The limiting factor for rice planting area (Oryza sativa L.) was the most important water enough. Because rice will grow well in the area the water right. The lack of water, even just a few hours in a range of growth may yield reduction.Completely Randomized Design (CRD) were repeated 4 studied effect of stress from lack of water of rice seedlings 3 species that chromosome 8 was replaced by gene drought (strain, 114118 123) and compared with white rice Jasmine 105 the cultured seedlings in the experiment and were cultured in a jar by using liquid nutrient formula. WP grown separately in 3 condition is normal, the condition of hot.Day night temperature 50 C / C) 45 and drought conditions (PEG slag into liquid food to root water absorption is less). The results showed that in normal conditions and state of the 4 strains of rice plant dry weight at a distance.Days after germination was not different. But the hot conditions showed that the plant dry weight, age, and 12 15 days after germination of rice 4 strains were different (P < 0.05) by 123 species are plant dry weight average between 0-15 after emergence of minimal 0.023775 g /, etc. while the white jasmine plant dry weight 105 has the highest average 0.03465 g / plant, followed by the species and has 114 118 stem dry weight average between 0-15 after emergence and 0.028883 0.027792 g / plant White Jasmine 105 varieties respectively. Then, 114 species and is a species 118 heat as well, the 1And 2 3 respectively
keywords rice, gene, heat stress, the stress of drought, hot condition
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