Morpho-physiological characteristics of corn (Zea mays L.) affected by drought during its vegetative stage
| Autor: | Salomón Buelna Tarín, Victor Gabriel Almada Ruíz, María de la Luz Castro Acosta, Bardo Heleodoro Sánchez Soto, Celia Selene Romero Félix, Jesús del Rosario Ruelas Islas |
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| Rok vydání: | 2021 |
| Předmět: | |
| Zdroj: | Agro Productividad. |
| ISSN: | 2594-0252 2448-7546 |
| DOI: | 10.32854/agrop.v14i8.1960 |
| Popis: | Objective: To evaluate the response corn hybrids have on their growth of aerial and root parts, transpiration,and water use efficiency during their early vegetative stage in irrigation and drought conditions.Design/methodology/approach: A randomized complete block design with a factorial arrangement, threerepetitions, three corn hybrids and two humidity levels were used. The evaluated variables were: plant height,leaf area, root length, dry weight of the aerial and root part of the plants, efficiency in the water use and totalplant transpiration.Results: The leaf area and dry weight data of the aerial parts of the assessed plants were greater in irrigationthan in drought; in contrast, root length, dry root weight and water use efficiency were higher in drought. SV 3245 registered a higher total transpiration per plant; SV 3243 and ASGROW 7543 showed higher dry weight in their aerial parts; ASGROW 7543 accumulated a greater dry weight at their roots and was more water usage efficient. The experiments indicated interaction for root length, dry root weight and efficiency in water use.Limitations on study/implications: The drought caused seedlings’ death at 28 days after sowing (dds), therefore, it was not possible to continue the evaluations from then on.Findings/conclusions: The drought decreased the growth of the aerial parts of the plants and increased the root system and efficiency in their water usage. |
| Databáze: | OpenAIRE |
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