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Seed germination and emergence of Eragrostis tenuifolia (A. Rich.) Hochst. ex Steud. in response to environmental factors

100%

Bittencourt H. H., da Silva Bonome L. T., de Bortoli Pagnoncelli,Jr F., Lana M. A., Muzell Trezzi M.

Journal of Plant Protection Research

2016

tom 56

nr 1

Eragrostis tenuifolia is a weed species that is gaining ground in Brazil. This weed occurs in pastures, grasslands, crop fields, and roadsides. The objective of this study was to examine the effects of different environmental factors on E. tenuifolia seed germination and seedling emergence. The optimum constant temperature for germination was around 35–30°C. It was also found that 85% of seeds germinated under a 30/20°C alternate temperature regime. Light appears to have a positive effect on seed germination. No seedlings emerged when seeds were buried 3 cm or deeper. The results suggested that E. tenuifolia has the potential to spread into pastures and in no-tillage crop systems in Brazil. Measures such as the use of cover crops and/or soil cultivation can be used to limit germination and seedling emergence, respectively.

Ograniczanie wyników

1 Journal of Plant Protection Research

1 Bittencourt H. H.

1 Lana M. A.

1 Muzell Trezzi M.

1 da Silva Bonome L. T.

1 de Bortoli Pagnoncelli,Jr F.

1 2016

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Seed germination and emergence of Eragrostis tenuifolia (A. Rich.) Hochst. ex Steud. in response to environmental factors