Dataset on the agronomic characteristics and combining ability of new parental lines in the two-line hybrid rice systems in Vietnam

Quang Van Tran; Long Thien Tran; Dung Thi Kim Nguyen; Linh Hong Ta; Loc Van Nguyen; Tuan Thanh Nguyen

doi:10.1016/j.dib.2021.107069

Dataset on the agronomic characteristics and combining ability of new parental lines in the two-line hybrid rice systems in Vietnam

Data Brief. 2021 Apr 20:36:107069. doi: 10.1016/j.dib.2021.107069. eCollection 2021 Jun.

Authors

Quang Van Tran¹, Long Thien Tran¹, Dung Thi Kim Nguyen², Linh Hong Ta³, Loc Van Nguyen¹, Tuan Thanh Nguyen¹

Affiliations

¹ Faculty of Agronomy, Vietnam National University of Agriculture, Hanoi, Vietnam.
² Crops Research and Development Institute, Vietnam National University of Agriculture, Hanoi, Vietnam.
³ Vietnam Academy of Agriculture Sciences, Hanoi, Vietnam.

Abstract

This article provides a dataset on the analysis of morphological characteristics and combining ability of some parental lines in the two line hybrid rice system in Vietnam. Four thermo-sensitive male sterile lines and seven pollen restorer lines were used in a Line x Tester mating system to produce twenty-eight hybrids. The parental lines were characterized on 14 agronomic traits in a completely random design experiment. The 28 hybrids were evaluated on 10 traits related to grain yield and morphology in a randomized complete block design experiment with three replications. A line x tester analysis was conducted to estimate the combining ability, genetic variance, and the contribution of parental lines to genetic variation in hybrids. This dataset is valuable for rice breeders in subtropical countries to orient the strategy for breeding of hybrid rice varieties with high efficiency.

Keywords: Combining ability analysis; Rice TGMS lines; Two line hybrid rice.