Optimization of Tomato Productivity Using Flowering Time Variants

Rajendran, Sujeevan and Heo, Jung and Kim, Yong Jun and Kim, Dae Heon and Ko, Kisung and Lee, Young Koung and Oh, Seok Kwi and Kim, Chul Min and Bae, Jong Hyang and Park, Soon Ju (2021) Optimization of Tomato Productivity Using Flowering Time Variants. Agronomy, 11 (2). p. 285. ISSN 2073-4395

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Abstract

The control of flowering time is a major contributing factor to the improvement of crop yield by optimizing plant growth in a crop cycle. Genetic variants that determine flowering time can provide insights into optimizing flowering time for higher yields and other beneficial traits in tomato crops. Here, we examined a collection of flowering time variants to assess their effects on biomass and total tomato yields. Five late flowering (lf), thirteen large plant (lp), and seven floral homeotic (fh) mutants were identified as flowering time variants that could be rearranged according to leaf production in the primary shoot meristem (PSM). A flowering time continuum of mutants was translated into a positive continuum of biomass yield with more leaves, branches, and floral organs. The flowering time continuum showed an optimal curve of fruit yield, indicating a certain late flowering time as optimal for fruit yield, with the yield gradually decreasing in both directions with earlier or later flowering times. We isolated lf1, lf10, lp22, and fh13 as high-yielding genotypes with optimal flowering time, showing a new balance between the vegetative and flowering phases of tomato. Additionally, lp8, fh8, and fh15 produced extremely high biomass in leaves, axillary shoots, and floral organs due to late flowering in shoot apices with additional production of floral organs and lateral shoot. Our new late-flowering variants provide new genetic resources that can be used to optimize crop yield by fine-tuning flowering time, and future molecular studies could be conducted by revisiting our yield model.

Item Type: Article
Subjects: Open Asian Library > Agricultural and Food Science
Depositing User: Unnamed user with email support@openasianlibrary.com
Date Deposited: 25 Jan 2023 10:04
Last Modified: 03 Oct 2024 05:19
URI: http://publications.eprintglobalarchived.com/id/eprint/166

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