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Open AccessArticle

New Parameters for Seedling Vigor Developed via Phenomics

1
National Institute of Agricultural Sciences, Rural Development Administration (RDA), Jeonju 54874, Korea
2
Department of Plant Resources and Environment, Jeju National University, Jeju 63243, Korea
3
Department of Agricultural Machinery Engineering, Chungnam National University, Deajeon 34134, Korea
*
Author to whom correspondence should be addressed.
These authors also contributed equally to this work.
Appl. Sci. 2019, 9(9), 1752; https://doi.org/10.3390/app9091752
Received: 21 March 2019 / Revised: 13 April 2019 / Accepted: 23 April 2019 / Published: 27 April 2019
Early seedling establishment in rice (Oryza sativa L.), which is measured by primary/secondary tiller, shoot length, biomass, root-related traits, and leaf area index, is an important trait because it helps to compete for light, air, and water for better tolerating various abiotic stresses. Consequently, it can affect the yield. However, there are not many research studies on this subject. Furthermore, previous studies have only measured the target traits once. However, this does not reflect the variation of growth rate during the seedling stage. Thus, two data points, two weeks and four weeks after planting, were used in the current study. As a result, two QTL regions were detected for the growth differences via plant height and green area (reflecting tillering). We expect that these results can be utilized by breeders to evaluate and select vigorous seedlings for their breeding programs. View Full-Text
Keywords: plant phenomics; recombinant inbred line (RIL); rice; initial growth; QTL plant phenomics; recombinant inbred line (RIL); rice; initial growth; QTL
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Kim, S.L.; Chung, Y.S.; Ji, H.; Lee, H.; Choi, I.; Kim, N.; Lee, E.; Oh, J.; Kang, D.-Y.; BAEK, J.; Lee, G.-S.; Kwon, T.-R.; Kim, K.-H. New Parameters for Seedling Vigor Developed via Phenomics. Appl. Sci. 2019, 9, 1752.

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