{"id":6002,"date":"2025-12-09T08:29:49","date_gmt":"2025-12-09T04:59:49","guid":{"rendered":"https:\/\/eseed.rifr-ac.ir\/en\/?p=6002"},"modified":"2025-12-10T11:21:00","modified_gmt":"2025-12-10T07:51:00","slug":"astragalus-dictyolobus-c-a-meyer-ex-bunge","status":"publish","type":"post","link":"https:\/\/eseed.rifr-ac.ir\/en\/?p=6002","title":{"rendered":"Astragalus dictyolobus C.A. Meyer ex Bunge"},"content":{"rendered":"

Astragalus dictyolobus <\/em><\/strong>C.A. Meyer ex Bunge<\/strong><\/p>\n

Mohammad Dadmand, Masoumeh Ramezani Yeganeh, Mahnaz Heydari Rikan and Shariar Yeilaghi<\/strong><\/p>\n

Natural Resources Gene Bank, Research Institute of Forests and Rangelands, Agricultural Research, Education and Extension Organization, Tehran, Iran.<\/strong><\/p>\n

Uploaded at December 2025<\/strong><\/p>\n

Scientific editor: Parvin Salehi Shanjani<\/strong><\/p>\n

Seed Storage <\/strong><\/p>\n

The storage behavior of this species is orthodox (desiccation-tolerant seeds), dry to 15-20% eRH, and store at -20\u00b0C.<\/p>\n

 <\/p>\n

Germination<\/strong> requirements<\/strong><\/p>\n

The seeds have physical-physiological dormancy and this is related to seed coat and inhibitors. To remove the seed coat, different methods of scarification can be used (sandpaper, sulfuric acid, hot water, etc.). To break dormancy, stratification with pre-chilling (for 14 days), ultrasonic waves, and hormones (Gibberellic acid 100 ppm) are efficient. The best method for breaking dormancy is rubbing the seeds with sandpaper and moist chilling (14 days at 4 \u00b0C). Then germinate under a constant temperature of 20 \u00baC or alternating temperature 25 \u00baC (16 hours of light) and 15 \u00baC (8 hours of dark).<\/p>\n

\u00a0<\/strong><\/p>\n

Morphology<\/strong><\/p>\n

Fruit type:<\/strong> Pod<\/p>\n

Fruit shape:\u200c<\/strong> Perfect bilocular (divided into two separate sections), small, pubescent, valves yellowish green, reticulated, stalkless, enclosed within a calyx, ventral part convex, grooved, dorsal part flat<\/p>\n

Seed shape: <\/strong>Reniform, compressed, hilum sunken, with pale halo. Surface wrinkled, glabrous, slightly lustrous, dark green, often faint spotted<\/p>\n

Seed size:<\/strong> Length 4.19 to 4.95 mm, width 2.72 to 3.39 mm in an accession from khoy, Azarbayjan, with 1000 seeds weight 30.4 g, which was collected and identified in 2018 by Mahnaz Heydari Rikan and Shariar Yeilaghi and is stored in the Natural Resources Gene Bank of Iran with an accession number 47199<\/p>\n

Average 1000 seed weight:<\/strong> 25 to 30.4 g<\/p>\n

\u00a0<\/strong><\/p>\n

Biological features<\/strong><\/p>\n

Life form:<\/strong> Perennial, woody at the base, pubescent. Stems erect, 10 to 50 cm long<\/p>\n

Inflorescence, flower type, and pollination mechanism:<\/strong> Inflorescence raceme, many-flowered; flowers hermaphrodite, zygomorphic, papilionaceous, corolla (composed of banner: upper large petal, wings: two petals adjacent to the banner, and keel: two bottom petals) yellow to pale brown, wings as long as the keel. Plant monoecious, cross-pollinated. Pollination is carried out by insects and wind.<\/p>\n

Time of flowering:<\/strong> Spring to early summer<\/p>\n

 <\/p>\n

Time of seed ripening:<\/strong> Summer<\/p>\n

Seed dispersal methods: <\/strong>Seed weight and animals<\/p>\n

Geographical distribution<\/strong>:<\/strong> Endemic to Iran. Typus from Khoy, Azarbayjan<\/p>\n

Distribution in Iran: <\/strong>Northwest and West. Mostly in province Azarbayjan, zanjan and Hamedan<\/p>\n

 <\/p>\n

Taxonomy<\/strong><\/p>\n

Family:<\/strong> Fabaceae<\/p>\n

Genus:<\/strong> Astragalus <\/em><\/p>\n

Species:<\/strong> \u200cA. dictyolobus.<\/em><\/p>\n

Persian name:<\/strong> Gavan<\/p>\n

 <\/p>\n

References and Links<\/strong><\/p>\n

Black, M. and Bewley, J.D. 2000. Seed technology and its biological basis. Sheffield Academic Press, 1-419 pp.<\/p>\n

Boj\u0148ansk\u00fd, V. and Farga\u0161ov\u00e1, A. 2007. Atlas of seeds and fruits of central and East-European flora: the Carpathian Mountains region. Springer, Dordrecht, The Netherlands, 1046 pp.<\/p>\n

Ghahraman, A. Flore of Iran. Research Institute of Forests and Rangelands with University of Tehran Publication. https:\/\/floraofiran.net\/index.php.<\/p>\n

Javadi, H. 2021. Seed: Processing and Quality tests. Agricultural Education & Extension Publishers, 175 pp.<\/p>\n

Maassoumi, A.A. 2003. Flora of Iran, Papilionaceae (Astragalus I). Institute of Forests and Rangelands Press, Tehran, Iran, Publication No. 43, 368 pp.<\/p>\n

Mozaffarian, V.A. 1998. Dictionary of Iranian plants names. Farhange Moaser Publisher, Tehran, 671 pp.<\/p>\n

Mozaffarian, V.A. 2012. A Pictorial dictionary of botany. Farhange Moaser Publisher, Tehran, 1088 pp.<\/p>\n

Sharma, O.P. 2009. Plant taxonomy 2E. Tata McGraw-Hill Education, New Delh<\/p>\n","protected":false},"excerpt":{"rendered":"

Astragalus dictyolobus C.A. Meyer ex Bunge Mohammad Dadmand, Masoumeh Ramezani Yeganeh, Mahnaz Heydari Rikan and Shariar Yeilaghi Natural Resources Gene …<\/p>\n","protected":false},"author":6,"featured_media":6035,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[40],"_links":{"self":[{"href":"https:\/\/eseed.rifr-ac.ir\/en\/index.php?rest_route=\/wp\/v2\/posts\/6002"}],"collection":[{"href":"https:\/\/eseed.rifr-ac.ir\/en\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/eseed.rifr-ac.ir\/en\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/eseed.rifr-ac.ir\/en\/index.php?rest_route=\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/eseed.rifr-ac.ir\/en\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=6002"}],"version-history":[{"count":2,"href":"https:\/\/eseed.rifr-ac.ir\/en\/index.php?rest_route=\/wp\/v2\/posts\/6002\/revisions"}],"predecessor-version":[{"id":6036,"href":"https:\/\/eseed.rifr-ac.ir\/en\/index.php?rest_route=\/wp\/v2\/posts\/6002\/revisions\/6036"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/eseed.rifr-ac.ir\/en\/index.php?rest_route=\/wp\/v2\/media\/6035"}],"wp:attachment":[{"href":"https:\/\/eseed.rifr-ac.ir\/en\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=6002"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/eseed.rifr-ac.ir\/en\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=6002"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/eseed.rifr-ac.ir\/en\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=6002"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}