Volume 14, Issue 69 (vol. 14, no. 69 2025)
2025, 14(69): 193-210 |
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Raeesi A, Ilkaee M N, Miri K, Paknejad F, Habibi D. Evaluation of drought stress on yield and water use efficiency of different quinoa genotypes (Chenopodium quinoa Willd) in Iranshahr. Plant Process and Function 2025; 14 (69) : 11
URL: http://jispp.iut.ac.ir/article-1-2192-en.html
URL: http://jispp.iut.ac.ir/article-1-2192-en.html
1- Department of Agronomy and Plant Breeding, Ka.C. Islamic Azad University, Karaj, Iran
2- Department of Agronomy and Plant Breeding, Ka.C. Islamic Azad University, Karaj, Iran ,mn64_ilkaee@yahoo.com
3- Baluchistan Agricultural and Natural Resources Research and Education Center, Agricultural Research, Education, and Extension Organization (AREEO), Iranshahr, Iran
2- Department of Agronomy and Plant Breeding, Ka.C. Islamic Azad University, Karaj, Iran ,
3- Baluchistan Agricultural and Natural Resources Research and Education Center, Agricultural Research, Education, and Extension Organization (AREEO), Iranshahr, Iran
Abstract: (33 Views)
Considering the climate changes and Iran's location in arid and semi-arid regions, selecting drought-tolerant genotypes to reduce the effects of drought stress is an essential management of crop cultivation. For this purpose, in this study, the effect of drought stress on the yield and yield components of different quinoa genotypes was investigated in a split plot with 3 replications in a randomized complete block design in two crop years (2016-2018) at the Balochistan Agricultural and Natural Resources Research Station (Iranshahr). The main factor included drought stress at 3 levels (5000, 4000 and 3000 m3/ha), and the secondary factor included 8 quinoa genotypes (Q12, Q18, Q21, Q26, Q29, Q31, Gizl and Red Carina). According to the results of the experiment, the effect of year on all the studied traits was not significant. The effect of drought stress on the traits of plant height, stem diameter, number of lateral branches per plant, number of spikes in inflorescence, and water use efficiency was significant. Also, the effect of genotype on all the studied traits showed a significant difference. Based on the results of the comparison of the means, the Q12 genotype increased the grain yield (12.16%) and the biological yield (24.22%) compared to the Q18 and Q21 genotypes (the lowest value). Based on the results of comparing the average genotypes, the highest grain yield was observed in the Q12 genotype, which had a grain yield of 12.16 percent and a biological yield of 24.22 percent higher than the Q18 and Q21 genotypes (the lowest values). The results showed that the different quinoa genotypes in the present study differed significantly. The Q18 genotype also had a higher water use efficiency than other genotypes, which can be used in water shortage conditions. Therefore, according to the present results, the Q18 and Q12 genotypes can be recommended to increase the achievement of appropriate yield and increase water use efficiency.
Article number: 11
Type of Study: Applicable |
Subject:
Droughts Stress
Received: 2025/03/12 | Accepted: 2025/07/22 | Published: 2025/12/16
Received: 2025/03/12 | Accepted: 2025/07/22 | Published: 2025/12/16
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