Water Stress on Germinating Paddy Seeds
Abstract
This study evaluated variations in water stress on the germination of three famous rice varieties (Oryza sativa L.) amongst farmers in Thailand. The research was designed by a randomised complete block (RCBD) with four different treatments of moisture in the plant material which included (1) 80% humidified for proper planting condition (control), (2) 60% moisture (3) Moisture level of 40%, and (4) moisture content of 10%. Rice seeds have been soaked in water for 48 hours before planting. The moisture content of the planting equipment was monitored during the experiment. The experiment measured physical growth, including germination rate, stem height, root length and chemical growth, chlorophyll content of rice plants. The findings showed that all rice varieties were tending, to grow in the same direction. The germination rate of all rice varieties depends on the water content of the vegetable material. They all grow into 80% moisture, followed by 60% and 40%, respectively. However, 10% moisture did not germinate for all varieties. Riceberry rice showed better growth than other rice from a physical perspective. Medium height 13.56 cm, root length 4.76 cm, high chlorophyll content 2.0 mg/g. The second highest germination rate was Pathumthani 1 when KDML 105 had the lowest germination rate. Moisture or water retention of less than 40% is unsuitable for rice cultivation.
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