The alternative breeding approaches for improving yield gains and stress response in pigeonpea (Cajanus cajan)
2020
Pigeonpea is an important food legume crop of semi-arid tropical regions. Plateauing
of pigeonpea yield has been worrying breeders for the past 6–7 decades. Serious
breeding efforts made during this period resulted in various high-yielding and disease
resistant cultivars. However, the gains in pigeonpea productivity have been modest.
The authors, while reviewing this situation, conclude that long generation turnover,
complexity of biological traits, low selection response and overreliance upon
pedigree breeding present the key bottlenecks for this situation. In this paper, some
alternative breeding approaches and technologies are suggested for the genetic enhancement
of yield stability and stress response of pigeonpea.
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