Impact of pasture height and herbage mass on suppression of variegated thistle in North Island East Coast hill country
| العنوان: | Impact of pasture height and herbage mass on suppression of variegated thistle in North Island East Coast hill country |
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| المؤلفون: | R.M. Greenfield, Emma Noakes, Ants H.C. Roberts, C. A. Cameron, Tim Rhodes, Renee Grigson, Sue M. Zydenbos, K. N. Tozer |
| المصدر: | Journal of New Zealand Grasslands. 82:83-90 |
| بيانات النشر: | New Zealand Grassland Association, 2020. |
| سنة النشر: | 2020 |
| مصطلحات موضوعية: | 0106 biological sciences, East coast, food.ingredient, geography.geographical_feature_category, Soil Science, 04 agricultural and veterinary sciences, Plant Science, 01 natural sciences, Pasture, food, Geography, Agronomy, 040103 agronomy & agriculture, Thistle, 0401 agriculture, forestry, and fisheries, Agronomy and Crop Science, Ecology, Evolution, Behavior and Systematics, 010606 plant biology & botany, Nature and Landscape Conservation |
| الوصف: | Variegated thistle in East Coast North Island hill country reduces pasture and livestock productivity. To quantify the impact of increasing amounts of pasture cover (herbage mass) on this weed, variegated thistle seeds were hand-sown in autumn into pasture swards that ranged in height from 0 cm (bare ground) to 12 cm, on an East Coast property near Gisborne. Sward height was maintained by mowing without damaging the thistle plants. Increasing pasture cover reduced thistle emergence, height, diameter, biomass, survival, and seed production. By early June, 7 weeks after sowing, thistle emergence was greatest from bare ground and from maintaining a pasture at a height of 3 cm (>1100 kg DM ha-1 in autumn) and declined with increasing pasture height. By December, thistle height, diameter, biomass, flowerhead production and survival were highest in the bare ground treatment (thistle biomass ≈760 g plant-1), much lower in the 3-cm pasture height treatment (≈20 g plant-1), negligible in the 6-cm (>1600 kg DM/ha) and nil in the 8-cm (>1800 kg DM ha-1) and 12-cm (>2700 kg DM ha-1) pasture treatments (P |
| تدمد: | 2463-2880 2463-2872 |
| DOI: | 10.33584/jnzg.2020.82.439 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::5a205a2b7f9fbc6a3807d3bec0f8428f https://doi.org/10.33584/jnzg.2020.82.439 |
| Rights: | OPEN |
| رقم الانضمام: | edsair.doi...........5a205a2b7f9fbc6a3807d3bec0f8428f |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 24632880 24632872 |
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| DOI: | 10.33584/jnzg.2020.82.439 |