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STUDIES ON THE LIGHT ENERGY UTILIZATION AND HIGH YIELD CULTIVATION Ⅱ.Studies on the relationship between the characteristics of the dry matter production and yield potential in large-panicle type rice

Qi Changhan et al  
This paper attempts to analysis the material fundation of dry matter pro-duction in the large-panicle type rice dy applying the cultural method of thehybrid rice:the difference in the yield potential among the largepanicle typerices;the correlation between the yield and the dry matter production and therate of the translocation of the storage material in the stem-leaf sheath;themultiple regression of the grain fertility depending on the floscules per mu,floscules per unit leaf area in the heading stage and the amount of the fillingmaterials per floscule;the difference in the photosynthetic efficiency amongthe large-panicle rices;the correlation between the dry matter and the rate ofthe net assimilation of the population;the analysis of the standard partialregression on the contribution by the net assimilation efficiency and the leafarea to dry matter production;the analysis of the effection factor of the rateof the translocation
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