Open AccessSelection and evaluation of agronomic character of high temperature tolerant mutant gogo rice (Oryza sativa L) in nursery phase
Author(s) -
Dwi Rahmawati,
AK Dewi,
AW Endah Prasetya
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/672/1/012002
Subject(s) - oryza sativa , mutant , biology , selection (genetic algorithm) , agronomy , greenhouse , horticulture , microbiology and biotechnology , genetics , computer science , gene , artificial intelligence
Increasing global temperatures due to climate change have a negative impact on crops. The aim of this research is to study the selection and evaluation of agronomic characters between mutant lines and comparison varieties against high temperature stress in the nursery phase. This research was conducted from September to December 2019 in the PAIR-BATAN (Isotope and Radiation Application Center-National Nuclear Technology Agency) greenhouse. This study used a qualitative descriptive method with a high temperature stress score according to the International Rice Testing Program (IRTP). The genetic material used was 64 numbers of the third generation Situgintung mutant lines tested and the comparison varieties were the N22 (high temperature tolerant) and IR52 (high temperature susceptible) variety and the original Situgintung variety. The results showed that of the 64 lines of the third generation of upland rice Situgintung, 15 lines were selected that had high temperature stress tolerance, namely 1 vulnerable line and 14 highly susceptible lines. The recovery score showed that there were 15 lines that were able to regrow after high temperature stress and had no different characters of agronomic diversity. Furthermore, to obtain homogeneous varieties of situgintung, purification and observation of the selected lines can be carried out.