Weed life history: identifying vulnerabilities - Ecological Management of Agricultural Weeds - page 94

Qi, M., Upadhyaya, M.K., & Turkington, R.(1996).Dynamics of seed bank and
survivorship of meadow salsify ( Tragopogon pratensis ) populations. Weed Science ,44,
100-8.
Rao,A.N., & Moody, K.(1990).Weed seed contamination in rice seed. Seed Science and
Technology ,18, 139-46.
Regnier, E.E., & Harrison, S.K.(1993).Compensatory responses of common cocklebur
( Xanthium strumarium ) and velvetleaf ( Abutilon theophrasti ) to partial shading. Weed
Science ,41, 541-7.
Regnier, E.E., & Stoller, E.W.(1989).The effects of soybean ( Glycine max ) interference on the
canopy architecture of common cocklebur ( Xanthium strumarium ), jimsonweed
( Datura stramonium ), and velvetleaf ( Abutilon theophrasti ). Weed Science ,37, 187-95.
Rew, L.J., & Cussans, G.W.(1997).Horizontal movement of seeds following tine and
plough cultivation: implications of spatial dynamics of weed infestations. Weed
Research ,37, 247-56.
Rew, L.J., Froud-Williams, R.J., & Boatman, N.D.(1996).Dispersal of Bromus sterilis and
Anthriscus sylvestris seed within arable field margins. Agriculture, Ecosystems and
Environment ,59, 107-14.
Roberts, E.H.(1972).Dormancy: a factor affecting seed survival in the soil. In Viability of
Seeds , ed.E.H.Roberts, pp.321-59.Syracuse, NY: Syracuse University Press.
Roberts, E.H.(1988).Seed aging: the genome and its expression. In Senescence and Aging in
Plants , ed.L.D. Noodén & A.C.Leopold, pp. 465-98.San Diego, CA: Academic
Press.
Roberts, H.A.(1984).Crop and weed emergence patterns in relation to time of cultivation
and rainfall. Annals of Applied Biology ,105, 263-75.
Roberts, H.A.(1986).Persistence of seeds of some grass species in cultivated soil. Grass and
Forage Science ,41, 273-6.
Roberts, H.A., & Benjamin, S.K.(1979).The interaction of light, nitrate and alternating
temperature on the germination of Chenopodium album , Capsella bursa-pastoris and
Poa annua before and after chilling. Seed Science and Technology ,7, 379-92.
Roberts, H.A., & Dawkins, P.A.(1967).Effect of cultivation on the numbers of viable weed
seeds in soil. Weed Research ,7, 290-301.
Roberts, H.A., & Feast, P.M.(1972).Fate of seeds of some annual weeds in different depths
of cultivated and undisturbed soil. Weed Research ,12, 316-24.
Roberts, H.A., & Feast, P.M.(1973).Changes in the numbers of viable weed seeds in soil
under different regimes. Weed Research ,13, 298-303.
Roberts, H.A., & Lockett, P.M. (1975).Germination of buried and dry-stored seeds of
Stellaria media . Weed Research ,15, 199-204.
Roberts, H.A., & Neilson, J.E.(1980).Seed survival and periodicity of seedling emergence
in some species of Atriplex , Chenopodium , Polygonum and Rumex . Annals of Applied
Biology ,94, 111-120.
Roberts, H.A., & Potter, M.E.(1980).Emergence patterns of weed seedlings in relation to
cultivation and rainfall. Weed Research ,20, 377-86.
Root, R. (1973).Organization of a plant-arthropod association in simple and diverse
habitats: the fauna of collards ( Brassica oleracea ). Ecological Monographs ,42, 95-124.
Sagar, G.R., & Mortimer,A.M.(1976).An approach to the study of the population
dynamics of plants with special reference to weeds. Applied Biology ,1, 1-43.
Salisbury, E.J.(1942). The Reproductive Capacity of Plants .London: Bell.