四川农业大学学报 ›› 1989, Vol. 7 ›› Issue (03): 142-145.doi: 10.16036/j.issn.1000-2650.1989.03.002

• • 上一篇    下一篇

水稻不同节位叶的光合强度和光合产物的运转与分配

王化新, 李实蕡, 陈翼伯, 任光璪, 张仲良   

  1. 四川农业大学
  • 收稿日期:1989-03-20 出版日期:1989-09-30 发布日期:2017-04-22

THE INTENSITY OF PHOTOSYNTHESIS AND THE TRANSPORTATION AND DISTRIBUTION OF THE PHOTOSYNTHETIC PRODUCT IN THE DIFFERENT NODE LEAVES OF RICE HEADINC STACE

Wang Huaxin, et al   

  1. Sichuan Agricultural University, Yaan, Sichuan, China
  • Received:1989-03-20 Online:1989-09-30 Published:2017-04-22

摘要: 本研究以水稻品种蜀丰一号为材料,在抽穗期用红外线CO2气体分析仪测定主茎各节位叶的净光合速率和用14C研究光合产物的运转与分配。研究表明:主茎各节位叶的净光合速率分别为15.97,12.85,11.07,11.37mg CO2·小时-1·分米-2。经统计检验,剑叶与倒二叶、倒三叶,倒四叶差异均达显著和极显著水准,倒二叶,倒三叶,倒四叶之间差异不显著。主茎不同节位叶同化的14C都能运转分配至稻株的各器官,其分配的比率不相同,分配到主穗的比率较高,分蘖穗的比率较少。主茎下位叶(倒三、倒四叶)同化的14C分配到分蘖穗、茎叶和根的比率比上位叶(剑叶、倒二叶)高。

关键词: 水稻, 分配, 示踪法

Abstract: The intensity of photosynthesis and the assimilative distribution of 14C in the different node leaves (the flag, 2nd, 3rd and 4th leaves) of the rice heading stage were studied with a type variety-Shufong NO.1. The results indicated that the speeds of photosynthesis in the node leaves of main stem were 15.97, 12.85, 12.07, 11.37 mg CO2·h-1·dm2 respectively, 14C was assimilated in the different, node leaves and distributed to all organum of rice. The distribution ratio of 14C from different node leaves wes higher in the main stem than that in tellers. The 14C from the 3rd and 4th leaves was distributed to the tellers, stems, leaves and roots more than that from the flag and 2nd leaves.

Key words: LOWLAND RICE, DISTRIBUTION ALLOTMENT, TRACEMETHODS