Effects of Red- and Far-red-rich Spectral Treatments and Diurnal Temperature Alternation on the Growth and Development o Petunia.

DOI NDL Digital Collections JASI Web Site Web Site 4 Citations 18 References

Bibliographic Information

Other Title
  • ペチュニアの形態変化に及ぼす赤色光/遠赤色光比と DIF の影響
  • Effects of red- and far-red-rich spectral treatments and diurnal temperature alternation on the growth and development of Petunia

Search this article

Abstract

The effects of Red-and Far-red-rich spectral (R-and FR-rich) treatments on the growth, development, and morphological changes of Petunia were investigated under diurnal temperature alternations (DIF). The light spectrum treatments were created by using plastic films containing photo-selective dye compounds. The R-rich treatment inhibited elongation of the main stem compared to the control and the FR-rich treatments. Positive DIF (high day / low night temperatures, P-DIF) promoted the main stem elongation, whereas negative DIF (low day / high night temperatures, N-DIF) inhibited it and flowering compared to the control. Inhibition of the main stem elongation by the R-rich treatment under P-DIF and zero DIF (0-DIF) was comparable to N-DIF ; however, flowering was not delayed by the R-rich treatment. The R-rich treatment under P-DIF further improved plant morphology by increasing the size and number of lateral shoots, growth of lateral shoots, and the number of flowers on these lateral shoots. Therefore, by creating a R-rich environment with a photo-selective plastic film, one can produce compact Petunia plants, i.e., a short, main stem but more lateral shoots without interrupting the flowering process.

Journal

Citations (4)*help

See more

References(18)*help

See more

Keywords

Details 詳細情報について

Report a problem

Back to top