Journal article
Can a speed breeding approach accelerate genetic gain in pigeonpea?
Euphytica, Vol.215(12), Art. 202
2019
Abstract
Pure line breeding is a resource-intensive activity that takes 10 years or more to develop a new cultivar. In some crops, conducting off-season nurseries has significantly reduced the length of the breeding cycle. This approach could not be exploited in pigeonpea [Cajanus cajan (L.) Millsp.], because traditionally it has been a photoperiod-sensitive crop that requires long periods of darkness to induce flowering. However, the recent success of breeding early maturing photoperiod-insensitive genotypes has opened up the possibility of adopting ‘speed breeding’ techniques to enable rapid generation turnover. This paper outlines a speed breeding approach that integrates the use of immature seed germination for rapid generation advancement and a “single pod descent” method of breeding. To accelerate line development, while conserving genetic variability, the approach permits four generations per year and can fast-track field evaluation of resulting homozygous lines. Therefore, the breeding strategy conserves resources and has potential to deliver new early maturing cultivars within a substantially reduced timeframe of 4–5 years.
Details
- Title
- Can a speed breeding approach accelerate genetic gain in pigeonpea?
- Authors/Creators
- K.B. Saxena (Author/Creator) - International Crops Research Institute for the Semi-Arid TropicsR.K. Saxena (Author/Creator) - International Crops Research Institute for the Semi-Arid TropicsL.T. Hickey (Author/Creator) - The University of QueenslandR.K. Varshney (Author/Creator) - International Crops Research Institute for the Semi-Arid Tropics
- Publication Details
- Euphytica, Vol.215(12), Art. 202
- Publisher
- Kluwer Academic Publishers
- Identifiers
- 991005541758807891
- Copyright
- © 2021 Springer Nature Switzerland AG.
- Murdoch Affiliation
- Murdoch University
- Language
- English
- Resource Type
- Journal article
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Source: InCites
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- Collaboration types
- Domestic collaboration
- International collaboration
- Citation topics
- 3 Agriculture, Environment & Ecology
- 3.4 Crop Science
- 3.4.96 QTL
- Web Of Science research areas
- Agronomy
- Horticulture
- Plant Sciences
- ESI research areas
- Plant & Animal Science