TY - JOUR
T1 - Correlation and path coefficient analysis of grain yield and its components in toraja land-race aromatic rice mutants induced by heavy ion beam
AU - Okasa, Andi Muliarni
AU - Sjahril, Rinaldi
AU - Riadi, Muhammad
AU - Mahendradatta, Meta
AU - Sato, Tadashi
AU - Toriyama, Kinya
AU - Ishii, Kotaro
AU - Hayashi, Yoriko
AU - Abe, Tomoko
N1 - Funding Information:
The authors are highly thankful to the Indonesian Ministry of Research, Technology and Higher Education for funding this research under the integrated Master-Doctor program for excellent undergraduate students (Contract Number: 149/SP2H/LT/DPRM/2018).
Publisher Copyright:
© 2021 Andi Muliarni Okasa et al.
PY - 2021
Y1 - 2021
N2 - Background and Objective: The development of local aromatic rice cultivars has become a distinct segment market for plant breeders and producers. This study aimed to identify the Genotypic Coefficient of Variation (GCV), Phenotypic Coefficient of Variation (PCV), heritability (h2bs), a close relationship between traits and the direct and indirect effect of aromatic rice lines based on traits among the population observed. Materials and Methods: The field experiment was conducted in Enrekang Regency, South Sulawesi, Indonesia (650 m above sea level), from May-October, 2018. Toraja Local Aromatic Rice "Pare Bau" were irradiated with 300 keV µmG1 (10 Gy) Argon ion at RIKEN Nishina Center, Wako-shi, Saitama, Japan. Eighteen aromatic rice lines from M3 generation and one control (non-irradiated) were transplanted in the paddy field. Results: Results showed that the traits observed had a coefficient of variation of moderate to high. All the lines tested showed high heritability associated with the genetic advance as percent of mean (GAM) for all traits, indicating that these traits could be useful to be selected. Based on correlation analysis, the traits that support high yield were the number of panicles, grain weight per panicle and percentage of fertile grain. Moreover, path analysis showed two essential and useful selection traits for grain yield improvement in aromatic rice mutant lines of third generations (M3), i.e., number of panicles and percentage of fertile grain. In the brief of lines, G4 is the highest yield per plant. Conclusion: It can be concluded that variability observed among lines associated with high yield could be exploited in rice breeding, especially mutant aromatic rice.
AB - Background and Objective: The development of local aromatic rice cultivars has become a distinct segment market for plant breeders and producers. This study aimed to identify the Genotypic Coefficient of Variation (GCV), Phenotypic Coefficient of Variation (PCV), heritability (h2bs), a close relationship between traits and the direct and indirect effect of aromatic rice lines based on traits among the population observed. Materials and Methods: The field experiment was conducted in Enrekang Regency, South Sulawesi, Indonesia (650 m above sea level), from May-October, 2018. Toraja Local Aromatic Rice "Pare Bau" were irradiated with 300 keV µmG1 (10 Gy) Argon ion at RIKEN Nishina Center, Wako-shi, Saitama, Japan. Eighteen aromatic rice lines from M3 generation and one control (non-irradiated) were transplanted in the paddy field. Results: Results showed that the traits observed had a coefficient of variation of moderate to high. All the lines tested showed high heritability associated with the genetic advance as percent of mean (GAM) for all traits, indicating that these traits could be useful to be selected. Based on correlation analysis, the traits that support high yield were the number of panicles, grain weight per panicle and percentage of fertile grain. Moreover, path analysis showed two essential and useful selection traits for grain yield improvement in aromatic rice mutant lines of third generations (M3), i.e., number of panicles and percentage of fertile grain. In the brief of lines, G4 is the highest yield per plant. Conclusion: It can be concluded that variability observed among lines associated with high yield could be exploited in rice breeding, especially mutant aromatic rice.
KW - Aromatic rice
KW - Heavy ion beam
KW - Heritability
KW - Irradiation
KW - M generation
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U2 - 10.3923/ajps.2021.406.413
DO - 10.3923/ajps.2021.406.413
M3 - Article
AN - SCOPUS:85106970181
VL - 20
SP - 406
EP - 413
JO - Asian Journal of Plant Sciences
JF - Asian Journal of Plant Sciences
SN - 1682-3974
IS - 3
ER -