Research advance of the aroma of rice and its use in hybrid rice breeding with aromatic and soft.

According to breeding practices of hybrid rice with aromatic and soft in Yunnan,the present research progress of the type,chemical components,identification method,genetic expression,gene mapping of the aroma of rice and the relationship between it and cultivation environment were summarized.To report the breeding research progress of hybrid rice with aromatic and soft in Yunnan,the rice aromatic resource in aromatic rice breeding was discussed.It was pointed out that parents must be high quality,or the important quality gene of aroma etc was equal for quasi-aromatic hybrid rice combination with high yield and good quality.The aroma traits belonged to mutant and it was controlled by the recessive gene.The aroma gene not only existed in the aroma rice,but also existed in the local non-aroma rice resources as heterozygote form,so parent materials of aroma rice breeding could be screened from the local soft rice resources of non-aroma.