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| Ricinus communis L. | | 79-81 | | |
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| Ricinus communis L. | Li, M. x. 1987. Karyotype analysis of some oil plants. Acta Bot. Boreal.-Occid. Sin. 7: 246–251. | 86-87 | | 20 |
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| Ricinus communis L. | Gill, B. S., S. S. Bir & V. K. Singhal. 1981. Cytomorphological studies in north Indian pomegranate (Punica granatum Linn.). J. Cytol. Genet. 16: 35–45. | 82-83 | 10 | |
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| Ricinus communis L. | Sidhu, M. & S. S. Bir. 1983. Karyological studies on weeds on cultivable lands in Punjab, India. Trop. Plant Sci. Res. 1: 1–13. | 84-85 | | 20 |
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| Ricinus communis L. | Ge, C. j. & Y. k. Li. 1989. Observation on the chromosome numbers of medicinal plants of Shandong Province (II). Chin. Traditional Herbal Drugs 20(6): 34–35. | 88-89 | | 20 |
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| Ricinus communis L. | Sandhu, P. S. & S. K. Mann. 1988. SOCGI plant chromosome number reports -- VII. J. Cytol. Genet. 23: 219–228. | 88-89 | 10 | |
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| Ricinus communis L. | Lentini, F., S. Romano & F. M. Raimondo. 1988. Numeri cromosomici per la flora Italiana: 1185--1196. Inform. Bot. Ital. 20: 637–646. | 92-93 | | 20 |
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| Ricinus communis L. | Murín, A. 1993. Karyologické atúdium okrasn@3ych rastlín flóry Slovenska. Biologia (Bratislava) 48: 441–445. | 92-93 | | 20 |
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| Ricinus communis L. | Cheng, Y. c., B. k. Liu, Z. s. Jiang & Y. c. Duan. 1991. Observations of chromosome numbers of several medical plants. J. Hunan Agric. Coll. 11(2): 166–170. | 94-95 | | 20 |
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| Ricinus communis L. | Slavĭk, B., V. Jarolĭmovă & J. Chrtek. 1993. Chromosome counts of some plants from Cyprus. Candollea 48(1): 221–230. | 94-95 | | 20 |
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| Ricinus communis L. | Soontornchainaksaeng, P. & K. Chaiyasut. 1999. Cytogenetic investigation of some Euphorbiaceae in Thailand. Cytologia 64: 229–234. | 98-00 | 10 | |
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| Ricinus communis L. | Sidhu, M. K. 1979. Distributional and cytological studies of the weed flora of cultivable fields of Patiala district (Panjab). Ph.D. Thesis, Patiala. 1-230. 1979. | 79-81 | | 20 |
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| Ricinus communis L. | Bir, S. S. & M. Sidhu. 1980. Cyto-palynological studies on weed flora of cultivable lands of Patiala district (Punjab). J. Palynol. 16: 85–105. | 79-81 | 10 | 10 |
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| Ricinus communis L. | Jelenkovic, G., O. Shifriss & E. Harrington. 1980. Association and distribution of meiotic chromosomes in a haploid of Ricinus communis L. Cytologia 45: 571–577. | 79-81 | 10 | 20 |
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| Ricinus communis L. | Bir, S. S. & M. Sidhu. 1979. Cytological observations in weed fiora of orchards of Paticla district, Punjab. Recent Res. Pl. Sci. (New Delhi). 7: 261–271. | 79-81 | 10 | 20 |
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| Ricinus communis L. | Mehra, P. N. 1976. Cytology of Himalayan Hardwoods. Sree Saraswaty Press, Calcutta. | | 10 | |
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| Ricinus communis L. | Queiros, M. 1975. Contribuicao para o conhecimento citotaxonomico das Spermatophyta de Portugal. XI. Euphorbiaceae. Bol. Soc. Brot., sér. 2 49: 143–161. | | | 20 |
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| Ricinus communis L. | Sharma, A. K. 1970. Annual report, 1967-1968. Res. Bull. Univ. Calcutta Cytogenetics Lab. 2: 1–50. | | | 20 |
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| Ricinus communis L. | Vachova, M. 1974. In Index to chromosome numbers of Slovakian flora. Part 4. Acta Fac. Rerum Nat. Univ. Comenianae, Bot. 23: 1–23. | | | 20 |
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