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The effect of sowing date on the late-winter forage yields and growth characteristics of Wairoa brassica, York Globe turnips and Makuru oats

Research Archive

The effect of sowing date on the late-winter forage yields and growth characteristics of Wairoa brassica, York Globe turnips and Makuru oats

Turner, J. P.
Type: Dissertation
Permalink: https://hdl.handle.net/10182/4817
Originally published: 1978 by Lincoln College, University of Canterbury
Keywords: Wairoa brassica; York Globe turnips; Makuru oats; sowing date; forage yields; late winter; growth characteristics; late sowing; forage crops; feed quality; plant density; total dry matter; leaf area index; yield components
Fields of Research: 070306 Crop and Pasture Nutrition; 070305 Crop and Pasture Improvement (Selection and Breeding); 070302 Agronomy

Abstract:

A field experiment was designed and conducted to study late winter forage yields and growth characteristics from different sowing times of Wairoa brassica, York Globe turnips and Makuru oats. In this experiment, which was of randomised block design, three sowing times at three week intervals from 23 February were studied throughout the winter of 1978 on Wakanui soils at Lincoln. Dry Matter (D.M.) yields, leaf areas and "leaf:stem (bulb)" ratios were measured throughout the experiment. Wairoa brassica and turnips were found to have similar late-winter D.M. yields if sown by mid March, out yielding oats. From later sowing dates, Wairoa brassica and turnips were out-yielded by oats, probably ascribable through differences in leaf structure comparing oat and brassica crops, with oats having higher ceiling LAI values and possibly higher NAR in low light intensity environmental conditions. Wairoa brassica exhibited poor growth from late sowing in comparison to turnips, with late sown turnips showing fast mid-winter bulb growth rates.

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