Drought adaptation level of maize genotypes based on leaf rolling, temperature, relative moisture content, and grain yield parameters

1st Biennial Conference on Tropical Biodiversity

Effendi, R.^1 ; Priyanto, S.B.^1 ; Aqil, M.^1 ; Azrai, M.^1

Indonesian Cereal Research Institute, Indonesia^1

关键词: Drought stress;    Drought stress conditions;    Dry seasons;    Experimental stations;    Flowering stage;    Leaf temperature;    Maize hybrids;    Physiological maturity;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/270/1/012016/pdf
DOI  :  10.1088/1755-1315/270/1/012016

来源: IOP

【 摘 要 】

The adaptation level among maize genotypes under drought stress is strongly affected by morphology and physiology aspects. To assess the adaptation level of maize hybrids to drought weight, an experiment was conducted in the dry season of 2016 (June to September) at Maros Experimental Station. A total of 70 maize hybrids candidates were evaluated under drought stress at generative (flowering stage) until physiological maturity. The results indicated that leaf rolling scores were negatively correlated with grain yield under drought stress conditions. The hybrid 26/B11209 and P 31 that experienced early leaf moving and a higher leaf rolling score ranged from 4.3, and 3.9 had grain yield of only 1.3 t/ha and 1.2 t/ha respectively, lower compared to the hybrid 34/Mal 03 and Bisi 18 that experienced a delayed leaf rolling and lower leaf rolling score (