Weed Science

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Herbicidal activity of eight isothiocyanates on Texas panicum (Panicum texanum), large crabgrass (Digitaria sanguinalis), and sicklepod (Senna obtusifolia)
Weed Science - Tập 53 Số 4 - Trang 515-520 - 2005
Jason K. Norsworthy, John T. Meehan
A greenhouse experiment was conducted to evaluate the herbicidal activity of five aliphatic (ethyl, propyl, butyl, allyl, and 3-methylthiopropyl) and three aromatic (phenyl, benzyl, 2-phenylethyl) isothiocyanates on Texas panicum, large crabgrass, and sicklepod. All isothiocyanates were applied to soil at 0, 10, 100, 1,000, and 10,000 nmol g−1of soil and incorporated. ...... hiện toàn bộ
Inhibition of Velvetleaf (Abutilon theophrasti) Germination and Growth by Benzyl Isothiocyanate, a Natural Toxicant
Weed Science - Tập 32 Số 5 - Trang 612-615 - 1984
Rebecca B. Wolf, Gayland F. Spencer, W. F. Kwolek
Benzyl isothiocyanate (BITC) was extracted from mature papaya (Carica papayaL.) seeds and applied to imbibed velvetleaf (Abutilon theophrastiMedic. ♯3ABUTH) seeds. Complete inhibition of germination occurred at a concentration of 6 × 10-4M BITC, and only 28% (compared to controls) of the seeds g...... hiện toàn bộ
Relationship between temperature and the early growth ofTriticum aestivumand three weed species
Weed Science - Tập 48 Số 4 - Trang 467-473 - 2000
Jonathan Storkey, J. Cussans
Regional Mapping of Perennial Weeds in Cotton with the Use of Geostatistics
Weed Science - Tập 60 Số 2 - Trang 233-243 - 2012
Dionissios Kalivas, Christos Vlachos, Garifalia Economou, Paraskevi Dimou
Perennial weeds constitute a serious problem in Greek cotton-growing areas, as they strongly competing against the crop and downgrade the final product. Monitoring weeds at a regional scale and relating their occurrence with abiotic factors will assist in the control of these species. Purple nutsedge, field bindweed, bermudagrass, and johnsongrass were studied in cotton crops for three con...... hiện toàn bộ
Weed Survey System used in Saskatchewan for Cereal and Oilseed Crops
Weed Science - Tập 33 Số 1 - Trang 34-43 - 1985
A. Gordon Thomas
A weed survey system methodology was developed and used annually for 4 yr in the province of Saskatchewan. Based on a stratified random sampling procedure, fields were selected in wheat (Triticum aestivumL.), barley (Hordeum vulgareL.), oat (Avena sativaL.), rye (Secale cerealeL.), r...... hiện toàn bộ
Biochemical Basis for Plant Competition
Weed Science - Tập 17 Số 3 - Trang 338-344 - 1969
Clanton C. Black, T.M. Chen, R. H. Brown
A survey has been made of the literature on biochemical characteristics of plants with particular emphasis on factors affecting photosynthesis. From these characteristics, plants have been divided into two groups, efficient and non-efficient. This division is justified on the basis of data published by numerous workers. A hypothesis has been developed that efficient plants often have been ...... hiện toàn bộ
Physiological Response of Different Croftonweed (Eupatorium Adenophorum) Populations to Low Temperature
Weed Science - Tập 56 Số 2 - Trang 196-202 - 2008
Hui Li, Sheng Qiang, Yaling Qian
Effects of Field Applications of Nitrate on Weed Seed Germination and Dormancy
Weed Science - Tập 26 Số 6 - Trang 594-596 - 1978
R. S. Fawcett, F. W. Slife
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...... hiện toàn bộ
Seedling recruitment pattern and depth of recruitment of 10 weed species in minimum tillage and no-till seeding systems
Weed Science - Tập 54 Số 4 - Trang 658-668 - 2006
Bhagirath Singh Chauhan, Gurjeet Gill, Christopher Preston
Differences in periodicity and depth of weed seedling recruitment due to agronomic management practices, such as reduced tillage, have implications for weed competitive ability and management strategies. Periodicity and depth of seedling recruitment of 10 different weed species was measured in the field in 2004 and 2005. The seedling recruitment of rigid ryegrass, threehorn bedstraw, and w...... hiện toàn bộ
Using Assembly Theory to Explain Changes in a Weed Flora in Response to Agricultural Intensification
Weed Science - Tập 58 Số 1 - Trang 39-46 - 2010
Jonathan Storkey, S. R. Moss, J. Cussans
The intensification of crop management in the U.K. over the past 60 years has resulted in the decline of the populations of a number of annual plant species adapted to arable habitats. In contrast, other species continue to be common as arable weeds. A community assembly approach was taken to explain these recent changes in the weed flora using databases of plant functional traits, a pot e...... hiện toàn bộ
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