Zobrazeno 1 - 10
of 21
pro vyhledávání: '"S. E. Weaver"'
Autor:
S. E. Weaver, M. P. Downs
Publikováno v:
Canadian Journal of Plant Science. 83:619-628
Lactuca serriola (prickly lettuce, compass plant) is a winter or summer annual, introduced to Canada from Eurasia, and found in all provinces except Newfoundland. It occupies a variety of disturbed sites, and is becoming an increasing problem in crop
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::05ad51865be51f559c8178b8574ee56b
https://doi.org/10.4141/p02-059
https://doi.org/10.4141/p02-059
Autor:
J. A. Ivany, S. E. Weaver
Publikováno v:
Canadian Journal of Plant Science. 78:357-361
The yield response of spring barley (Hordeum vulgare L. 'Morrison') to a range of densities of wild radish (Raphanus raphanistrum L.), wild oat (Avena fatua L.), hemp-nettle (Galeopsis tetrahit L.), and corn spurry (Spergula arvensis L.) was investig
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::461f10074f7098f08bd860bd0a24763c
https://doi.org/10.4141/p97-072
https://doi.org/10.4141/p97-072
Autor:
C. S. Tan, S. E. Weaver
Publikováno v:
Canadian Journal of Plant Science. 77:261-265
Greenhouse and growth room experiments were conducted to determine the effects of shading and water stress on transpiration of eastern black nightshade (Solanum ptycanthum) and hairy nightshade (S. sarrachoides). Transpiration rates were estimated us
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::32e50a4b255ff7046880ed4851e0ac24
https://doi.org/10.4141/p96-068
https://doi.org/10.4141/p96-068
Variability in metribuzin tolerance among ruderal and agrestal populations of Solanum ptycanthum Dun
Autor:
S. E. Weaver, L. A. Hermanutz
Publikováno v:
Canadian Journal of Plant Science. 74:395-401
Solanum ptycanthum Dun. is an annual weed of both agrestal and ruderal habitats in southern Ontario, which is the northern limit of its distribution. Plants of S. ptycanthum are introduced annually to the tomato-production areas of Ontario via the im
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3caea6e3147ea2029cd442b3cb079d29
https://doi.org/10.4141/cjps94-075
https://doi.org/10.4141/cjps94-075
Publikováno v:
Annals of Applied Biology. 120:339-351
Summary The growth and development of field-grown Avena fatua plants were studied for autumn and spring sowings in two consecutive years. The duration of various growth stages from sowing until anthesis was quantified in terms of thermal time (accumu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e8a95edd863ab10941ab3bb371cc5e74
https://doi.org/10.1111/j.1744-7348.1992.tb03430.x
https://doi.org/10.1111/j.1744-7348.1992.tb03430.x
Publikováno v:
The Journal of Agricultural Science. 118:149-156
SUMMARYWinter barley cv. Igri, winter wheat cv. Avalon and spring wild oats (Avena fatua) were studied in monocultures in pots and in the field. The field experiments were located near Bristol and Bury St Edmunds in 1988/89. Pot sowings were monthly,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5ee90391c4cf76c349bcb1a6cfcbe195
https://doi.org/10.1017/s0021859600068726
https://doi.org/10.1017/s0021859600068726
Autor:
S. E. Weaver, L. A. Hermanutz
Publikováno v:
Canadian Journal of Botany. 69:1463-1470
The colonization potential of the northwardly migrating weed Solanum ptycanthum was evaluated by comparing germination profiles of southern agrestal populations with northern marginal populations sampled from both ruderal and agrestal habitats. Under
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4ac0d785edd36269bf4e0a3372d3a17e
https://doi.org/10.1139/b91-189
https://doi.org/10.1139/b91-189
Autor:
S. E. Weaver, L. A. Hermanutz
Publikováno v:
Canadian Journal of Plant Science. 71:167-174
The distribution and abundance of hairy nightshade (Solanum sarrachoides Sendt.) has been increasing relative to that of eastern black nightshade (Solanum ptycanthum Dun.) in cultivated fields in southern Ontario. The germination and early growth of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b2d3d6d215e298732a97fb4eb1c10ec7
https://doi.org/10.4141/cjps91-017
https://doi.org/10.4141/cjps91-017
Publikováno v:
Annals of Applied Biology 126 (1995)
Annals of Applied Biology, 126, 329-346
Annals of Applied Biology, 126, 329-346
SUMMARY The recently introduced empirical model for early prediction of crop loss by weed competition based on the relative leaf area of the weeds shortly after crop emergence (Kropff & Spitters, 1991), assumes a maximum yield loss of 100% at high we
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c992299d19bb48f98b8f3ad9ffb8f9e5
https://research.wur.nl/en/publications/a-two-parameter-model-for-prediction-of-crop-loss-by-weed-competi
https://research.wur.nl/en/publications/a-two-parameter-model-for-prediction-of-crop-loss-by-weed-competi
Publikováno v:
Annals of Applied Biology 124 (1994)
Annals of Applied Biology, 124, 315-331
Annals of Applied Biology, 124, 315-331
An eco‐physiological simulation model of competition between A vena fatua and winter wheat (Triticum aestivum cv. Avalon) for light was parameterised and tested. The model simulates growth of each species, in kg dry matter ha“1day‐1, from sowin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::01bd0c20e5061ca8e07adb05dfaf5344
https://research.wur.nl/en/publications/a-simulation-model-of-competition-between-winter-wheat-and-avena-
https://research.wur.nl/en/publications/a-simulation-model-of-competition-between-winter-wheat-and-avena-