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Heterosis of Morphology and Anatomy Characters of Soybean-derived from Argomulyo Variety and CpMMV-resistant Soybean Lines
Adelima Dyah Kartika (a), Siti Zubaidah (a), Heru Kuswantoro (b)

(a) Biology Education, Faculty of Mathematics and Natural Sciences, Universitas Negeri Malang, Jl. Semarang No 5, Malang 64145, Jawa Timur, Indonesia
(b) Indonesian Legume and Tuber Crops Research Institute, Indonesian Agency for Agricultural Research and Development. Jl. Raya Kendalpayak Km.8 Malang 65101, East Java, Indonesia.


Abstract

Heterosis is an important trait in the development of hybrid varieties. Information on heterosis characteristics on the morphology and anatomy of soybean leaves is important in relation to the determination of a potential parent for the development of high yielding superior varieties. The aim of this study was to analyze the heterosis of morphology and anatomy characters of F1 soybean leaves derived from Argomulyo varieties and CpMMV-resistant lines. The study design used was a randomized block design with 3 replications. The results showed that the highest estimated heterosis in petiol diameters was shown by the hybrids of UM 4.1 x Argomulyo cross. The character of leaf length had a difference in heterosis value of 76.97%, leaf width of 72.87% and petiol length of 80.74% compared to the highest parent, namely hybrid Argomulyo x UM 6.1 cross. On the petiol diameter characters of 17 combinations of crosses, there was only one hybrid cross that had a positive value with a difference in the value of 81.01% compared to the highest parent UM 4.1 x Argomulyo, while 16 other hybrids were negative. The Argomulyo x UM 3.4 crosses consistently showed heterosis on the character of leaf length, leaf width, petiol length, and leaf ratio. F1 derived from Argomulyo x UM.3.2 crosses had a positive heterosis value on the character of upper surface trichomes, while Argomulyo x UM 7.3 had a negative heterotic value on the lower surface trichome characters and the upper surface trichomes. In the character of the lower surface trichome of 17 of crosses, there were two combinations of crosses that have a positive heterosis value with the difference of 24.27% and 36.93% compared to the highest parents, namely UM 3.4 x Argomulyo and UM 4.1. x Argomulyo, while other crosses were negative. The UM 4.1 x Argomulyo cross was the best hybrid in all leaf anatomical characters. In all leaf anatomical characters, there were four crosses which had negative heterosis, namely Argomulyo x UM 2.4, Argomulyo x UM 7.3, UM 6.2 x Argomulyo, and UM 7.3 x Argomulyo.

Keywords: heterosis, morphology, anatomy, soybean

Topic: Botany

Link: https://ifory.id/abstract/8nG6Mh4LTBQC

Conference: International Conference on Life Sciences and Technology (ICoLiST 2019)

Plain Format | Corresponding Author (Siti Zubaidah)

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