The head rice factor had very significantly positive linear relationship to grain quality.
Panicle length factor had very significantly positive linear relationship to yield, head rice factor had very significantly negative linear relationship to EQ in the late-cropping season.
Irrational drying conditions would lead to crack of rice, increasing sensitivity of breakage and lowering percentage of head rice during milling.
The rice quality was significantly improved especially for brown rice rate, milled rice rate, head rice rate, chalky grain rate and chalkiness.
Fissured rice grains are broken more easily in milling, causing the reduction of head rice yield.
Variation coefficients of grain chalkiness, translucency and chalkiness were high, but those of brown rice rate, milled rice rate and head rice rate were low.
The rates of brown, milled and head rice increased while chalky rice rate and chalkiness decreased in interplanting with zero tillage.
Handling moisture content of rice kernels reasonably during produce? Process and storage may decrease fissuring and in crease head rice yield.
