The Anti-ethylene Growth Regulator Silver Thiosulfate (STS) Increases Flower Production and Longevity in Cassava ( Crantz)

Overview

Journal Plant Growth Regul

Date 2020 Mar 28

PMID 32214568

Citations 18

Authors

Peter T Hyde

Xian Guan

Viviane Abreu

Tim L Setter

Affiliations

Soon will be listed here.

Abstract

Cassava, which produces edible starchy roots, is an important staple food for hundreds of millions of people in the tropics. Breeding of cassava is hampered by its poor flower production, flower abortion, and lack of reproductive prolificacy. The current work determined that ethylene signalling affects floral development in cassava and that the anti-ethylene plant growth regulator silver thiosulfate (STS) mitigates the effects of ethylene on flower development. STS did not affect the timing of flower initiation, but improved early inflorescence and flower development as well as flower longevity such that flower numbers were increased. STS did not affect shoot and storage root growth. Studies of silver accumulation and treatment localization support the hypothesis that the beneficial effects of STS are confined to tissues of the shoot apex. The most effective timing of application was before inflorescence appearance extending to post-flower appearance. Based on this work a recommended protocol for STS use was developed. This work has the potential to improve methods for enhancing cassava flower development in breeding nurseries and thereby synchronize flowering of desired parents and enable the production of abundant progeny of desired crosses.

Citing Articles

Advancements and strategies of genetic improvement in cassava ( Crantz): from conventional to genomic approaches.

Xiao L, Cheng D, Ou W, Chen X, Rabbi I, Wang W Hortic Res. 2025; 12(3):uhae341.

PMID: 40061801 PMC: 11886850. DOI: 10.1093/hr/uhae341.

Assessment of Cassava Pollen Viability and Ovule Fertilizability under Red-Light, 6-Benzyl Adenine, and Silver Thiosulphate Treatments.

Baguma J, Mukasa S, Ochwo-Ssemakula M, Nuwamanya E, Iragaba P, Wembabazi E Plants (Basel). 2024; 13(14).

PMID: 39065515 PMC: 11280604. DOI: 10.3390/plants13141988.

Development of Methods for Improving Flowering and Seed Set of Diverse Germplasm in Cassava Breeding.

Hyde P, Esan O, Diebiru-Ojo E, Iluebbey P, Kulakow P, Peteti P Plants (Basel). 2024; 13(3).

PMID: 38337915 PMC: 10857246. DOI: 10.3390/plants13030382.

Agronomic and hormonal approaches for enhancing flowering intensity in white Guinea yam ( Poir.).

Mondo J, Agre P, Chuma G, Asiedu R, Akoroda M, Asfaw A Front Plant Sci. 2023; 14:1250771.

PMID: 37877088 PMC: 10593412. DOI: 10.3389/fpls.2023.1250771.

Flowering induction in cassava using photoperiod extension premature pruning and plant growth regulators.

Santos A, Sousa M, Cunha Alves A, de Oliveira E PLoS One. 2023; 18(10):e0292385.

PMID: 37797072 PMC: 10553807. DOI: 10.1371/journal.pone.0292385.

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