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| Author(s): | Wells, G. J. |
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| Author Affiliation: | ARC Weed Research Organization, Yarnton, Oxford OX5 1PF, UK |
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| Title: | The germination and growth of Poa annua sown monthly in the field |
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| Source: | Proceedings 12th British Weed Control Conference. 1974, p. 525-532. |
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| Publishing Information: | London, UK; British Crop Protection Council |
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| Keywords: | TIC Keywords: Weed seeds; Germination; Flowering; Ecotypes
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| Geographic Terms: | UK |
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| Abstract/Contents: | A growth study was made of spaced plants arising from seed sown monthly in 1972. Seed germinated during most months of the year, although climatic conditions influenced both total number and rate of emergence. The growth of the resulting plants followed the same allometric pattern and the relationship was constant for both vegetative and reproductive stages in different climatic conditions and over varying time spans. Tiller number was greatest on earlier-sown plants, one in January attaining 45 cm diameter with an estimated 1000 tillers. There were, however, two ecotypes in the seed collection. One was characterized by few secondary tillers (50-175) and 15 month mean life-span, the other by many secondary tillers (250-700) and 19 month mean life-span. The peak time of flowering in 1972 was July-September and in 1973 May-June. From summary. |
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| Language: | English |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Wells, G. J. 1974. The germination and growth of Poa annua sown monthly in the field. Brit. Weed Control Conf. Proc. p. 525-532. |
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