Authors: Reem Abukmeil, Ahmad Al-Mallahi
Identifier: CSBE21791
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Published in: CSBE-SCGAB Technical Conferences » 5th CIGR and AGM Quebec City 2021 » Regular Sessions

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Description: This study aimed to assess the effects of light uniformity on the growth of in vitro potato plantlets. A first experiment was conducted in a sunroom where heater, LED lights and exhaust fan were installed. Light and temperature were controlled via a sensing system using temperature and light sensors. A 10-15-10 (NPK) fertilizer was applied to all plants. Within the first week, 69% of plants emerged, and only 28% of remained plants emerged the week after. Observations indicated that plants next to window received higher light intensity during daytime followed by middle row, and row opposed to window. Results, however, showed that shoots were the tallest in the row opposed to window. Under the sunroom set up, it was difficult to associate shoot heights to a single parameter, such as nutrient application, and it was concluded that light nonuniformity within the room had influence on the growth. In the second experiment, the room was blacked out of sunlight and transferred into an indoor space. Light intensity was set to be constant at 600 PPFD at the tip of the potato plants. A different scheme of NPK application of 20-20-20 and 22-0-22 was applied. 98% of plants emerged within the first week and results showed a normal distribution of shoot heights with an average of 133cm. The two experiments showed that providing uniform light in plant experiments investigating plant growth would reduce the impact of the environment on results and a more reliable relationship between plant and fertilizer can be drawn.

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Date: 2021-06-11
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Conference name: 5th CIGR International Conference and CSBE-SCGAB AGM 2021, Quebec City,QC, 11-14 May 2021.
Session name: Plant Systems & Posteharvest Technology 3

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Type: Text.Abstract
Publication type: Presentation
Language 1: en
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Rights: Canadian Society for Bioengineering
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