Chemistry Reference
In-Depth Information
generation through the seed traits it becomes especially at seedling traits and weight loss
and mostly at the root system. This change is also at the chemical composition of the seeds.
This phenomenon is still neglected in the plant breeding.
7. Conclusion
Development of the roots took place after the relocation of the plants to the surface of the
Earth, i.e. long time before development of the seeds. The reason of the seeds development
in the later time is to preserve the species, spread species and survive in unfavorable
conditions (particularly by the development of dormancy). Importance of root traits for the
seed growth and development is very significant and these relationships exist also in oposite
direction - seed traits have influence on the root development. Seed quality is affected by
location of seed on mother plant, by environmental conditions and by storage conditions.
The roots are, from the physiological view the most sensitive part of the plant. The root
system has the role as control centre with rapid transmission information to other plant
parts (“plant brain”).
It is possible to provide selection for cultivar resistance to stress already at the seed
germination stage and on the quality of the plant root system. Quality of the embryonic
roots is important for the following growth and also roots development. In the juvenile
phase and in later stage, there is the same genotype! This is a general biological regularity in
nature.
It is also possible to evaluate characteristics of seeds and seedlings, i.e. make selection at this
developmental phase, after plant hybridization on the basis of the seed and seedlings traits
for the seed quality an also for the classic selection in the plant breeding.
Author details
Ladislav Bláha
Crop Research Institute, Division of Genetics and Plant Breeding, Prague, Czech Republic
Kateřina Pazderů
Czech University of Life Sciences, Department of Crop Production, Prague, Czech Republic
8. References
[1]
Alkio M; Diepenbrock W, Grimm E. Evidence for sectorial photoassimilate supply in
the capitulum of sunflower (Helianthus annuus) DEC Springer New Phytologist
2002;156 (3) 445-456.
[2]
Alpi A, et al. Plant neurobiology: no brain, no gain? Trends Plant Sci. 2007;(12):135-142
[3]
Angelovici R, Galili G, Fernie A, R, Fait, A. Seed desiccation: a bridge between
maturation and germination. Trends in plant science 2010 (4):211-218.
