Evaluation of morphobiological indicators of rice double haploids

Abstract

Rice is a key crop in the south of the Russian Far East. Adoption of biotechnological methods combined with traditional plant breeding enhances effectiveness of the breeding process. Rice double haploid were evaluated according to economically valuable traits. The objects of the research were double haploid lines of the fourth (R4) and fifth (R5) generation obtained from six hybrid combinations: Hejiang 20 x KT-3, Khazar х Dariy 23, Lugovoy х Virazh, № 24 х Dolinny, Dolinny х Szarvasi 70, Romanico х w/n 9167. Using double haploid lines as starting homozygous material, increase efficiency of a breeding program and help to save time and effort. The goal of this research was to evaluate of rice double haploid plants from among hybrids of the fourth and fifth generation to select plants for the breeding process. After the evaluation, we selected short productive early-maturing lines with good technological properties of cereals. These lines will be used in the further breeding process to create a new rice variety.