Difference Between the Size of Waxy and Non-waxy Kernel in the F<SUB>1</SUB> Rice Plant. : Unbalanced Growth in Floral Glumes and Caryopsis in Rice. V

Abstract

The substantial difference between waxy and non-waxy endosperm character lies in the amylose content of the endosperm starch. In the rice plant, waxy starch consists of only arnylopectine, and non-waxy starch contains seven to 33 percent amylose (WEBB et al. 1968 and JULIANO 1970). Endosperm character of the kernels of the F1 plants between waxy and non-waxy varieties segregates into waxy and non-waxy, because of the xenia. In such F1 plants, the dimentional capacity of floral glumes and the photosynthate supply to the developing kernel of waxy grain is considered be equal to those of non-waxy grain, therefore any dimentional difference between waxy and non-waxy kernel should be attributable to the waxyness itself and or the interaction between the waxy allele and the genetic background.