{"id":2382,"date":"2020-03-06T03:33:48","date_gmt":"2020-03-06T03:33:48","guid":{"rendered":"http:\/\/agri-research-journal.net\/SjarEn\/?p=2382"},"modified":"2020-03-06T03:33:49","modified_gmt":"2020-03-06T03:33:49","slug":"estimation-of-some-genetic-indicators-of-sunflower-helianthus-annus-l-varieties-growth-and-production-characteristics-under-different-plant-densities","status":"publish","type":"post","link":"https:\/\/agri-research-journal.net\/SjarEn\/?p=2382","title":{"rendered":"Estimation of Some Genetic Indicators of Sunflower Helianthus annus L. Varieties Growth and Production Characteristics under Different Plant Densities"},"content":{"rendered":"\n<p class=\"has-text-align-center\"><strong>Mohamed Nael\nKhattab<sup>*(1) <\/sup>Waseem Adla<sup>(2) <\/sup>and Erwa Suleiman<sup>(1)<\/sup><\/strong><\/p>\n\n\n\n<p>(1). Crops Department, Faculty of Agriculture, Tishreen University,\nLattakia, Syria.<\/p>\n\n\n\n<p>(2). Al-Ghab Agricultural Scientific Research Center. General\nCommission for Scientific Agricultural Research GCSAR, Damascus, Syria.<\/p>\n\n\n\n<p>(*Corresponding\nauthor: Dr. Mohamed Nael Khattab. E-Mail: <a href=\"mailto:aboalabd876@gmail.com\">aboalabd876@gmail.com<\/a>). <\/p>\n\n\n\n<p class=\"has-text-align-center\">Received: 03\/01\/2019&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Accepted: 20\/02\/2019<\/p>\n\n\n\n<p class=\"has-text-align-center\"><strong>Abstract<\/strong><\/p>\n\n\n\n<p>The research\nwas carried out with the aim of estimating some genetic indicators of growth\nand productivity characteristics\nto determine the important trait or traits in the selection to be used in\nbreeding programs, for five varieties of sunflower<em> Helianthus annus<\/em> L.\n(variety 90, variety 19, variety 9, local variety, and variety 54), which were received\nfrom the General Commission for Scientific Agricultural Research (GCSAR), and\nwere planted in three densities (44000, 55000, and 74000 plants\/ha), according\nto randomized\ncompletely block design arranged in split-plot with three\nreplicates. The varieties were distributed in\nthe main plots, while the plant densities were allocated in the secondary plots\nin AL-Gab region (Hama) during season 2018. The results revealed that there were genotypic and\nphenotypic homogeneity, according to the lowest genetic variance coefficient (GCV) and phenotypic\nvariance coefficient (PCV) for most of the studied\ntraits. Genetic variability was the largest\npercentage of phenotypic variation. The broad\nsense heritability values ranged from 83% to 96%, especially at the density of 74000 plants\/ha of some traits and reflected on genetic\nprogress which was high and ranged between 14-30%. The results\nalso showed that the best variety that can be evaluated for several years and\nin more than one geographic location was (variety 9), if planted in a density\nof 44000 plants\/ha to get high productivity components. The characteristics of\nnumber of days until flowering, maturity, plant length and productivity kg\/ha are\nbetter on density of 74000 plants\/ha. It is concluded\nthat number of seeds per head and seeds weight can be used as selection indices.<\/p>\n\n\n\n<p><strong>Keywords:<\/strong> Sunflower, Densities, Genetic indicators.<\/p>\n\n\n\n<p>Full Paper in Arabic: <a href=\"http:\/\/agri-research-journal.net\/sjar\/wp-content\/uploads\/2020\/03\/v7n1p19.pdf\">PDF<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Mohamed Nael Khattab*(1) Waseem Adla(2) and Erwa Suleiman(1) (1). Crops Department, Faculty of Agriculture, Tishreen University, Lattakia, Syria. (2). Al-Ghab Agricultural Scientific Research Center. General Commission for Scientific Agricultural Research GCSAR, Damascus, Syria. (*Corresponding author: Dr. Mohamed Nael Khattab. E-Mail: &hellip; <a href=\"https:\/\/agri-research-journal.net\/SjarEn\/?p=2382\">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":[6,998],"tags":[1028,1027],"class_list":["post-2382","post","type-post","status-publish","format-standard","hentry","category-crops","category-v7n1-february-2020","tag-densities","tag-sunflower"],"_links":{"self":[{"href":"https:\/\/agri-research-journal.net\/SjarEn\/index.php?rest_route=\/wp\/v2\/posts\/2382","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=2382"}],"version-history":[{"count":1,"href":"https:\/\/agri-research-journal.net\/SjarEn\/index.php?rest_route=\/wp\/v2\/posts\/2382\/revisions"}],"predecessor-version":[{"id":2383,"href":"https:\/\/agri-research-journal.net\/SjarEn\/index.php?rest_route=\/wp\/v2\/posts\/2382\/revisions\/2383"}],"wp:attachment":[{"href":"https:\/\/agri-research-journal.net\/SjarEn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2382"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/agri-research-journal.net\/SjarEn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2382"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/agri-research-journal.net\/SjarEn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2382"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}