Colchicine

Mutagenic influences of colchicine on phenological and molecular diversity of Calendula officinalis L.

Y. I. El-Nashar, Ammar, M. H., El-Nashar, Y. I., Ammar, M. H., El-Nashar, Y. I., and Ammar, M. H., Mutagenic influences of colchicine on phenological and molecular diversity of Calendula officinalis L., vol. 15, p. -, 2016.

Six different colchicine concentrations: 0, 400, 800, 1200, 1600, and 2000 ppm, in combination with four soaking time treatments (1, 2, 3, and 4 h), were selected to assess the effects on germination, vegetative growth, and flower yield components in calendula plants. The molecular diversity among the treatments was assessed using ten SRAP marker combinations. Seed soaking in colchicine significantly enhanced both the fresh and the dry shoot and root masses, flowering date, number of flowers per plant, and flower diameter.

Induction and identification of Stylosanthes guianensis tetraploids

F. H. Wu, Yu, X. D., Zhuang, N. S., Liu, G. D., and Liu, J. P., Induction and identification of Stylosanthes guianensis tetraploids, vol. 14, pp. 12692-12698, 2015.

Stylosanthes guianensis is an elite and important forage legume species, which is extensively cultivated in tropical areas. Polyploid breeding via exposure to colchicine is a conventional and practical method to improve varieties of S. guianensis. Terminal buds of S. guianensis Reyan No.5 seedlings were treated with different concentrations of colchicine (0.00, 0.05, 0.10, 0.15, 0.20, and 0.25%) for 24, 48, and 72 h. Morphological and cytological variants were observed at a frequency of

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