AGR 4301 Advanced Plant Physiology: Impacts of Light Conditions and Nutrient Solutions on Duckweed
- PlantHouse Enterprise
- 6 days ago
- 1 min read
Practical on: 1 April 2026
Welcome to the AGR4301 Advanced Crop Physiology laboratory session! In this practical, we explore the environmental factors that drive plant productivity by using duckweed (Lemna spp.) as our fast-growing model organism.
This video walks you through Experiment 1: The Impacts of Light Conditions and Nutrient Solutions on Duckweed Growth and Physiological Responses. We investigate how external environmental factors regulate internal physiological mechanisms, ultimately linking cellular function to crop yield improvement.
What We Test:
We are manipulating two key environmental variables to see their effect on biomass accumulation:
Light Sources: Comparing the efficiency of artificial LED grow lights against indirect natural sunlight.
Nutrient Solutions (1% wt/vol): Testing a diverse range of 7 organic and inorganic sources, including Blood meal, Feather meal, Urea, Christmas Island Rock Phosphate (CIRP), White sugar, Malacca palm sugar, and a Pond water control.
Experimental Setup & Data Collection:
Watch as we set up the experiment using a Nested Randomised Complete Block Design (NRCBD). This rigorous layout accounts for spatial variability and minimizes pseudo-replication by nesting nutrient treatments within trays and light blocks.
Keywords:
AGR4301, Crop Physiology, Duckweed Experiment, Lemna spp, Plant Growth, Nested RCBD, Plant Nutrition, LED Grow Lights, Biomass Accumulation, UPM Agriculture.
Location:
Faculty of Agriculture, Universiti Putra Malaysia
Fakulti Pertanian, Universiti Putra Malaysia, 43000 Seri Kembangan, Selangor
2.983567621706455, 101.73466120334834
Attribution 4.0 International — CC BY 4.0 - Creative Commons
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