The Response of Some Quinoa (Chenopodium quinoa Willd.) Genotypes to Water Stress
Entessar Al-Jbawi*(1) Fadi Abbas(2) and Thamer Al-Huniesh(3)
(1). Sugar Beet Research Department, Crops Research Administration, General Commission for Scientific Agricultural Research (GCSAR), Damascus, Syria.
(2). Homs Agricultural Research Center, (GCSAR), Damascus, Syria.
(3). General Commission for Scientific Agricultural Research (GCSAR), Damascus, Syria.
(*Corresponding author: dr.entessara@gmail.com or dr.entessaraljbawi@gcsar.gov.sy).
Received: 01/04/2020 Accepted: 01/06/2020
Abstract
This experiment was conducted at Homs Agriculture Research Center Lab, General Commission for Scientific Agricultural Research (GCSAR), Syria, during 2019, to assess the impact of osmotic stress on germination process and initial seedling growth of five introduced quinoa varieties. The osmotic stress was generated artificially using PEG6000. completely randomized design was applied with six replicates. Results showed that, with decreasing osmotic potentials, germination percentage, germination index, shoot and radicle length were decreased, while the average of germination time increased. Results also indicated that there were significant differences among quinoa varieties in response to water stress, and the two varieties Giza1 and NSL-1.6389 were the most tolerant. Seed germination recovery indicated that PEG had an osmotic inhibition on quinoa seeds.
Key words: Water stress, Germination process, Seedling, Quinoa varieties.
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