| Autor: |
Paul J. Loida, Jonathan Robert Phillips, Balasulojini Karunanandaa, Savitha Madappa, Dhanalakshmi Ramachandra |
| Rok vydání: |
2015 |
| Předmět: |
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| Zdroj: |
Recent Advancements in Gene Expression and Enabling Technologies in Crop Plants ISBN: 9781493922017 |
| DOI: |
10.1007/978-1-4939-2202-4_4 |
| Popis: |
Soybean (Glycine max (L.) Merrill) is the most widely cultivated oilseed crop accounting for more than 50 % of the world’s oilseed production. Yield gain in soybean estimated to be 0.5–0.7 % per year in North America has been driven by the adoption of agronomic or management practices and genetic improvement. While genetic improvement through breeding will continue to play a significant role in enhancing yield by the development of cultivars adapted to a wide range of latitudes, biotech traits such as enhanced insect protection and weed control contribute indirectly to yield improvement. An understanding of physiological traits associated with genetic gain in yield offers vast opportunities for further advances in yield improvement. Potential targets for genetic improvement include source capacity (leaf area index, leaf area duration, carbon and nitrogen assimilation, and dry matter partitioning), sink strength (number of primary and secondary yield components, seed-filling rate and duration), and tolerance to suboptimal conditions (water limitation and high/low temperature). Manipulating single or multiple traits using breeding and biotechnology approaches will help to improve intrinsic yield potential and yield stability traits in soybean. Application of multiple technologies to improve yield gain is vital, with the changing climatic conditions and increasing global demand for food and feed. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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