Voltron

Voltron

• A high yielding facultative feed and biscuit wheat
• High yield potential under a wide sowing window – April until late August (no vernalisation requirement)
• Well suited to Canterbury and Southland regions including dryland sites
• Good all-round disease resistance profile and high tillering ability

Description

VOLTRON wheat (KWW78) is an exciting feed and biscuit wheat cultivar bred by Limagrain UK and further developed by PGG Wrightson Grain (PGW Grain). It is a mid-long season alternative type with a very wide sowing window, has a high level of leaf and ear waxiness, high tillering ability and good straw strength. VOLTRON produces soft endosperm grain that is suitable for both milling industry and feed uses.

Yield

VOLTRON has consistently demonstrated very high stable yields across a range of trial sites throughout Canterbury and Southland with potential to establish itself as a preferred feed/biscuit wheat cultivar by growers. It is one of the leading cultivars for yield in FAR CPT Southland and Canterbury trials.

CPT VOLTRON grain quality (4 year mean)

Lower North Island

Canterbury

Southland

Kernel weight (1000 seed weight) 45 45 48
Test weight (kg/hl) 73 75 77
Protein content (%) (N% x 5.7) 10.1 10.6 9.1
Screenings (%) 1.3 1.2 0.6
Falling number (sec) 318 345 305

Grain quality

VOLTRON produces a medium sized grain which readily achieves the low proteins desirable for biscuit making and has a high level of sprouting resistance making it less likely to deteriorate in quality with post-maturity rainfall. This combined with low-moderate late maturity alpha amylase susceptibility means that it consistently achieves acceptable milling industry falling numbers.

Time of drilling

The full yield potential of VOLTRON is most likely to be achieved from an autumn drilling window of April to late May. In addition, it is a top yielding variety compared to other options throughout winter and into early spring.

Speed of development

Month planted

Typical heading dates for VOLTRON in Canterbury

Late March Early November
Late May Mid-November
Late June Late November

Seed rate and tillering characteristics

VOLTRON has excellent tillering capacity and target plant populations should be at the low to medium end of the range for autumn wheat.

Soil type, rotation and geography

VOLTRON has shown that it can perform well under a range of different soil types and environments especially in Canterbury and Southland. VOLTRON, in trials to date, has yielded very well under irrigation and rainfed/dryland locations. It has only been an average performer in the North Island based on FAR CPT trial data to date so is not recommended for this region.

Disease resistance

VOLTRON has good resistance to Septoria leaf blotch and stripe rust and intermediate resistance to leaf rust and mildew. In PGW Grain agronomy trials (2020/21), VOLTRON produced the 2nd highest untreated yields and fungicide responses of 1.5-4.1 t/ha. Considering the disease profile, a low to moderate fungicide programme is recommended. However, in areas prone to Sharp Eyespot, a robust T0 (Bolide or Kestrel) and plant growth regulator (PGR) programme is required. Please contact your local PGW Representative for site specific recommendations.

Disease resistance results:

Disease

PGW disease nursery ratings
(9 highly resistant, 1 highly susceptible)

CPT Cultivar evaluation rating

Stripe rust 9 Mostly resistant
Leaf rust 6 Intermediate resistance
Septoria leaf blotch 7 Moderately resistant
Powdery mildew 7 Moderately susceptible
Fusarium head blight 6 Mostly resistant

Straw strength and height

VOLTRON is a medium height cultivar with good standing power. In the 2020/21 agronomy trial, in the absence of lodging, the greatest height reductions were observed under moderate to high input programmes (Cycocel + Moddus Evo at GS 31 or split applications at GS 30 and GS 32). The actual programme is determined by a combination of sowing date, seed rate, nitrogen use, crop thickness and yield potential. As with any cultivar, do not apply if the crop is under any form of stress. Please contact your local PGW Representative for site specific recommendations.

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