AEXCO


	2009 Oat Hay Varities These notes about AEXCO commercialised Oat varieties have been extracted from the 2008 SARDI Oats Sowing Guide. To refer to the full SARDI Sowing Guide, please CLICK HERE Kangaroo Kangaroo is the third hay variety commercialised from the SARDI Oat Breeding Program by AEXCO. It is a tall mid-late season variety four days later to head than Marloo with excellent early vigour. Its later flowering time makes it less suited to low-rainfall environments. Kangaroo is an improvement compared to Marloo and Wallaroo for hay yield, grain yield, SN tolerance, septoria, bacterial blight, stem rust and leaf rust resistance. It is similar to Marloo and Wallaroo for CCN resistance and tolerance, and BYDV resistance. Kangaroo has high hull grain lignin. Hay cut from this variety tends to be high in neutral detergent fibre (NDF) and lower in water soluble carbohydrates (WSC) requiring a hay quality management program. This may include cutting at an earlier growth stage than other varieties, managing the canopy to limit excess growth, or cutting the crop higher from the soil surface. A trial to examine the effect on hay quality of nitrogen application was sown at Kingsford Research Centre in 2005 and some ‘broad acre’ demonstration plots have been sown in SA and WA. Limited seed of Kangaroo will be available in 2006. Brusher Brusher is a new early to mid-season tall oat developed by SARDI and released with PBR in 2003. It was commercialised by AEXCO and is two to four days earlier to head than Marloo. Brusher is recommended to replace Marloo for all rainfall zones where cereal cyst and stem nematode are not a problem due to its superior hay yield compared to this variety. In low rainfall areas it also has higher hay yields than Swan, Wallaroo and Glider. In medium to high-rainfall areas it has similar hay production to these varieties. It has inferior hay yield when compared to Wintaroo but is recommended to replace this variety where improved resistance to stem and leaf rust or improved hay digestibilty is desired. Grain yield is similar to Wintaroo, Wallaroo, Swan and Marloo. Brusher is moderately susceptible to stem rust, BYDV and bacterial blight. It is resistant to leaf rust, and intermediate in its reaction to septoria. It is resistant but moderately intolerant of CCN and intolerant of SN. When there is a high CCN population in a paddock with favourable seasonal conditions, Brusher will have significantly lower hay yield than tolerant varieties. It has improved hay digestibility compared to Marloo, Swan, Wallaroo and Glider. Wintaroo Wintaroo is a new mid-season tall oat developed by SARDI and released with PBR in 2001. It was commercialised by AEXCO and is recommended for all rainfall zones to replace Marloo. Wintaroo has higher hay and grain yields than Marloo, Swan and Bettong, and higher hay yields than Wallaroo when grown in all rainfall zones. It also has higher hay yields than Glider in all rainfall zones. However, Glider has a foliar disease resistance spectrum more suited to highrainfall zones. Wintaroo is resistant and tolerant to CCN and tolerant to SN. It is moderately resistant to septoria and barley yellow dwarf virus, but susceptible to stem and leaf rust. Wintaroo is similar to Marloo for early vigour and heading but has better resistance to brown leaf tipping by hot northerly winds. Wintaroo maintains good colour longer than most varieties so care is needed to assess the crop for optimum cutting time to ensure good quality.

2009 Oat Hay Varities

These notes about AEXCO commercialised Oat varieties have been extracted from the 2008 SARDI Oats Sowing Guide.

To refer to the full SARDI Sowing Guide, please CLICK HERE

Kangaroo
Kangaroo is the third hay variety commercialised from the SARDI Oat Breeding Program by AEXCO. It is a tall mid-late season variety four days later to head than Marloo with excellent early vigour. Its later flowering time makes it less suited to low-rainfall environments. Kangaroo is an improvement compared to Marloo and Wallaroo for hay yield, grain yield, SN tolerance, septoria, bacterial blight, stem rust and leaf rust resistance. It is similar to Marloo and Wallaroo for CCN resistance and tolerance, and BYDV resistance. Kangaroo has high hull grain lignin. Hay cut from this variety tends to be high in neutral detergent fibre (NDF) and lower in water soluble carbohydrates (WSC) requiring a hay quality management program. This may include cutting at an earlier growth stage than other varieties, managing the canopy to limit excess growth, or cutting the crop higher from the soil surface. A trial to examine the effect on hay quality of nitrogen application was sown at Kingsford Research Centre in 2005 and some ‘broad acre’ demonstration plots have been sown in SA and WA. Limited seed of Kangaroo will be available in 2006.

Brusher
Brusher is a new early to mid-season tall oat developed by SARDI and released with PBR in 2003. It was commercialised by AEXCO and is two to four days earlier to head than Marloo. Brusher is recommended to replace Marloo for all rainfall zones where cereal cyst and stem nematode are not a problem due to its superior hay yield compared to this variety. In low rainfall areas it also has higher hay yields than Swan, Wallaroo and Glider. In medium to high-rainfall areas it has similar hay production to these varieties. It has inferior hay yield when compared to Wintaroo but is recommended to replace this variety where improved resistance to stem and leaf rust or improved hay digestibilty is desired. Grain yield is similar to Wintaroo, Wallaroo, Swan and Marloo. Brusher is moderately susceptible to stem rust, BYDV and bacterial blight. It is resistant to leaf rust, and intermediate in its reaction to septoria. It is resistant but moderately intolerant of CCN and intolerant of SN. When there is a high CCN population in a paddock with favourable seasonal conditions, Brusher will have significantly lower hay yield than tolerant varieties. It has improved hay digestibility compared to Marloo, Swan, Wallaroo and Glider.

Wintaroo
Wintaroo is a new mid-season tall oat developed by SARDI and released with PBR in 2001. It was commercialised by AEXCO and is recommended for all rainfall zones to replace Marloo. Wintaroo has higher hay and grain yields than Marloo, Swan and Bettong, and higher hay yields than Wallaroo when grown in all rainfall zones. It also has higher hay yields than Glider in all rainfall zones. However, Glider has a foliar disease resistance spectrum more suited to highrainfall zones. Wintaroo is resistant and tolerant to CCN and tolerant to SN. It is moderately resistant to septoria and barley yellow dwarf virus, but susceptible to stem and leaf rust. Wintaroo is similar to Marloo for early vigour and heading but has better resistance to brown leaf tipping by hot northerly winds. Wintaroo maintains good colour longer than most varieties so care is needed to assess the crop for optimum cutting time to ensure good quality.