Synchronism between adventitious root and leaf development in hydroponic sorghum

Chantereau, J. and Goislot, K. and Albaric, L. and et al, . (2012) Synchronism between adventitious root and leaf development in hydroponic sorghum. Journal of SAT Agricultural Research, 10. pp. 1-5.

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Plant studies rarely investigate how vegetative development and root development affect each other. Better characterization of this relation is a key point in understanding how plants adapt to diverse environmental conditions. The difficulty is that roots are not directly accessible in the natural environment and the traditional methods used to study roots are difficult, destructive and time consuming. As a result, the acquired information is generally limited to root biomass or length distribution in the soil. Hydroponic culture methods could be a way of more easily gaining information on root characteristics and growth. They allow the rooting potential of plants to be expressed and the genetics of root traits to be investigated as done by Tuberosa et al. (2002). Blum et al. (1977a, 1977b) used them to study the effect of maturity genes and heterosis on the sorghum (Sorghum bicolor) root system. They carried out interesting observations on the appearance of adventitious roots, which are produced in sequence in concentric whorls with a lag between whorl initiation events in juvenile sorghum plants. They thus defined the concept of the root plastochron and noted that it appeared constant over the experimental period (limited to 38 days after germination).

Item Type: Article
Author Affiliation: CIRAD, UMR Amélioration Génétique et Adaptation des Plantes, F-34398 Montpellier, France
Subjects: Crop Improvement
Divisions: Sorghum
Depositing User: Mr Siva Shankar
Date Deposited: 03 Dec 2012 09:19
Last Modified: 03 Dec 2012 09:19
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