摘要
用^(14)CO_2在晋谷14的拔节,抽穗开花两个生育期,分别进行两次标记,分五次取样测定光合产物运转分配与再分配的结果表明:拔节期的光合产物主要积累在新生茎节,叶片及根系,对籽粒的贡献很小。抽穗开花期叶片的光合产物,穗码和籽粒的积累量为26.63％,到成熟时已增至32.09％,说明此期的叶片对籽粒具有重大贡献。
Jin Gu 14 was labcled twice by use of CO_2 on jointing heading stage and florescence and sampled 5 Times to deterinine the distribution and re—distribution of photo—products. The results indicated that the photo—products on iointing stage were accumulated mainlyn in mewly formed stems, lcaves.and roots, with only small contribution to seeds. On heading stage and florescense, photo—products of leaves accumulated in small cars and seeds to the amount of 26.63％(increased to 32.09％ on mature stage), So. It was clcar that Jeaves, on this stage, madegreat Contributions to the seeds.
关键词
谷子
生育期
mill, distribution
