English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Grafted tomato (Lycopersicon esculentum Mill.) plug seedlings were stored at 10°C for 21 d under a photosynthetic photon flux density (PPFD) of 2 ymol m-2 s-1 using mixed light from red and blue LEDs, with different percentages of blue-light PPFD (0, 2, 5, 10 and 50%) . The effect of blue-light PPFD percentage was investigated and the optimal percentage was determined based on the contents of chlorophyll (Chl) and ribulose-l, 5-bisphosphate carboxylase/oxygenase (Rubisco) in leaves on the last days of storage. Chl and Rubisco contents decreased irrespective of the blue-light treatment during storage. On the last day of storage, Chl content were greater in the 2, 5, and 50% blue-light treatments than in the 0% treatment and Rubisco content were greater in the 2-50% treatments than in the 0% treatment. The suppression of the decrease in the Chl content contributed to the preservation of the visual quality of the stored seedlings. It can be concluded that the 2, 5 and 50% blue-light PPFD were effective in preserving the quality of grafted tomato seedlings during storage at 10°C and 2, umol m-2 s-1. In a commercial operation, 2% blue-light PPFD would be optimal, because blue LEDs are expensive.

environment control in biology

Effect of Blue-Light PPFD Percentage in Red and Blue LED Low-Light Irradiation during Storage on the Contents of Chlorophyll and Rubisco in Grafted Tomato Plug Seedlings