{"id":11342,"date":"2026-06-30T21:28:22","date_gmt":"2026-06-30T21:28:22","guid":{"rendered":"https:\/\/agri-research-journal.net\/SjarEn\/?p=11342"},"modified":"2026-06-30T21:28:22","modified_gmt":"2026-06-30T21:28:22","slug":"assessment-of-osmotic-stress-tolerance-in-peanut-genotypes-arachis-hypogaea-l-using-polyethylene-glycol-peg6000","status":"publish","type":"post","link":"https:\/\/agri-research-journal.net\/SjarEn\/?p=11342","title":{"rendered":"Assessment of osmotic stress tolerance in peanut genotypes\u00a0(Arachis hypogaea L.) using polyethylene glycol (PEG6000)"},"content":{"rendered":"

Fadi Abbas<\/strong>1*<\/sup>, Ghroud Al-Asoud2<\/sup>, Thamer Al-Henish2 <\/sup>and Mona Jumaa2<\/sup><\/strong><\/span><\/p>\n

1 Homs Research Center, General Commission for Agricultural Scientific Research, Syria.<\/span>
2 Field Crops Research Administration, General Commission for Agricultural Scientific Research, Damascus, Syria.<\/span>
(*Corresponding author: Fadi Abbas, Email: fadiab77@gmail.com<\/a> ).<\/span><\/p>\n

Received: 3\/ 12\/ 2025\u00a0 \u00a0 Accepted: 15\/ 1\/ 2026<\/span><\/p>\n

Abstract<\/strong><\/span><\/p>\n

This experiment was conducted at the General Commission for Scientific Agricultural Research, Homs Research Center, during 2025. Polyethylene glycol (PEG6000) was used to induce several osmotic potentials (0, -0.2, -0.4, -0.6, -0.8 MPa) in the germination medium of ten peanut genotypes to study the germination rate, germination speed, root and shoot length, then to classified the genotypes based on the previous indicators and the relative drought tolerance index into tolerant and sensitive to osmotic potential stress during the germination stage. The experiment was designed according to a completely randomized design (CRD), with three replicates. The results showed genetic variation among the studied genotypes in their response to changes in PEG6000 concentration in the growth medium. Germination percentage decreased with the decrease in the solubility potential of the germination medium (0, -0.2, -0.4, -0.6, -0.8 MPa) at rates of (91.11, 66.67, 60.37, 52.78, 15.93%, respectively). Germination speed also decreased with values (1.95, 1.40, 1.26, 1.07, 0.31, respectively). Both the radicle and plumule lengths of all genotypes decreased with the decrease in the solubility potential of the medium, and the rate of decline in plumule length was higher. The OP -0.6 MPa was considered the most suitable for screening genotypes, as the seedling length decreased by about 50%, the decline then increased sharply at -0.8 MPa. The responses of the studied genotypes to osmotic potential varied, based on relative drought tolerance indices and the Z-distribution plot, the genotypes Sori-2, Florispan, Batem 2025, and NC-7 were considered the most stress-tolerant, and therefore preferable for cultivation in environments more prone to water shortages compared to the other genotypes. Meanwhile, the genotypes Gazipaza, Gom-4, Sori-1, and Sahel were found to be the most sensitive.<\/span><\/p>\n

Keywords:<\/strong> Osmotic potential, Polyethylene glycol (PEG6000), germination stage, seedling, peanut.<\/span><\/p>\n

\u00a0Full paper in Arabic: PDF<\/a><\/span><\/strong><\/p>\n\n\n

<\/p>\n","protected":false},"excerpt":{"rendered":"

Fadi Abbas1*, Ghroud Al-Asoud2, Thamer Al-Henish2 and Mona Jumaa2 1 Homs Research Center, General Commission for Agricultural Scientific Research, Syria.2 Field Crops Research Administration, General Commission for Agricultural Scientific Research, Damascus, Syria.(*Corresponding author: Fadi Abbas, Email: fadiab77@gmail.com ). Received: 3\/ … Continue reading →<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-11342","post","type-post","status-publish","format-standard","hentry","category-sjar"],"_links":{"self":[{"href":"https:\/\/agri-research-journal.net\/SjarEn\/index.php?rest_route=\/wp\/v2\/posts\/11342","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/agri-research-journal.net\/SjarEn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/agri-research-journal.net\/SjarEn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/agri-research-journal.net\/SjarEn\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/agri-research-journal.net\/SjarEn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=11342"}],"version-history":[{"count":1,"href":"https:\/\/agri-research-journal.net\/SjarEn\/index.php?rest_route=\/wp\/v2\/posts\/11342\/revisions"}],"predecessor-version":[{"id":11344,"href":"https:\/\/agri-research-journal.net\/SjarEn\/index.php?rest_route=\/wp\/v2\/posts\/11342\/revisions\/11344"}],"wp:attachment":[{"href":"https:\/\/agri-research-journal.net\/SjarEn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=11342"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/agri-research-journal.net\/SjarEn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=11342"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/agri-research-journal.net\/SjarEn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=11342"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}