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Related Experiment Video

Updated: Jan 4, 2026

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Multifloret spikelet improves rice yield.

Deyong Ren¹, Yunfeng Li², Guanghua He²

¹State Key Laboratory of Rice Biology, China National Rice Research Institute, Hangzhou, 310006, China.

The New Phytologist

|November 3, 2019

Summary

This summary is machine-generated.

Researchers explored breeding rice (Oryza sativa) for multifloret spikelets, inspired by Brachypodium distachyon. This approach aims to increase grain yield by enhancing the number of grains per panicle.

Keywords:

floret number lateral floret multifloret spikelet rice yield spikelet determinacy and indeterminacy

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Area of Science:

Plant breeding
Crop science
Genetics

Background:

Rice (Oryza sativa) typically has single-grain spikelets, limiting yield potential.
Brachypodium distachyon exhibits multifloret spikelets, producing multiple grains per spikelet.
Traditional rice breeding focused on panicle architecture, not floret number per spikelet.

Purpose of the Study:

To investigate novel strategies for developing multifloret rice spikelets.
To enhance the number of grains per panicle and improve overall rice yield.
To explore genetic approaches for increasing rice productivity.

Main Methods:

Altering meristem determinacy in rice.
Restoring lateral floret formation in rice spikelets.
Comparative analysis with Brachypodium distachyon models.

Main Results:

Demonstrated feasibility of developing multifloret spikelets in rice.
Identified two distinct approaches for achieving multifloret formation.
Potential for significant increase in grains per panicle.

Conclusions:

Multifloret spikelets offer a promising avenue for increasing rice yield.
Altering meristem determinacy and lateral floret formation are key strategies.
This research opens new possibilities for rice breeding and food security.