Fig. 1.

Phenotypic variation of mesocotyl and coleoptile elongation at varying soil depths. a Mesocotyl and b coleoptile length of Nipponbare and Kasalath under different burial depth in soil; 12 Seeds of Nipponbare and Kasalath were sown at 3 cm, 5 cm, 7 cm, and 10 cm soil depth and incubated at alternate temperatures of 30 °C and 26 °C (14 h/10 h). At 14 days after sowing, the seedling were excavated and length were measured. Bars represent mean of length with SD (n = 3). Comparisons of the varieties were made with the ANOVA test. * P < 0.05, *** P < 0.001