Harnessing Speed Breeding in Controlled Environment Ecosystem for Millets Sustainability

Avinash Sharma; Himanshu Pandey; Varucha Misra; V. S. Devadas; Ajith Kumar Kesavan; Punabati Heisnam; Amit Vashishth; Mannu Wangsu; Devendra Singh; A. K. Mall; Rajeev Kumar

doi:10.1111/pbr.13258

journal article Dec 26, 2024

Harnessing Speed Breeding in Controlled Environment Ecosystem for Millets Sustainability

Avinash Sharma

Himanshu Pandey Varucha Misra

V. S. Devadas Ajith Kumar Kesavan Punabati Heisnam Amit Vashishth Mannu Wangsu Devendra Singh

A. K. Mall Rajeev Kumar

Plant Breeding · Wiley

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Abstract

ABSTRACTMillet breeding focuses on improving essential traits such as grain yield, head structure, tiller production, early maturity, reduced plant height, biomass, digestibility and key nutrients like vitamin B1, lysine, cysteine and methionine. Traditional breeding, especially in open environments, can take 9–17 years to release a new variety, whereas speed breeding in controlled environments shortens this to 5–9 years. This accelerated process tackles challenges like male sterility, self‐incompatibility, seed shattering, inbreeding depression and embryo abortion. Techniques such as rapid single‐seed descent enable the creation of near‐homozygous lines in 1–2 years, allowing finger millet to achieve up to five generations per year. Indoor phenotyping platforms enhance speed breeding by providing detailed, consistent monitoring of plant traits. High‐throughput systems in controlled settings like growth chambers or glasshouses allow for non‐invasive assessment of entire crop canopies, measuring traits such as leaf expansion, width, phyllochron and stomatal conductance. This precise phenotyping accelerates trait evaluation and selection, facilitating the development of superior millet varieties. Supported by advanced phenotyping and gene‐editing tools, speed breeding offers a robust solution for improving key agronomic traits, significantly reducing breeding time in controlled environments.

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Published: Dec 26, 2024
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Authors

A

Avinash Sharma

Faculty of Agricultural Sciences Arunachal University of Studies Namsai Arunachal Pradesh India

H

Himanshu Pandey

ICAR‐Indian Institute of Vegetable Research Varanasi Uttar Pradesh India

V

Varucha Misra

Division of Crop Improvement ICAR‐Indian Institute of Sugarcane Research Lucknow Uttar Pradesh India

V

V. S. Devadas

School of Agriculture Gandhi Institute of Engineering and Technology Gunupur Orissa India

A

Ajith Kumar Kesavan

Faculty of Agricultural Sciences Arunachal University of Studies Namsai Arunachal Pradesh India

P

Punabati Heisnam

College of Agriculture Central Agricultural University Manipur India

A

Amit Vashishth

Patanjali Herbal Research Department Patanjali Research Institute Haridwar Uttarakhand India; College of Smart Agriculture COER University Roorkee Uttarakhand India

M

Mannu Wangsu

Department of Agricultural Engineering North Eastern Regional Institute of Science and Technology Nirjuli Arunachal Pradesh India

D

Devendra Singh

Faculty of Biotechnology Shri Ramswaroop Memorial University Barabanki Uttar Pradesh India

A

A. K. Mall

Division of Crop Improvement ICAR‐Indian Institute of Sugarcane Research Lucknow Uttar Pradesh India

R

Rajeev Kumar

Division of Plant Physiology & Biochemistry ICAR‐Indian Institute of Sugarcane Research Lucknow Uttar Pradesh India

Cite This Article

Avinash Sharma, Himanshu Pandey, Varucha Misra, et al. (2024). Harnessing Speed Breeding in Controlled Environment Ecosystem for Millets Sustainability. Plant Breeding. https://doi.org/10.1111/pbr.13258

Harnessing Speed Breeding in Controlled Environment Ecosystem for Millets Sustainability

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