Stay-green trait improves yield, quality, and feeding value of forage oats under contrasting eco-sowing systems.

ABSTRACT:

Introduction

Oat (Avena sativa L.) is an important food and forage crop whose yield and quality are influenced by genotype, environmental conditions, and sowing regimes. The stay-green (SG) trait, which delays leaf senescence and maintains photosynthetic capacity, can enhance yield and forage quality; however, systematic evaluation in oat remains limited.

Methods

Two genotypes-QINGYAN 3 (control, CK) and its stay-green mutant (SG)-were evaluated over two consecutive years (2023-2024) at Huangzhong, Qinghai and Yuanmou, Yunnan under contrasting eco-sowing conditions. The SG mutant was developed through field-based phenotypic selection and long-term cultivation, resulting in a stable trait. Yield, nutritional composition, forage value, and stability were evaluated. Geno

SUBMITTER: Duan H 

PROVIDER: S-EPMC12819303 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature