Effect of light and density on yellow starthistle (Centaurea solstitialis) root growth and soil moisture use

Weed Science ◽  
2003 ◽  
Vol 51 (3) ◽  
pp. 334-341 ◽  
Author(s):  
Joseph M. DiTomaso ◽  
Guy B. Kyser ◽  
Carri B. Pirosko
Keyword(s):  
Soil Moisture ◽  
Root Growth ◽  
Centaurea Solstitialis ◽  
Yellow Starthistle ◽  
Effect Of Light

scholarly journals The Role of Light and Soil Moisture in Plant Community Resistance to Invasion by Yellow Starthistle (Centaurea solstitialis)

2010 ◽  
Vol 19 (5) ◽  
pp. 599-606 ◽  
Author(s):  
Stephen L. Young ◽  
Guy B. Kyser ◽  
Jacob N. Barney ◽  
Victor P. Claassen ◽  
Joseph M. DiTomaso
Keyword(s):  
Soil Moisture ◽  
Plant Community ◽  
Centaurea Solstitialis ◽  
Yellow Starthistle ◽  
Community Resistance ◽  
Resistance To Invasion ◽  
Role Of Light

scholarly journals Factors Affecting Infection of Yellow Starthistle (Centaurea solstitialis) by Synchytrium solstitiale, Causal Agent of False Rust Disease

Plant Disease ◽  
2006 ◽  
Vol 90 (4) ◽  
pp. 425-428 ◽  
Author(s):  
T. L. Widmer ◽  
F. Guermache
Keyword(s):  
United States ◽  
Classical Biological Control ◽  
The United States ◽  
Carthamus Tinctorius ◽  
Centaurea Solstitialis ◽  
Yellow Starthistle ◽  
Rust Disease ◽  
Invasive Weed ◽  
Factors Affecting ◽  
Centaurea Calcitrapa

Yellow starthistle (Centaurea solstitialis) is an annual invasive weed in the United States with Mediterranean origins. The expense of chemical control and the vast area of invasion make this weed an appropriate target for classical biological control. Observations of a field site in southern France revealed small orange galls on the leaves of yellow starthistle seedlings caused by the fungus Synchytrium solstitiale. Inoculation of yellow starthistle seedlings with a suspension of zoospores released from infected tissue resulted in infection. Ten days after inoculation, typical orange galls appeared on the exposed tissue. Preliminary host range testing showed up to 100% infection of C. solstitialis seedlings from both France and the United States and infection of Carthamus tinctorius, Centaurea americana, C. diffusa, C. rothrockii, C. squarrosa, and Helianthus annuus seedlings. No symptoms were observed on seedlings of Centaurea calcitrapa, C. maculosa, C. sulfurea, Cirsium californica, C. occidentale, Cynera cardunculus, and Taraxacum officinale. Zoospores were released in a pH range between 4.45 and 8.25 and optimally at temperatures between 5 and 15°C. Infection of yellow starthistle seedlings occurred after a minimum 1-h exposure to a zoospore suspension at 20°C.

Soybean (Glycine max (L) Merrill) Root Growth and Nodulation Responses to Different Soil Moisture Regimes

2019 ◽  
Vol 22 (2) ◽  
pp. 153-159
Author(s):  
Louis Hortensius Mwamlima ◽  
Josephine Pamela Ouma ◽  
Erick Kimutai Cheruiyot
Keyword(s):  
Soil Moisture ◽  
Glycine Max ◽  
Root Growth ◽  
Moisture Regimes ◽  
Glycine Max L
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