{"id":2525,"date":"2020-06-27T04:15:25","date_gmt":"2020-06-27T04:15:25","guid":{"rendered":"http:\/\/agri-research-journal.net\/SjarEn\/?p=2525"},"modified":"2020-06-27T04:15:25","modified_gmt":"2020-06-27T04:15:25","slug":"effect-of-planting-date-seed-rate-and-location-on-the-%e2%80%8eincidence-of-luteoviruses-affecting-chickpea-under-natural-%e2%80%8einfection-in-syria","status":"publish","type":"post","link":"https:\/\/agri-research-journal.net\/SjarEn\/?p=2525","title":{"rendered":"Effect of planting Date, Seed Rate and Location on the \u200eIncidence of Luteoviruses Affecting Chickpea under Natural \u200eInfection in Syria"},"content":{"rendered":"\n

Nader Assad*(1)<\/sup>\nSafaa Kumari(2)<\/sup> Amin Haj-Kassem(3) <\/sup>Salah Al-Chaabi(4)<\/sup>\nand Attia Arab(4)<\/sup><\/strong><\/p>\n\n\n\n

(1).\nAlGhab Research Center, General Commission for Scientific Agricultural Research\n(GCSAR), Damascus, Syria.<\/p>\n\n\n\n

(2).\nTorbol Station, International Center for Agriculture Research in Dry Area\n(ICARDA), Albekaa, Lebanon.<\/p>\n\n\n\n

(3).\nDepartment of Plant Protection, Faculty of Agriculture, Aleppo University,\nAleppo, Syria.<\/p>\n\n\n\n

(4).\nGeneral Commission for Scientific Agricultural Research (GCSAR), Damascuse,\nSyria.<\/p>\n\n\n\n

(*Corresponding\nauthor: Nader Assad. E-Mail: asaad_nader@yahoo.com<\/a>).<\/p>\n\n\n\n

Received: 21\/03\/2020                               Accepted: 12\/05\/2020<\/p>\n\n\n\n

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

Field experiments were carried out during 2017\/2018 cropping season\nto study the effect of three planting dates (5 December, 25 December and 15\nJanuary) and five seed rates (80, 100, 120, 140 and 160 kg\/ha) in two different\nsites\/locations (Al Ghab Research Center and Jeb Ramleh Research Station\/\nSyria) on the chickpea infection with luteoviruses (aphid-born persistently\ntransmitted viruses), which causing yellowing and stunting symptoms under\nnatural infections. Tissue blot-immunoassay (TBIA) results showed that\nluteoviruses (family Luteoviridae<\/em>) were the main causal of stunting and\nyellowing symptoms on randomly selected chickpea plants. High level of\nsignificant differences (P < 0.001) were recorded within the two\nexperimental sites\/locations. The early sowing date (5 December) reduced the\npercence of virus incidence by 75 and 85%, and grain yield were increased by\n3.5 and 30.9% compared to other sowing dates (25 December and 15 January,\nrespectively). Also, incidence of luteoviruses was reduced by 41% and\nremarkable enhancement of grain yield up to 28% was recorded on the second\nsowing date (25 December) compared to 3rd<\/sup> planting date (15\nJanuary). Disease incidence differed significantly (P< 0.001) at all levels\nof seeding rates, and it decreased gradually (2.7> 1.9> 1.5> 0.97>\n0.63 %) in contrary to increased seeding rates (80< 100< 120< 140<\n160 kg\/ha, respectively). In addition, significant interactions were recorded\nbetween planting date and seed rate treatments, whereas the best treatment\nwhich was recorded when planting at the rates of 100 and 120 kg\/h in early date\n(5 September), and the highest grain yield were 2,495 and 2,487 kg\/ha,\nrespectively, with low luteovirus incidence (0.5 and 0.45%, respectively). On\nthe other hand, increasing of seed rates up to 140 and160 kg\/ha played a\npositive role by decreasing the rate of virus infections by 64.3 and 76.7%,\nrespectively, and enhancing the grain yield up to 25.7 and 30%, respectively\nwhen planting date was late on (15th<\/sup> January), to the contrary of\nearly planting date where high seed rates resulted into negative effects on the\ngrain yield. The highest parameters (except the disease severity levels) were\nsignificantly recorded (P<0.001) in Al Ghab Research Center in comparison to\nthat of Jeb Ramleh Research Station with rates of 12, 40 and 39.5% for grain\nyield, infected plants per plot and disease incidence %, respectively; and in\ngeneral, the performance of parameters were somehow similar in both locations\nwith some differences.   <\/p>\n\n\n\n

Keywords:<\/strong> TBIA, chickpea, seed rate, planting dates, Syria, Luteoviruses.<\/p>\n\n\n\n

Full paper in English: PDF<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

Nader Assad*(1) Safaa Kumari(2) Amin Haj-Kassem(3) Salah Al-Chaabi(4) and Attia Arab(4) (1). AlGhab Research Center, General Commission for Scientific Agricultural Research (GCSAR), Damascus, Syria. (2). Torbol Station, International Center for Agriculture Research in Dry Area (ICARDA), Albekaa, Lebanon. (3). Department … 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":[5,1137],"tags":[281,282,524,35,362],"class_list":["post-2525","post","type-post","status-publish","format-standard","hentry","category-plant-protection","category-v7n3june-2020","tag-chickpea","tag-planting-dates","tag-seed-rate","tag-syria","tag-tbia"],"_links":{"self":[{"href":"https:\/\/agri-research-journal.net\/SjarEn\/index.php?rest_route=\/wp\/v2\/posts\/2525","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=2525"}],"version-history":[{"count":1,"href":"https:\/\/agri-research-journal.net\/SjarEn\/index.php?rest_route=\/wp\/v2\/posts\/2525\/revisions"}],"predecessor-version":[{"id":2526,"href":"https:\/\/agri-research-journal.net\/SjarEn\/index.php?rest_route=\/wp\/v2\/posts\/2525\/revisions\/2526"}],"wp:attachment":[{"href":"https:\/\/agri-research-journal.net\/SjarEn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2525"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/agri-research-journal.net\/SjarEn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2525"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/agri-research-journal.net\/SjarEn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2525"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}