COLEORHIZA, ROOT AND COLEOPTILE EMERGENCE AND GROWTH: EFFECTS OF DIFFERENT WATER VOLUMES

@article{Davidson1979COLEORHIZARA,
  title={COLEORHIZA, ROOT AND COLEOPTILE EMERGENCE AND GROWTH: EFFECTS OF DIFFERENT WATER VOLUMES},
  author={D. Davidson},
  journal={Canadian Journal of Plant Science},
  year={1979},
  volume={59},
  pages={61-67}
}
  • D. Davidson
  • Published 1979
  • Biology
  • Canadian Journal of Plant Science
The percentage of barley seeds (Hordeum vulgare) with coleorhiza or roots emerged at various times after germination in different volumes of water was determined. Germination was followed in barley seeds sown on filter papers moistened with 6–25 ml of water for up to 24 h at 25 °C; 30 seeds were sown on each 15-cm diameter petri plate. The most rapid germination, judged on coleorhiza emergence, occurred on 20 and 25 ml of water at 6 h, but root emergence was better on 9 than on 20 ml of water… Expand
MORPHOLOGY OF THE PERENNIAL RYEGRASS (LOLIUM PERENNE; POACEAE) COLEORHIZA AND EMERGING RADICLE WITH CONTINUOUS OR
TLDR
The results suggest that the coleorhiza may be an expendable tissue during germination, as its likely protective and absorptive roles are lost following a single harsh dehydration event. Expand
Anatomical and Transcriptomic Studies of the Coleorhiza Reveal the Importance of This Tissue in Regulating Dormancy in Barley1[W]
TLDR
It is proposed that the coleorhiza plays a major role in causing dormancy by acting as a barrier to root emergence and that after-ripening potentiates molecular changes related to ABA metabolism and sensitivity that ultimately lead to degradation of thecoleorHiza, root emergence, and germination. Expand
QTL mapping of coleorhiza length in maize (Zea mays L.) under two germination environmental conditions
TLDR
This study aimed to identify the genetic factors controlling the length of coleorhiza during seed germination based on a population of recombinant inbred lines (RILs) derived from Xinzi517 × B73. Expand
Variability of breeding system, caryopsis microstructure and germination in annual and perennial species of the genus Brachypodium P. Beauv.
TLDR
Both extremes in terms of dormancy, i.e. B. distachyon and B. sylvaticum appeared to be extremes with respect to dormancy and germination behaviour, revealed inter- and intrapopulational variability of germination. Expand
Distribution of Chromosomes into Discrete Groups in Colchicine-Induced C-Metaphases of Barley
TLDR
The pattern of distribution of the diploid complement of 14 chromosomes has been determined and was not random: 7:7 distributions were relatively infrequent but 6:8 or 4:10 distributions occurred in high frequencies. Expand

References

SHOWING 1-10 OF 10 REFERENCES
Water uptake during germination of barley
TLDR
The amount of water taken up by germinating barley seeds in the first 10 h after sowing is determined and it is shown that inhibition of germination is not due entirely to an increased uptake of water. Expand
The Effect of Soil Water and Aeration on Seed Germination
The time rate of germination and the final germination percentage of Oryzopsis holciformis decreased with increasing water stress. The optimum matric potential for germination was — 0-005 bar inExpand
Embryogenesis and germination in rye (Secale cereale L.)
TLDR
R rye embryos imbibe water they rapidly return to a condition of biochemical and structural complexity, and the large increase in protein synthesis occurs on new ribosomes present on the reticulum associated with the nuclear membrane. Expand
STUDIES IN BARLEY AND MALT: I. EFFECTS OF WATER ON GERMINATION TESTS
TLDR
The effects of varying the amount of water available to the corns during germination tests have been examined and it has been found that this factor profoundly influences the final percentage germination. Expand
Glucose Metabolism and Retention of Glucose Metabolites in the Wheat Embryo during Early Germination.
There is a lag period in the growth of excised wheat (Triticum vulgare Host.) embryos extending from 0.5 hour to 4.5 hours of their imbibition in water. During this time there is a sharp increase inExpand
STUDIES IN BARLEY AND MALT: XI. STEEPING IN RELATION TO WATER‐SENSITIVITY IN MALTING BARLEYS
Where water-sensitivity exists in barley, its adverse effects on germination are avoided by steeping the grain for from 8 to 16 hr., thereafter exposing it freely to air for 12–24 hr., and thenExpand
WATER‐SENSITIVITY IN BARLEY I. RESPIRATION STUDIES AND THE INFLUENCE OF OXYGEN AVAILABILITY
TLDR
The embryos of water-sensitive barleys germinate to a lesser degree than those of fully mature barleys at low oxygen tension, and water-sensitivity appears to be a reflection of a higher oxygen requirement for germination by the embryo. Expand
Seed germination and the capacity for protein synthesis.
  • A. Marcus
  • Chemistry, Medicine
  • Symposia of the Society for Experimental Biology
  • 1969