Abstract: The drought-endurance of rice was different at its tillering, jointing, earing and filling stages under dry cultivation.Mulching soil with plastic film could effectively resist ground evaporation, save water as much as 60～85%, and prolong growth period 7～9 days. The tillering ability was intensified, with more 170.1×10⁴ per hectare tillers than paddy field. The number of effective ears was increased, but the grains per ear, grain setting rate and grain weight were decreased. No significant difference of grain yield was found between dry cultivation field and paddy field. Film mulching on dry cultivation field had a strong superiority at earlier growth stage, but LAI, NAR, CGR and specific leaf weight were decreased at later growth stages, with slow filling speed and low economic coefficient.

Key words: Rice, Dry cultivation, Ecophysiological effect, physiological and biochemical cha-racteristics, woody species, herbaceous species, FvCB model, photosynthetic capacity