Sunday, November 19, 2017

New varieties added to forage and biogas maize lists for 2018

October 4, 2017 by  
Filed under Crops

maizecovershot

Six new first-choice varieties have been added to the British Society of Plant Breeder’s 2018 Forage Maize Descriptive Lists (DL) – alongside nine new varieties on the accompanying descriptive list of maize varieties suitable for anaerobic digestion.

New additions to the list of varieties varieties for sites with favourable conditions include LG31211 and Gatsby from Limagrain; Autens KWS from KWS; Bonnie and Absalon from Grainseed; and Belami CS from Caussade Semences.

The list of varieties for sites with less favourable or marginal growing conditions include new additions Autens KWS, Bonnie, Gatsby, Absalon and Belami CS. All were added as first choices, said the BSPB.

Good yielders

NIAB TAG forage crop specialist Joanna Matthews believes all forage maize growers will benefit from the new additions – all of which are good yielders with potential to make good silage.

Dr Matthews said: “They offer outstanding yield potential, ranging from 17.8-18.4t DM/ha on the DL for favourable sites which, in combination with a highly digestible ensilagable product, are valuable assets for livestock enterprises.”

Top of the DL for dry matter yield LG31211 is a later maturing variety for favourable sites, combining excellent yield potential (18.4 t DM/ha) with a highly digestible cell wall (CWD) score of 59.3% to create a high quality feedstuff.

Dr Matthews explains that CWD provides an indication of the quality of the leaf and stem material, which usually constitutes 45-55% of the ensilaged material.

“The higher the quality of this material coupled with the starch from the cobs will drive the energy content of the feed deriving a higher metabolisable energy value.”

Standing power

Gatsby is a good all-rounder with excellent yields for its maturity in all growing conditions. It produces high metabolisable energy silage with good standing power. Autens KWS is suitable for both favourable and less favourable sites, combining
great yield potential for its maturity.

“It has a high starch content, which, when combined with its yield, creates one of the highest yielding good starch-rich feedstuff per hectare on the DL,” says Dr Matthews.

Bonnie is suitable for sowing in a broad range of growing conditions and is listed as a first choice variety on the favourable and less favourable lists. It combines great yield potential with a highly digestible stover, reflected in one of the highest ME yields on the DL at 208,000 MJ/ha.

“A high ME value has a higher rate of breakdown within the rumen,” explains Dr Matthews. “Passage time is then higher therefore potentially increasing dry matter intake and animal production levels.”

Absalon features high yield with good starch levels which, when combined with its excellent cell wall digestibility, creates high yielding quality forage for all growing conditions.

The BSPB 2018 Forage Maize and Forage Maize for AD Descriptive Lists are available to download from the BSPB and NIAB websites at www.bspb.co.uk and www.niab.com

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