アブストラクト：
Recent numerical simulations predict that the presence of bulge in galaxies reduce the star formation efficiency (SFE); i.e. so-called “morphological quenching”. To test if galaxy morphologies really affect the quenching of star formation during the galaxy transition phase, we performed a systematic CO(1-0) line survey of "disk-dominated" and "bulge-dominated" green-valley galaxies at fixed stellar mass and SFR. By completing ~200-hours observation with NRO 45m telescope in the 2017-2018 semester, we find that the correlation between SFR and M(H2) is independent of their morphologies, suggesting that the SFEs are not significantly dependent on their morphologies.