Study On Embryo Growth Dynamic And Nutrient Composition Of Giant Embryo Rice

In this study, giant embryo rice black giant embryo and ordinary rice varieties Jiyugeng as experimental materials. In rice after blossom stage sampling fixed. The paraffin sections of samples. Various structures of giant embryo rice and ordinary rice embryo microscopic observation and statistics the number of embryo growth dynamics of longitudinal changes in cell size and scutellum cell. At the same time for protein content in brown rice materials by Infratec1241near infrared grain analyzer the fat content, amylose content was determined.(1)Black giant embryo and Ji Yujing’s embryo growth in the first9days after blossom quickly. From the sixth day after blossom began can already tell the basic structure.the radicle and plumule. The blossom after6to9days of growth is most rapid. This is a period of rapid growth of embryo. From ninth to21days after blossom embryo growth than9days before the slow. The embryo into the growth period of relatively stable.21to30days black giant embryo and embryo growth is no longer obvious Ji Yujing. It was matured.(2) Germ black giant embryo and Ji Yujing’s growth of6to9days after the fastest growth in blossom. It is period of rapid embryo growth. The plumule growth began to slow down from9to21days after blossom. Germ into the growth period of relatively stable. Embryo growth is no longer obvious from21to30days after blossom. It was matured.(3) Radicle black giant embryo and Ji Yujing’s growth of6to9days after the fastest growth in blossom. It is period of rapid embryo growth. The radicle growth began to slow down from9to21days after blossom. Radicle into the growth period of relatively stable. Embryo growth is no longer obvious from21to30days after blossom. It was matured.(4)In blossom after sixth to9days. Black giant embryo. Embryo. Radicle of significant growth. The growth rate of growth rate faster than Ji Yujing. Both are basically the same. Which indicate the formation of giant embryo are in blossom after sixth to9days.(5)At the same time, black giant embryo is lager than Jiyugeng(6) Through statistical giant embryo rice and jiyu japonica in different times after flowering longitudinal section of embryo cell number and the size of scutellum cell results show that as the growth of the embryo. The cell number increased obviously. At the same time embryonic scutellum cell size has increased gradually. And at the same time the black giant embryo cell number and scutellum cell size is larger than jiyu japonica. Therefore decided to giant embryo rice embryo greater reason for this is the number of embryonic cells was increased and the embryo scutellum cell itself together.(7) Black giant embryo protein content of9.4%.1.1%higher than jiyu japonica; giant embryo rice fat content was4.8%. Significantly higher than the2.8%of jiyu japonica.1.71times that of jiyu japonica; giant embryo rice amylose content is14.6%. Jiyu japonica was18.2%. The amylose of giant embryo rice is lower than jiyu japonica; starch content. Giant embryo rice is68.4%. Jiyu japonica was73.1%. Giant embryo rice starch content is less than jiyu japonica.