{"id":11580,"date":"2026-08-31T11:13:23","date_gmt":"2026-08-31T11:13:23","guid":{"rendered":"https:\/\/agri-research-journal.net\/SjarEn\/?p=11580"},"modified":"2026-08-31T11:13:23","modified_gmt":"2026-08-31T11:13:23","slug":"the-effect-of-planting-dates-and-plant-density-on-some-productive-and-qualitative-traits-of-soybean-glycine-max-l-under-the-conditions-of-deir-ezzor-governorate","status":"publish","type":"post","link":"https:\/\/agri-research-journal.net\/SjarEn\/?p=11580","title":{"rendered":"The effect of planting dates and plant density on some productive and qualitative traits of soybean (Glycine max L.) under the conditions of Deir Ezzor governorate"},"content":{"rendered":"<p style=\"text-align: center;\"><span style=\"font-family: 'times new roman', times, serif;\"><strong>Nassar Al-Helou<sup>1*<\/sup> Talal Al-Abban<sup>2<\/sup> Muhammed Khair Othman<sup>2<\/sup> Saleh Al-Moustafa<sup>3<\/sup><\/strong><\/span><\/p>\n<p><span style=\"font-family: 'times new roman', times, serif;\">1 Department of Field Crops, Faculty of Agriculture, Alfurat University, Dier-Ezzor, Syria.<\/span><br \/><span style=\"font-family: 'times new roman', times, serif;\">2 General Commission for Scientific Agricultural Researcher, Dier-Ezzor Agricultural Research, Syria.<\/span><br \/><span style=\"font-family: 'times new roman', times, serif;\">(*Corresponding author Nassar Al-Helou1, Email: <a href=\"mailto:nsaralhlw784@gmail.com\">nsaralhlw784@gmail.com<\/a>).\u00a0<\/span><\/p>\n<p style=\"text-align: center;\"><span style=\"font-family: 'times new roman', times, serif;\"><strong>Received:<\/strong> 21\/ 12\/ 2025\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <strong>Accepted:<\/strong> 24\/ 2\/ 2026<\/span><\/p>\n<p><span style=\"font-family: 'Times New Roman', Times; font-size: 17px;\"><strong>Abstract:\u00a0<\/strong><\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-family: 'Times New Roman', Times; font-size: 17px;\">A field experiment was conducted at Salo Research Station, Deir ez-Zor Agricultural Research Center (Syria) in 2024 to assess planting dates and plant densities effects on soybean (<em>Glycine max<\/em> L.) line SB-335. The trial followed a split-plot RCBD with three replications: planting dates (1, 15 and 30 May) in main plots and three plant densities (166000 \u060c83000 \u060c55000\/ha-1) in subplots. Results showed that early planting (1 May) increased pods per plant (28.43), 100-seed weight (13.52 g), seed yield (3.16 ton\/ha-1) and oil content (16.44 %) and reduced first-pod height (6.5 cm) and the early planting dates with higher density (166 plants ha\u22121). increased seed yield that it reached 3.61 ton\/ha-1.<\/span><\/p>\n<p><span style=\"font-family: 'times new roman', times, serif;\"><strong>Keywords:<\/strong> soybean; planting date; plant density; seed yield; oil content; Deir Ezzor.<\/span><\/p>\n<p><strong><span style=\"font-family: 'times new roman', times, serif;\">\u00a0Full paper in Arabic: <a href=\"http:\/\/agri-research-journal.net\/SjarEn\/wp-content\/uploads\/v13n4p30-1.pdf\">PDF<\/a><\/span><\/strong><\/p>\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Nassar Al-Helou1* Talal Al-Abban2 Muhammed Khair Othman2 Saleh Al-Moustafa3 1 Department of Field Crops, Faculty of Agriculture, Alfurat University, Dier-Ezzor, Syria.2 General Commission for Scientific Agricultural Researcher, Dier-Ezzor Agricultural Research, Syria.(*Corresponding author Nassar Al-Helou1, Email: nsaralhlw784@gmail.com).\u00a0 Received: 21\/ 12\/ 2025\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 &hellip; <a href=\"https:\/\/agri-research-journal.net\/SjarEn\/?p=11580\">Continue reading <span class=\"meta-nav\">&rarr;<\/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-11580","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\/11580","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=11580"}],"version-history":[{"count":1,"href":"https:\/\/agri-research-journal.net\/SjarEn\/index.php?rest_route=\/wp\/v2\/posts\/11580\/revisions"}],"predecessor-version":[{"id":11585,"href":"https:\/\/agri-research-journal.net\/SjarEn\/index.php?rest_route=\/wp\/v2\/posts\/11580\/revisions\/11585"}],"wp:attachment":[{"href":"https:\/\/agri-research-journal.net\/SjarEn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=11580"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/agri-research-journal.net\/SjarEn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=11580"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/agri-research-journal.net\/SjarEn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=11580"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}