The role of endogenous hormones in regulating grain number in oat panicles under drought stress across cultivars
Jiahao Li, Xingyu Wang, Jinghui Liu, Junzhen Mi, Xiquan Wang, Baoping Zhao · 2026
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Description
Jiahao Li and five colleagues study how plant hormones shape grain numbers in oat seed heads under drought, in a paper dated twenty twenty-six. Drought is a major limit on oat yields. Hormones made inside the plant guide how it copes. The team ran a two-year field trial with ten oat types, split by drought tolerance, and measured hormones in the upper and lower parts of the seed head.
Grain number per head proved the main driver of yield in all types. Most of the yield gap came from grains in the lower head. Under drought, one growth hormone fell in tolerant types, while another rose in their lower heads. In sensitive types the patterns were weaker or reversed. The work points to hormone balance in the lower head as a key to drought yield.
Catalog record
| CREATOR | Jiahao Li, Xingyu Wang, Jinghui Liu, Junzhen Mi, Xiquan Wang, Baoping Zhao |
|---|---|
| YEAR | 2026 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 37 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |