Enhancing maize grain yield under salt‐affected field conditions using salt‐resistant maize hybrids and higher planting density

نویسندگان

چکیده

Abstract Background In arid and semiarid countries, grain yield of maize is increasingly impaired by soil salinity. Beside amelioration, the development salt‐resistant cultivars a possibility to enhance crop on salt‐affected soils. Aims This study aimed at testing performance in field hybrids soil. addition, planting density was optimized under saline conditions. Methods Four ( Zea mays L. SR‐05, SR‐12, SR‐15, SR‐16) were grown control (EC = 2.0–2.5 dS m −1 ) 10.0–12.0 conditions compared salt‐sensitive cv. Pioneer‐3906. Planting (5, 8, or 11 plants −2 for SR‐12 local hybrid EV‐78. Results Yield Pioneer‐3906 significantly reduced salinity because inhibited kernel setting, whereas SR showed no decrease yield. Based yield, optimum 8 with further increase . contrast EV‐78 harvest index relative 5 observed. Conclusions Vegetative growth decreased due Phase‐I effects but neither water deficiency nor ion toxicity. The experiment corroborated salt resistance Under conditions, may be higher than nonsaline when sufficient supply artificial irrigation guaranteed.

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ژورنال

عنوان ژورنال: Journal of Plant Nutrition and Soil Science

سال: 2023

ISSN: ['1436-8730', '1522-2624']

DOI: https://doi.org/10.1002/jpln.202200423