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  • 1
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Physiologia plantarum 51 (1981), S. 0 
    ISSN: 1399-3054
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: Decapitation of the primary roots of Pisum sativum L. resulted in a significant increase in the initiation of lateral root primordia within 12 h of the surgical treatment. Although this increase occurred both in the light and in the dark, lateral root initiation and development was much more rapid in the dark. The formation of lateral root primordia was accompanied by increased levels of endogenous cytokinins suggesting that newly formed root primordia start producing cytokinins very soon after being initiated. The significance of the present results in terms of possible sites of synthesis in vegetative tissue is discussed.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1573-5044
    Keywords: Dioscorea bulbifera ; yam ; tissue culture ; multiple shoot formation ; diosgenin
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Nodal stem segments ofDioscorea bulbifera were induced to form plantlets in vitro. Rooted plantlets were obtained on Murashige-Skoog [14] revised medium supplemented initially with 5 mg 1−1 kinetin and subsequently with 5 mg l−1 indole-butyric acid. By increasing the kinetin concentration from 5 mg l−1 to 10 mg l−1, the number of shoots forming per node was increased from five to eight. When kinetin was substituted with 6-benzylaminopurine at only 1 mg l−1, nine shoots formed on each node. Each shoot could be excised from the node and induced to form a new crop of multiple shoots. Rooted plantlets could be successfully transferred to in vivo conditions.
    Type of Medium: Electronic Resource
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