High-zinc rice as a breakthrough for high nutritional rice breeding program

International Conference on Climate Change: Challenges and Opportunity on Environment Degradation Researches

地球科学;生态环境科学

Barokah, U.^1 ; Susanto, U.^2 ; Swamy, M.^3 ; Djoar, D.W.^4 ; Parjanto^4

Master Student Agronomy Program, Graduate School of Sebelas Maret University, Jl. Ir. Sutami 36 A, Kentingan, Surakarta, Central Java

57126, Indonesia^1

Indonesian Center of Rice Research, Sukamandi, Jl. Raya, Patok Besi, Subang No.9, Rancajaya, Patokbeusi, Subang, West Java

41256, Indonesia^2

International Rice Research Institute, Pili Drive, UPLB, Los Baños, Laguna

4031, Philippines^3

Department of Agrotechnology, Faculty of Agriculture, Sebelas Maret University, Surakarta, Central Java

57126, Indonesia^4

关键词: Biofortification;    Block designs;    Panicle number;    Plant genotype;    Plant spacing;    Rice breeding programs;    Seedling transplanting;    Yield characteristics;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/129/1/012004/pdf
DOI  :  10.1088/1755-1315/129/1/012004

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

WHO reported climate change already takes 150,000 casualties annually, due to the emergence of various diseases and malnutrition caused by food shortages and disasters. Rice is the staple food for almost all of Indonesian citizens, therefore Zn biofortification on rice is expected to be effective, efficient, massive, and sustainable to overcome the Zn nutritional deficiency. This study aims to identify rice with high Zn content and yield for further effort in releasing this variety. Ten lines along with two varieties as a comparison (Ciherang and Inpari 5 Merawu) were tested in Plumbon Village, Mojolaban Subdistrict, Sukoharjo Regency during February-May 2017. The experiment was designed in a Randomized Completely Block Design with four replications on a 4 m x 5 m area, with 25 cm x 25 cm plant spacing using seedling transplanting techniques of 21 days old seeds. The results showed that the plant genotypes treated had differences in yield characteristics, heading date, harvest age, panicle number, filled and un-filled grain per panicle, seed set, 1000 grains weight, Zn and Iron (Fe) content in rice grain. B13884-MR-29-1-1 line (30.94 ppm Zn, 15.84 ppm Fe, 4.11 ton/ha yield) and IR 97477- 115-1-CRB-0-SKI-1-SKI-0-2 (29.61 ppm Zn, 13.49 ppm Zn, 4.4 ton/ha yield) are prospective variety to be released. Ciherang had Zn content of 23.04 ppm, 11.93 ppm Fe, and yield of 4.07 t/ha.