scholarly journals Complex Regulation of Chenopodium album Seed Germination

2013 ◽  
Vol 1 (6) ◽  
pp. 133-142 ◽  
Author(s):  
Lindsey M. Altenhofen ◽  
Jack Dekker
Keyword(s):  
Seed Germination ◽  
Chenopodium Album ◽  
Complex Regulation

Some Germination Characteristics in Common Lambsquarters(Chenopodium album)

Weed Science ◽  
1978 ◽  
Vol 26 (3) ◽  
pp. 255-258 ◽  
Author(s):  
Chang-Chi Chu ◽  
R. D. Sweet ◽  
J. L. Ozbun
Keyword(s):  
Seed Germination ◽  
Seed Size ◽  
Chenopodium Album ◽  
Common Lambsquarters ◽  
Black Seed ◽  
Germination Characteristics

Germination of fruit of common lambsquarters(Chenopodium albumL.) from three out of four sources was enhanced by 9 to 41% by removal of the fruit coat, and by 21% by washing the fruit for 70 h. Brown-black seed germinated more rapidly than the black and brown seed after washing for 70 h. The washing treatment appeared to remove some unknown inhibitors. After washing, seed germination was found to be positively correlated with seed size.

Modeling germination and seedling elongation of common lambsquarters (Chenopodium album)

Weed Science ◽  
1999 ◽  
Vol 47 (2) ◽  
pp. 149-155 ◽  
Author(s):  
Erivelton S. Roman ◽  
A. Gordon Thomas ◽  
Stephen D. Murphy ◽  
Clarence J. Swanton
Keyword(s):  
Seed Germination ◽  
Water Potential ◽  
Mechanistic Model ◽  
Chenopodium Album ◽  
Seedling Emergence ◽  
Probit Analysis ◽  
Hydrothermal Time ◽  
Time Model ◽  
Common Lambsquarters ◽  
Radicle Elongation

The ability to predict time of weed seedling emergence relative to the crop is an important component of a mechanistic model describing weed and crop competition. In this paper, we hypothesized that the process of germination could be described by the interaction of temperature and water potential and that the rate of seedling shoot and radicle elongation vary as a function of temperature. To test these hypotheses, incubator studies were conducted using seeds and seedlings of common lambsquarters. Probit analysis was used to account for variation in cardinal temperatures and base water potentials and to develop parameters for a new mathematical model that describes seed germination and shoot and radicle elongation in terms of hydrothermal time and temperature, respectively. This hydrothermal time model describes the phenology of seed germination using a single curve, generated from the relationship of temperature and water potential.

The effect of humic substances on germination and early growth of Lamb’s Quarters (Chenopodium album agg.)

Biologia ◽  
2011 ◽  
Vol 66 (3) ◽  
Author(s):  
Božena Šerá ◽  
František Novák
Keyword(s):  
Seed Germination ◽  
Humic Substances ◽  
Seed Development ◽  
Initial Phase ◽  
Chenopodium Album ◽  
Early Growth ◽  
Germination Test ◽  
Diverse Origin ◽  
Lamb’S Quarters ◽  
Germination And Growth

AbstractIn order to understand the biological activity of humic substances (HS), the effect of four humic acids (HA) and one fulvic acid (FA) on seed germination and early growth of cosmopolitan weed Chenopodium album agg. were tested. Humic substances of diverse origin were used, namely purified commercial HA, HA isolated from lignite, cambisol and podzol, and FA from mountain spruce forest soil. Data processing by two-way ANOVA has shown that type of the tested substances was a more important factor on seed development than used concentration. The major differences in germination and length of shoots were found in the first days of the experiment. Commercial and lignite HA stimulated the seed germination and growth, while podzol HA inhibited them. After this initial phase, all humic substances stimulated the seed development, but these stimulations were not significant (P < 0.05). At the end of germination test, the greatest stimulation effect (up to 20%) was achieved with the lignite HA.

Does Cold Plasma Affect Breaking Dormancy and Seed Germination? A Study on Seeds of Lamb's Quarters (Chenopodium album agg.)

2009 ◽  
Vol 11 (6) ◽  
pp. 750-754 ◽  
Author(s):  
Božena Šerá ◽  
Michal Šerý ◽  
Vitězslav Štrañák ◽  
Petr Špatenka ◽  
Milan tichý
Keyword(s):  
Seed Germination ◽  
Cold Plasma ◽  
Chenopodium Album ◽  
Breaking Dormancy ◽  
Lamb’S Quarters

Effects of Field Applications of Nitrate on Weed Seed Germination and Dormancy

Weed Science ◽  
1978 ◽  
Vol 26 (6) ◽  
pp. 594-596 ◽  
Author(s):  
R. S. Fawcett ◽  
F. W. Slife
Keyword(s):  
Seed Germination ◽  
Nitrogen Fertilization ◽  
Nitrate Concentration ◽  
Chenopodium Album ◽  
Datura Stramonium ◽  
Amaranthus Retroflexus ◽  
Common Lambsquarters ◽  
Setaria Faberi ◽  
Giant Foxtail ◽  
Population Numbers

Application of 112 to 336 kg/ha N as ammonium nitrate [NH4(NO−3)] failed to affect population numbers of common lambsquarters(Chenopodium albumL.), giant foxtail(Setaria faberiHerrm.), velvetleaf(Abutilon theophrastiMedic.), jimsonweed(Datura stramoniumL.), or redroot pigweed(Amaranthus retroflexusL.). Common lambsquarters seeds harvested from NO−3-treated plots were less dormant than control seeds. Seed germination in the laboratory increased from 3.0% for control seeds to 34.0% for seeds harvested from plots treated with 280 kg/ha N as NH4(NO−3). Nitrate concentration in common lambsquarters seeds increased as nitrogen fertilization increased. Seeds from nonfertilized plots contained 18.7 μg/g NO−3, while seeds from plots fertilized with 280 kg/ha N contained 126.3 μg/g. Adding exogenous NO−3to the germination medium brought the germination of most seed lots to a similar level, except for control seeds which germinated at a lower rate. In contrast to common lambsquarters, nitrogen fertilization did not greatly affect dormancy or NO−3accumulation in velvetleaf seeds. Exogenous NO−3failed to stimulate velvetleaf germination because dormant velvetleaf seeds did not imbibe.

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