PERIODICITY OF SEEDLING EMERGENCE AND ACHENE SURVIVAL IN SOME SPECIES OF CARDUUS, CIRSIUM AND ONOPORDUM

[11] MADSEN S. B., 1962, Proceedings of the International Seed Testing Association, V27, P920

[12] MCCARTY MK, 1969, 230 NEBR AGR EXP STA

[13] MCCARTY MK, 1969, 229 NEBR AGR EXP STA

[14] ODUM SOREN, 1965, DANSK BOT ARK, V24, P1

[15] ROBERTS H. A., 1964, WEED RES, V4, P296, DOI 10.1111/j.1365-3180.1964.tb00304.x

[16] ROBERTS HA, 1972, WEED RES, V12, P316, DOI 10.1111/j.1365-3180.1972.tb01226.x

[17] EMERGENCE AND LONGEVITY OF SEEDS OF ANNUAL WEEDS IN CULTIVATED AND UNDISTURBED SOIL [J]. JOURNAL OF APPLIED ECOLOGY, 1973, 10 (01) : 133 - 143

[18] SCIFRES CJ, 1969, 228 NEBR AGR EXP STA

[19] Toole E. H., 1946, JOUR AGRIC RES, V72, P201

[20] Watanabe Y., 1975, Weed Research, Japan, P14

[11] MADSEN S. B., 1962, Proceedings of the International Seed Testing Association, V27, P920

[12] MCCARTY MK, 1969, 230 NEBR AGR EXP STA

[13] MCCARTY MK, 1969, 229 NEBR AGR EXP STA

[14] ODUM SOREN, 1965, DANSK BOT ARK, V24, P1

[15] ROBERTS H. A., 1964, WEED RES, V4, P296, DOI 10.1111/j.1365-3180.1964.tb00304.x

[16] ROBERTS HA, 1972, WEED RES, V12, P316, DOI 10.1111/j.1365-3180.1972.tb01226.x

[17] EMERGENCE AND LONGEVITY OF SEEDS OF ANNUAL WEEDS IN CULTIVATED AND UNDISTURBED SOIL [J]. JOURNAL OF APPLIED ECOLOGY, 1973, 10 (01) : 133 - 143

[18] SCIFRES CJ, 1969, 228 NEBR AGR EXP STA

[19] Toole E. H., 1946, JOUR AGRIC RES, V72, P201

[20] Watanabe Y., 1975, Weed Research, Japan, P14