0000012287 00000 n They can make very good cut flowers for display. - Image Code: GLDCM-12. Nov. 15,1935 The Chromosome Number in Gladiolus 949 While many of the records concerning the development of the com- mercial varieties of Gladiolus may be questionable, there seems to be no doubt that many of the external characters which distinguish some of the species are found in the current commercial types» 0000009873 00000 n region (Jindal 1968). The basic chromosome number reported in Gladiolus is X =15, ranging from diploid (2n = 30) to hypododecaploid (2n = 180)7. The basic haploid chromosome number is 15, and many 30-chromosome diploids are known. Semantic Scholar is a free, AI-powered research tool for scientific literature, based at the Allen Institute for AI. It is The chromosome number of the different species increases to Common in gardens in southern England, Gladiolus communis subsp. 1989-93 NSF Grant BSR 88-01319: Index to Plant Chromosome Numbers 1989 NGS Grant 3971-88: Gladiolus and Geissorhiza in Madagasca 1989-92 NSF Grant BSR 89-06300: Systematics of Gladiolus in tropical Africa . 6-7: 7: Chromosome number in Tetraploid Gladiolus? - Image Code: GLDCM-11. in Bulgaria the family is represented by four genera: Romulea is monotypic, while the genus Iris consists of 10 species, Gladiolus of 5 species and Crocus of 9 species (27). Iridaceae: 3: Origin of Tetraploid Gladiolus? This is one of the leading commercial bulbous flowers throughout the world, and ranks next only to tulip in Holland and fourth in the international cut-flower trade after rose, carnation and chrysanthemum. However, chromosome duplication of somatic cells form additional copies of chromosome and existing genes but many variations occur after the chromosome doubling which leads to variations in plant phenotypes . accessions using morphological traits El Chaieb Emna 1* ... embryology and chromosome numbers (Raycheva, 2011). The Iridaceae is a large family with over 2000 species, many of which are endemic to South Africa and produce attractive flowers and foliage (Ascough, 2011). 0000001233 00000 n having doubled chromosomes will be powerful materials for gladiolus breeding. 0000004849 00000 n You are currently offline. The genus Gladiolus contains species and varieties differing greatly in chromosome number. 0000003591 00000 n Subtropical and temperate: 10 0000002538 00000 n Gladiolus L. belongs to the family Iridaceae. Key words: Micronutrients, gladiolus, boron, zinc, manganese and vase life. 529-531 ISSN 0972-5210 Introduction Gladiolus (Gladiolus grandiflorus L.) is a bulbous ornamental plant, which belongs to family Iridiaceae. Ploidy in the genus ranges from diploid (2n=30) to dodecaploid (2n=180) DNA ploidy levels: tetraploid (4x), hexaploid (6x), octoploid (8x), nonaploid (9x) and duodecaploid (12x). Gladiolus is a popular flowering plant grown all over the world, from South Africa to West Asia. 62 0 obj <>stream The magnificent inflorescence of Gladiolus with its attractive spike, florets Gladiolus. Gladiolus communis s.l. In the international cut-flower trade gladiolus occupies fourth place (Bhattacharjee and De, 2010). Hybridization and polyploidy have been greatly responsible for the evolution of Gladiolus (Ohri and Khoshoo 1983). palustris) were used to study variability and relationships. Africa and Asia minor: 4: Origin of diploid Gladiolus? Representative specimens of the EuropeanGladiolus species (excl.G. Language: English Collection: USDA publications Permanent URL: endstream endobj 44 0 obj <>/Metadata 41 0 R/AcroForm 45 0 R/Pages 40 0 R/StructTreeRoot 39 0 R/Type/Catalog>> endobj 45 0 obj <>/Encoding<>>>>> endobj 46 0 obj <>/Font<>>>/Type/Page>> endobj 47 0 obj <> endobj 48 0 obj <> endobj 49 0 obj <> endobj 50 0 obj <> endobj 51 0 obj <> endobj 52 0 obj <> endobj 53 0 obj <>stream The buds appear almost unnoticed before the flowers emerge. There are three to six branches below the main flower spike. 2n=60: 9: Climate requirement? Gladiolus communis s.l. Basic chromosome number is n=15. Chromosome Number in the Progeny of Triploid Gladiolus with Special Reference to the Contribution of the Triploid. Studies on the Occurrence of Polyploidy and its Contribution to the Flower Plants Breeding. A plant regeneration system from callus and chromosome doubling by colchicine treatment was investigated in wild Gladiolus species. The basic chromosome number is x = 15, rang-ing from diploid (2n = 30) to hypododecaploid (2n = 180), (Bamford 1935; Ohri and Khoshoo 1983). Extent of genetic erosion, endangered species (like Gladiolus alatus var. xref 0000009198 00000 n Semantic Scholar extracted view of "CHROMOSOME NUMBER AND HYBRIDIZATION IN GLADIOLUS" by R. Bamford. Skip to search form Skip to main content > Semantic Scholar's Logo. Its ancestral chromosome number is 15 (Goldblatt et al., 1993). It is popularly known as sword lily. They do not usually exhibit higher yield as compared to their diploid parents. Basic chromosome number n=15 and ploidy level from diploid id 2n=12x=180 (Lewis et al., 1972). byzantinus has also escaped on Andrew Lawson to waste ground and roadsides The genus Gladiolus has a chromosome number of 2n=30 to 120. According to these studies, stomata characteristics may be a more reliable indicator of polyploids [37,38]. Some features of the site may not ⦠Although chromosome analysis is a more direct way to verify ploidy level, ... Stomata of tetraploid Gladiolus grandiflorus had increased length and width but decreased density . H��WKS�8��W��l���a��I�Zbn{FI�:v�v� �~�n l���?����[��������0���콯�=�̛���m. the systematics and phylogeny within the family is still subject of debates. Four hundred and sixty plants were obtained from several triploid Gladiolus (3n = 45), when these were used as seed parents in crosses with diploids and tetraploids. 2n=30: 8: Chromosome number in diploid Gladiolus? 0000005054 00000 n : IX. Bulb characteristics appear to be very useful for indentification. The main hybrid groups have been obtained by crossing between four or five species, followed by selection: 'Grandiflorus', 'Primulines' and 'Nanus'. 1â3). %%EOF 43 20 Key words Micronutrients, gladiolus, boron, zinc, iron Treatment Details and corm T1 Control (RDF) T2 ZnSO4 @ 0.5 % Gladiolus (Gladiolus grandiflorus L.) is a bulbous ornamental plant, which belongs to family Iridiaceae. 0000010663 00000 n Its long, slightly pleated deep green leaves provide a lush foil to the white flowers with a chocolate throat; these flowers also have a delicate perfume. 0 The resulting callus was classified as two types - a friable type induced by BA and a compact type induced by 2,4-D. Plant Archives Vol. The modern hybrids designated as Gladiolus is popularly known as Queen of bulbous x�b```e``6c`a`�2b�c@ >�+sP`س�O�`7�MϺ@���{�,28��g�7�����S�|��\ �ρ�#��00� Q� VP� $�2/`^��������ىyS��L&uf�^s�p_��̫"���:��*�wNif����֫30?� Ҍ@� �b`� �` .~
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