E3S Web Conf.
Volume 232, 2021International Conference on Agribusiness and Rural Development (IConARD 2020)
|Number of page(s)||11|
|Published online||25 January 2021|
Genetic Analysis of Tertiary Rice Panicle Branches
1 West Java Assessment Institute for Agricultural Technology, Indonesian Agency for Agricultural Research and Development, Ministry of Agriculture, Jl. Kayuambon No. 80 Lembang Bandung Barat 40391 West Java, Indonesia
2 Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Jl. Meranti Darmaga, Bogor 16630, Indonesia
* Corresponding author: firstname.lastname@example.org
Panicle branching trait of rice is one of the key factors in detemining grain yield. This study was aimed to elucidate the genetic inheritance pattern of the tertiary rice panicle branches trait. Six rice populations i.e F1, F1R, F2, F2R, BC1P1, and BC1P2 generation including parental lines were generated as materials. The experiment was conducted at IPB University, Bogor, Indonesia from April 2017 to February 2019. Several parameters of genetic inheritance was observed. The result revealed that the inheritance of the tertiary panicle branching was controlled by many genes with the high broad-sense heritability and the moderate narrow-sense ones. Based on the scaling test, it was observed that additive dominant model did not fit to the number of tertiary branches and the number of grains of tertiary panicle branches. These phenomenons suspected may due probably to the effect of epistasis. In the advanced analysis employed by using the joint scaling test revealed that the gene action of the number of tertiary branches and number of grains on the tertiary branches were additive and additive×additive.
© The Authors, published by EDP Sciences, 2021
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