Effects of Various Synthetic Sucrose Esters on Weed Seed Germination and Crop Growth:  Structure−Activity and Dose−Response Relationships

1997 ◽  
Vol 45 (12) ◽  
pp. 4833-4837 ◽  
Author(s):  
Joseph K. Peterson ◽  
Howard F. Harrison, ◽  
Orestes T. Chortyk
Keyword(s):  
Seed Germination ◽  
Dose Response ◽  
Crop Growth ◽  
Sucrose Esters ◽  
Weed Seed ◽  
Growth Structure ◽  
Structure Activity

Effect of hypoxia on buried weed seed germination

Weed Research ◽  
1995 ◽  
Vol 35 (5) ◽  
pp. 343-351 ◽  
Author(s):  
S. BENVENUTI ◽  
M. MACCHIA
Keyword(s):  
Seed Germination ◽  
Weed Seed

Combine Harvesting Affects Weed Seed Germination

1988 ◽  
Vol 2 (4) ◽  
pp. 499-504 ◽  
Author(s):  
Randall S. Currie ◽  
Thomas F. Peeper
Keyword(s):  
Seed Germination ◽  
Winter Wheat ◽  
Weed Seed ◽  
Weed Species ◽  
Hard Red Winter Wheat ◽  
Small Plot ◽  
Red Winter Wheat ◽  
Grain Bins ◽  
Better Than

Seed of three weed species collected from the grain bins of combines while standing hard red winter wheat was harvested germinated better than hand-harvested seed. Combine-harvested curly dock seed germinated from 4 to 24% more than hand-harvested seed. Curly dock seed harvested with a commercial-type combine germinated better than those harvested with a small-plot combine. Harvesting slimleaf lambsquarters and Venice mallow seed with a commercial-type combine also enhanced germination compared to hand-harvested seed.

scholarly journals Synthesis and In Vitro Antibacterial Activity of Quaternized 10-Methoxycanthin-6-one Derivatives

Molecules ◽  
2019 ◽  
Vol 24 (8) ◽  
pp. 1553 ◽  
Author(s):  
Na Li ◽  
Dan Liu ◽  
Jiang-Kun Dai ◽  
Jin-Yi Wang ◽  
Jun-Ru Wang
Keyword(s):  
Antibacterial Activity ◽  
Seed Germination ◽  
Pathogenic Bacteria ◽  
Dilution Method ◽  
Highly Active ◽  
Structure Activity ◽  
In Vitro Antibacterial Activity ◽  
Potential Activity ◽  
Low Cytotoxicity

Background: Based on our previous work, we found that 10-methoxycanthin-6-one displayed potential antibacterial activity and quaternization was an available method for increasing the antibacterial activity. Here, we explored the antibacterial activity of quaternized 10-methoxy canthin-6-one derivatives. Methods and Results: Twenty-two new 3-N-benzylated 10-methoxy canthin-6-ones were designed and synthesized through quaternization reaction. The in vitro antibacterial activity against three bacteria was evaluated by the double dilution method. Moreover, the structure–activity relationships (SARs) were carefully summarized in order to guide the development of antibacterial canthin-6-one agents. Two highly active compounds (6p and 6t) displayed 8-fold superiority (MIC = 3.91 µg/mL) against agricultural pathogenic bacteria R. solanacearum and P. syringae compared to agrochemical streptomycin sulfate, and showed potential activity against B. cereus. Moreover, these two compounds exhibited good “drug-like” properties, low cytotoxicity, and no inhibition on seed germination. Conclusions: This work provides two new effective quaternized canthin-6-one derivatives as candidate bactericide, promoting the development of natural-sourced bactericides and preservatives.

Dose Response and Structure-Activity Considerations in Retinoid-Induced Dysmorphogenesis

1989 ◽  
Vol 20 (2) ◽  
pp. 113-135 ◽  
Author(s):  
Calvin C. Willhite ◽  
Patrick J. Wier ◽  
David L Berry
Keyword(s):  
Dose Response ◽  
Structure Activity
Sign in / Sign up

Export Citation Format

Share Document