Abstract: With compact -panicle type rice Yanfujing7 as material,studied the effects of the yield and quality of theMachine -transplanted rice under different basic seedling and its components of hills and plants .The result showed thatthe effect on the yield is that the number of plants per hill was higher than the number of planted hills than their mutualeffects.The basic seedling combination A2B3 had the highest yield .The appearance quality was easiest affected by thedifferent basic seedling and its components,the gel consistency and the amylose content next,the milling quality was affectedslightly .Along with the increasing of the basic seedling,the chalkiness area and chalkiness showed a tendency toincrease,the gel consistency trends to be long,the amylose content increased .The basic seedling and its components alsohad effect on the RVA profiles .The setback was the biggest influenced,the trough viscosity next,the peak time was thesmallest .under the same plants per hill,the peaking viscosity and trough viscosity,the final viscosity as well as the pastingtemperature increased straightly along with the increasing of the hills ,while the breakdown and setback drop straightly .Under the same hill,the peaking viscosity and trough viscosity,the final viscosity as well as the pasting temperature increasedfirst and then decreased along with the increasing of the hills ,while the breakdown and setback decreased first华北农学报·20 09,24(增刊):31 6-32 2and then increased .Considering all,the machine transplanting rice Yanfujing7 can get the high yield and high quality at 25 .5 ×104/ha,4 plants per hill .

Key words: Machine-transplantedrice, Transplantingdensity, Yield, Quality, RVAprofiles

CLC Number: 

• S511