sheaths coincides almost with that of the next higher ordered leaf blades. 3. Leaf period of each leab showed a tendency to increase gradually from the lower to the higher. The difference in the life duration between the 1st and the 9th leaves was not so great, but those among the upper order leaves beyond the 12th were of some significance.(Fig. 3) 4. Blade-weight per leaf changed regularly according to the leaf order as shown in Fig. 4 (A). The weight increased regularly according to the elongation of blade, and the maximum weight was reached shortly after the completion of elongation. The decrease of the blade weight from the maximum was not so large as that of sheath. 5. sheath-weight per leaf changed in the similar way as that of the blade as shown in Fig. 4 (B). The difference of weight between the sheath and the blade according to the growing stage seemed to show heavy decrease after the maximum weight was attained, and this tendency was especially remarkable in sheaths of 12∼15th leaves. This decrease of weight correlated closely with starch translocation in sheath. 6. Between the two groups of the leaf, i. e. a lower group of 1∼11th leaves and the upper one of 12∼16th, the authors found a distinct difference in the sheath blade weight ratio. It might be related to the growth phase transition from the vegetative to the reproductive stage of the plant. 7. Developmental changes of leaf number and weight per plant were shown in Flg. 5. the number of green leafblades was largest at the developing stage of young ear, but their weight was heaviest at the time immediately before heading. The number and weight of green leaf sheaths were largest at the same time as the former.
机译：为了清楚地清楚地区植物生长习性的特殊性，并根据其外部特征获得临床诊断的基本数据，进行了根据叶命令的叶片生长过程的本研究。所获得的结果总结如下：1。图1中所示的叶片（叶片和护套）的伸长过程如图1所示。在图1（在托儿所床时段）和图1中。2（在移植的场周期中）。 2.叶子的伸长周期如图3所示。这些时段根据从第一叶片到第7叶片的叶子顺序逐渐增加，其中第7刀片发生，然后成功降低，直到第10叶片显示出来最小长度。在比第11刀片更高的臭虫叶中，这些时期再次逐渐增加。每个叶子护套的伸长周期几乎与下一个更高的叶片叶片的伸长期相一致。 3.每个刀具的叶片显示出从较低到较高的逐渐增加的趋势。第一个和第9叶之间的寿命持续时间的差异并不是那么大，但是上订单之后的那些在12日之后的叶子中的一些具有重要意义。（图3）4。根据的，每叶的刀片重量定期改变如图4（a）所示的叶命令。根据叶片的伸长率，重量定期增加，并且在完成伸长后不久就达到最大重量。从最大值的叶片重量的减少并不像鞘一样大。每个叶子的鞘重量以与刀片类似的方式改变，如图4所示。4（b）。根据生长阶段的护套和叶片之间的重量差异似乎在获得最大重量后显着降低，并且这种趋势在12〜15th叶子的鞘中特别显着。这种重量的减少与护套中的淀粉易位密切相关。 6.在两组叶子之间，一世。 e。作者发现了较低的1〜11th叶子和12〜16th中的上部，发现了鞘叶片重量比的明显差异。它可能与从植物生殖阶段的生长阶段的生长阶段转变有关。 7.在FLG中显示了每株叶片数和重量的发育变化。 5.年轻耳朵的发展阶段，绿叶的数量是最大的，但在前进前的时间，他们的体重最大。绿叶护套的数量和重量与前者同时最大。

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