Uniformity test of the upland rice lines F8 from crosses of local Bangka rice and lodging resistance superior varieties in Belitung Regency

Dr. Eries Dyah Mustikarini, SP., M.Si., - and Gigih Ibnu Prayoga, S.P., M.P., - and Dr. Ratna Santi, S.P., M.Si., - and E. Evita, - (2023) Uniformity test of the upland rice lines F8 from crosses of local Bangka rice and lodging resistance superior varieties in Belitung Regency. Prosiding ISEPROLOCAL 2022.

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Abstract

Lodging on plant rice can lead to reduces yields. Developing rice varieties with lodging resistance can do through the breeding activities. Crossing between local Bangka rice and lodging resistance superior varieties have been carried out and obtained F8 lines of upland rice. Before releasing the rice lines released into varieties, it must meet the high uniformity criteria. This research aims to determine the uniformity level of F8 upland rice lines. This research was conducted using an experimental method. The design used a randomized block design with 10 treatments (5 F8 lines and 5 comparison varieties). The F8 lines used 19I-06-09-23-03, 21B-57-21-21-23, 23F-04-10-18-18, 23A-56-20-07-20 and 23A-56-22-20-05. The comparison varieties used i.e. Danau Gaung, Inpago 8, Inpago 12, Rindang and PBM UBB 1. The research data were analyzed using qualitative descriptive, variability test, uniformity test, and Least Significant Increase (LSI) test. The result showed that F8 lines of upland rice had narrow genotypic and phenotypic variability values in all characters observed. The percentage of uniformity was obtained in the range between 83.3-100%. It shows that the F8 lines had a high uniformity. F8 lines of 19I-06-09-23-03, 21B-57-21-21-23, 23F-04-10-18-18, and 23A-56-20-07-20 showed 100% uniformity level in plant height, flag leaf length, panicle length, productive tillers number, and filled grains number. The result of LSI test obtained 23A-56-22-20-05 and 23A-56-20-07-20 lines are better than the comparison varieties.

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