Shift of the major sink from the culm to the panicle at the early stage of grain filling in rice (oryza sativa l. cv. sasanishiki)

Shigenori Okawa, Amane Makino, Tadahiko Mae

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)

Abstract

To elucidate the precise process of distribution and redistribution of carbon assimilated at the early stage of ripening in rice plants, 13CO2 was fed to the plants at the late booting, flowering, and beginning of milky stages in a phytotron under a constant environment, and the distribution and redistribution of the labeled carbon into the constituent organs were traced until the doughy stage. The most remarkable change in the carbon distribution and redistribution was observed at the beginning of the milky stage (around 10 d after heading). At this stage, the major sink changed from the calm to the panicle, and the culm became an exporter of accumulated carbon, while the leaf sheath continued to act as a carbon exporter from heading through early ripening.

Original languageEnglish
Pages (from-to)237-242
Number of pages6
JournalSoil Science and Plant Nutrition
Volume48
Issue number2
DOIs
Publication statusPublished - 2002 Apr

Keywords

  • Carbon assimilates
  • Distribution
  • Grain-filling
  • Redistribution
  • Rice

ASJC Scopus subject areas

  • Soil Science
  • Plant Science

Fingerprint Dive into the research topics of 'Shift of the major sink from the culm to the panicle at the early stage of grain filling in rice (oryza sativa l. cv. sasanishiki)'. Together they form a unique fingerprint.

Cite this