Publication Date
1993
Description
Forage turnip (Brassica rapa L,) can be made available for animal utilisation in late summer or In late autumn-early winter, when coolseason grass pastures have a low animal carrying capacity. field trials were conducted to identify and quantify factors that influence turnip yield in December or January and to determine whether these factors affect turnip cultivars similarly. Different levels of production in late autumn-winter were attributed to summer drought, foliar diseases, freezing temperatures and rate of leaf senescence. In all instances, the effects of these factors varied with turnip cultivar. However, cultivar ranking generally was the same whether mean yields exceeded 6.0 t/hn, or were less than 5.0 t/ha. When disease load was light, Tyfon ranked no. 2, but when disease load was heavy, it ranked no. 5. When planting was delayed from 20 July to 20 August, the priority for top production differentially increased in turnip cultivars. One turnip hybrid exhibited a high degree of disease resistance and cold tolerance, and a slow rate of leaf senescence; its yield of crude protein was high, and remained unchanged for 120 days in autumn.
Citation
Jung, G A.; Harpster, H W.; Lambert, M G.; Leath, K T.; and Byers, R A., "Use of Brassica Forage Crops to Extend the Grazing Season in the North-East USA" (2024). IGC Proceedings (1993-2023). 25.
https://uknowledge.uky.edu/igc/1993/session37/25
Included in
Agricultural Science Commons, Agronomy and Crop Sciences Commons, Plant Biology Commons, Plant Pathology Commons, Soil Science Commons, Weed Science Commons
Use of Brassica Forage Crops to Extend the Grazing Season in the North-East USA
Forage turnip (Brassica rapa L,) can be made available for animal utilisation in late summer or In late autumn-early winter, when coolseason grass pastures have a low animal carrying capacity. field trials were conducted to identify and quantify factors that influence turnip yield in December or January and to determine whether these factors affect turnip cultivars similarly. Different levels of production in late autumn-winter were attributed to summer drought, foliar diseases, freezing temperatures and rate of leaf senescence. In all instances, the effects of these factors varied with turnip cultivar. However, cultivar ranking generally was the same whether mean yields exceeded 6.0 t/hn, or were less than 5.0 t/ha. When disease load was light, Tyfon ranked no. 2, but when disease load was heavy, it ranked no. 5. When planting was delayed from 20 July to 20 August, the priority for top production differentially increased in turnip cultivars. One turnip hybrid exhibited a high degree of disease resistance and cold tolerance, and a slow rate of leaf senescence; its yield of crude protein was high, and remained unchanged for 120 days in autumn.
