HGS-114 is being introduced in spring 2013, and is the second commercial grain sorghum hybrid released by Heritage Seeds. Over a number of seasons, it has proven to be a very high yielding option that appears well suited to softer dryland and irrigated conditions in the grain sorghum growing districts of Eastern Australia. It is a high yielding, medium tillering grain sorghum hybrid, offering excellent grain yield and performance when compared to highly respected competitor hybrids of similar maturity like MR-Buster and Dominator. HGS-114 offers an impressive package of very good seedling vigour, good standability, very good head exertion and head uniformity and ultimately, high yields.
DAFF in partnership with GRDC and the commercial sorghum breeding companies have developed a protocol for measuring the midge resistance (MR) levels in grain sorghum hybrids and assigning official MR ratings to all the commercially released lines.
HGS-114 has been evaluated by QLD DAFF for midge resistance. It has a confirmed official midge rating of 6.
Following this link to learn more about the Sorghum Midge Testing Scheme www.grdc.com.au/SorghumMidge
Variety Management / Agronomy
HGS-114 doesn’t require any varietal specific management considerations – however when considering broader management requirements, please consult agronomists from QLD DAFF / NSW DPI or experienced commercial agronomists / consultants in the relevant growing areas.
Disease Resistance / Tolerance
HGS-114 has been evaluated for both Charcoal Rot Lodging and Head Fusarium – results from research trials suggest a rating of 6.0 for a combined charcoal rot and stress lodging trait and 5.5 for Head Fusarium (where a score of 1 = very poor and 9 = excellent). For identification and management of other diseases such as Sorghum Ergot (Claviceps africana) and Leaf Rust (Puccinia purpurea) – please consult agronomists from QLD DAFF / NSW DPI or experienced commercial agronomists / consultants in the relevant growing areas.
Over a number of seasons, HGS-114 has been evaluated in numerous grain sorghum growing environments in Central Queensland south to the Liverpool Plains (NSW) and has been compared with a number of well-regarded competitor hybrids like MR-Buster and Dominator. HGS-114 offers impressive yield potential when compared to these competitor lines of a similar maturity – the yield comparisons at these sites were collected either with a weigh bin or with calibrated yield monitors. HGS-114 will be available for the first time in commercial volumes in 2013 – excellent performance thus far would indicate it is very well suited to the softer dryland and irrigated areas from Central Queensland south to the Riverina / MIA region of Southern NSW.
Even though target plant populations vary with conditions, the uniformity of the established plant population is always extremely important. The plant population targeted depends on the depth of soil moisture at planting and the likely growing conditions. Under dryland situations, lower tillering hybrids should be planted at slightly higher populations.
Consider re-planting when populations are less than about 12–15,000 plants/ha, especially with quick maturity or low tillering hybrids. In skip row situations, aim for plant populations similar to those for good dryland moisture conditions.
When calculating planting rates allow for an extra 20–25% for establishment losses when planting into a very good seedbed on heavy black soil using press wheels and 40–50% when seedbed conditions are fair or when press wheels are not used. Obtain the number of seeds per kg and the germination percentage from the bag.
To determine the planting rate (kg seed/ha):
Required number of plants/m2 × 10,000
Seeds/kg × germ % × establishment %
4 (target plant population/m2) × 10,000
30,000 (seeds/kg) × 0.90 (germ %) × 0.75 (establishment %)
= 1.98 kg seed/ha
(These notes regarding plant populations are a direct copied transcript from page 9 of the 2009 Summer Crop Production Guide – written and published by NSW DPI).
HGS-114 will be available with OptiCOTE Plus seed treatment (Thiram fungicide + Cruiser® insecticide + Concep II® seed safener).
Cruiser® and Concep II® are registered trademarks of Syngenta.