Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 1 de 1
Filtrar
Más filtros











Intervalo de año de publicación
1.
BMC Plant Biol ; 24(1): 624, 2024 Jun 29.
Artículo en Inglés | MEDLINE | ID: mdl-38951758

RESUMEN

Drought poses significant risks to maize cultivation by impairing plant growth, water uptake and yield; nano priming offers a promising avenue to mitigate these effects by enhancing plant water relations, stress tolerance and overall productivity. In the current experiment, we tested a hypothesis that seed priming with iron oxide nanoparticles (n-Fe2O3) can improve maize performance under water stress by improving its growth, water relations, yield and biochemical attributes. The experiment was conducted on a one main plot bisected into two subplots corresponding to the water and drought environments. Within each subplot, maize plants were raised from n-Fe2O3 primed seeds corresponding to 0 mg. L- 1 (as control treatment), 25, 50, 75, and 100 mg. L- 1 (as trial treatments). Seed priming with n-Fe2O3 at a concentration of 75 mg. L- 1 improved the leaf relative water content, water potential, photosynthetic water use efficiency, and leaf intrinsic water use efficiency of maize plants by 13%, 44%, 64% and 17%, respectively compared to control under drought stress. The same treatments improved plant biochemical attributes such as total chlorophyll content, total flavonoids and ascorbic acid by 37%, 22%, and 36%, respectively. Seed priming with n-Fe2O3 accelerated the functioning of antioxidant enzymes such as SOD and POD and depressed the levels of leaf malondialdehyde and hydrogen peroxide significantly. Seed priming with n-Fe2O3 at a concentration of 75 mg. L- 1 improved cob length, number of kernel rows per cob, and 100 kernel weight by 59%, 27% and 33%, respectively, under drought stress. Seed priming with n-Fe2O3 can be used to increase maize production under limited water scenarios.


Asunto(s)
Deshidratación , Semillas , Agua , Zea mays , Zea mays/efectos de los fármacos , Zea mays/fisiología , Zea mays/crecimiento & desarrollo , Zea mays/metabolismo , Semillas/efectos de los fármacos , Semillas/crecimiento & desarrollo , Semillas/fisiología , Agua/metabolismo , Sequías , Fotosíntesis/efectos de los fármacos , Compuestos Férricos , Clorofila/metabolismo , Hojas de la Planta/efectos de los fármacos , Hojas de la Planta/fisiología
SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA