Fig. 4.
Rice tillering inhibition by methyl phenlactonoates. (A) Tillering phenotype of d10 mutant in response to MPs. Methyl phenlactonoates were applied (2.5 μM) to 1-week-old rice seedlings (Shiokari, d3, d10) grown hydroponically in 50 ml tube twice a week up to 3 weeks. MP3 treatment led to growth retardation and senescence. (B) Number of tillers per plant counted after 3 weeks of MP application. Data are means±SE (n=8). Means not sharing a letter in common differ significantly at P0.05. (C) EC50 (half-maximal effective concentration) of selected MPs for tillering inhibition of the rice d10 mutant.