Ground Cover North : Ground Cover 055 April-May 2005 - North
Ground cover April/mAy 2005 Trial summaries for new varieties At the recent Grains research update in Adelaide for advisers, mr rob Wheeler, leader of the South Australian Field crop evaluation program at SArdi, profiled new and recent wheat and barley varieties available for the 2005 season. The summaries are based on SA trials, current knowledge about performance and disease and quality characteristics. mr Wheeler says rust resistance or susceptibility should be a major consideration in variety choice and he urges growers not to sow highly susceptible varieties such as H45 and Westonia in stripe rust-prone districts. new varieties 16 AGT Scythe (tested RAC1055) rAc1055 (ApW) is a breeder’s line being released by AGT in 2005. it has high yield potential, is widely adapted and early flowering and has adequate resistance to all three rusts for south-eastern Australia. rAc1055 is less susceptible to yellow leaf spot than Frame, yitpi and Janz and is susceptible to cereal eelworm. rAc1055 has similar grain size to yitpi. Annuello Annuello (AH) was released from vidA in victoria during 2001 as a Janz/meering alternative for north-east victoria and south-east nSW. it is derived from Janz, with similar grain weight and plumpness but having cereal eelworm resistance and better leaf rust resistance. it is similar to Janz in maturity. Trial yields have been similar or slightly above Janz. Black-point tolerance appears good. Annuello is an alternative to Janz with ccn resistance and better leaf rust resistance. Seed is licensed to plantTech. Arrivato Arrivato (durum) was developed by new Zealand crop and Food research for release in Australia by Heritage Seeds. interstate information indicates that it has rust resistance, cereal eelworm resistance similar to Tamaroi, and is moderately resistant to septoria tritici blotch and susceptible to yellow spot. it has slightly later maturity than Tamaroi and yallaroi and has significantly greater grain size than these varieties. Across three years of evaluation Arrivato has averaged five percent lower yield when compared to Tamaroi but this difference reduces as rainfall and yield potential increases. Arrivato appears best suited to higher rainfall districts. Seed is protected by pBr and licensed to AWB Seeds. Bellaroi Bellaroi (durum) was developed by the national durum Breeding program in Tamworth and selected for high protein and improved semolina colour. in SA stage 4 trials during 2001 its protein content averaged almost 0.5 percent higher than Tamaroi, Gunderoi and yallaroi. during three years of evaluation Bellaroi averaged seven percent lower yield when compared to Tamaroi, but like Arrivato, this difference reduces as rainfall and yield potential increases. Drysdale drysdale (ApW) was developed from Hartog by nSW Agriculture and Graingene and released as an AH quality wheat for southern nSW. it has no cereal eelworm resistance but has adequate resistance to all rusts and has acid soils tolerance. drysdale is early maturing and while developed for drought tolerance, this was not a significant advantage in the heat-stressed and dry spring conditions experienced in SA trials. drysdale appears to be a moderate- yielding rust-resistant variety most suitable for lower rainfall districts where ccn is under control. Seed is licensed to AWB Seeds. EGA Bonnie Rock eGA Bonnie rock (ApW in SA) was released in WA in 2002 as a AH quality, high protein variety. it is the highest yielding AH variety in WA with carnamah-like yield potential. it is better than carnamah on acidic and boron toxic soils and has carnamah maturity. Bonnie rock has resistance to S. nodorum blotch and yellow spot but is very susceptible to stripe rust and also lacks good resistance to other rusts. High stripe rust susceptibility and moderate leaf and stem rust susceptibility are likely to hinder its wide adoption. Bonnie rock is licensed to eastern districts Seed cleaners (eSdco). EGA Castle Rock eGA castle rock (ApW in SA) is derived from cascades and was developed and released by the WA department of Agriculture in 2003. it has similar height and maturity to cascades and in 2004 yield trials in SA performed similarly to Janz. it has good stem rust resistance but is moderately susceptible to stripe rust (WA strain). Seed is licensed to Graintrust in eastern Australia. EGA Eagle Rock eGA eagle rock (ApW in SA) is derived from Blade and was developed and released in WA in 2004. it has metribuzin tolerance and could offer an alternative grass control option to clearfield varieties. in SA variety trials its average yield was similar to clearfield JnZ. it has good stem rust resistance but is moderately susceptible to stripe rust (WA strain) and leaf rust. GBA Sapphire GBA Sapphire (ApW) is derived from Janz and is one of four varieties released nationally by Grain Biotech Australia during 2003. it has good resistance to rusts although moderately susceptible to stripe rust (WA strain) and has some resistance to yellow leaf spot and septoria tritici blotch. in SA yield trials, GBA Sapphire generally performed similarly to Janz and Janz types like Annuello and Babbler. GBA Sapphire is an alternative to Janz, with improved disease resistance but of lesser quality (ApW). Seed is licensed to pioneer Seeds. Kalka Kalka (Wid 99006) is derived from yallaroi with reportedly improved tolerance to high soil boron. during seasons with a favourable finish, Kalka has averaged slightly higher trial yields than Tamaroi, but not so in the drier 2002 and 2003 seasons. The grain of Kalka is slightly lighter but has less screenings than Tamaroi and features improved semolina colour. Kalka offers a boron tolerant alternative to Tamaroi with improved semolina colour. Seed is available through the SA durum Growers Association. Kukri Kukri (AH) has high rust resistance but moderate yield levels compared to many ApW and ASW varieties. Has good early vigour and early maturity. Grain size and screenings are similar to excalibur. Kukri is moderately susceptible to yellow leaf spot and crown rot, susceptible to cereal eelworm, moderately susceptible to pratylenchus neglectus and susceptible to bunt. Kukri is intolerant to high soil boron. it is suitable for wheat-on-wheat situations, and for low rainfall, short season environments where high protein is also achievable. Seed is marketed by AWB Seeds. Pugsley pugsley (ApW) was developed by the former Waite Wheat Breeding program and released by Australian Grain Technologies (AGT) in 2003. pugsley is later flowering and largely derived from Frame and Trident with high yields like Wyalkatchem and Krichauff. it has boron tolerance and generally adequate rust resistance although moderately susceptible to stripe rust. pugsley is moderately susceptible to cereal eelworm and susceptible to yellow spot. it has moderate grain size and screenings potential. pugsley is a higher yielding alternative to Frame for districts where stripe rust and cereal eelworm risk is low. pugsley is commercialised by Graintrust. SW Odiel SW odiel (ASW) has been tested as AGHW001 across SA since 2002 and is being released commercially this season. it is early maturing with moderate yields relative to alternative ASW varieties, but has a good spectrum of rust resistances, being resistant to stripe rust (WA strain), mr/mS to stem rust and r/mr to leaf rust. it does not have ccn resistance and is susceptible to septora tritici blotch, yellow leaf spot and flag smut. SW odiel offers an early-maturing, moderate- yielding, low rust risk option for lower rainfall districts. Tamaroi Tamaroi was developed from the Waite Wheat Breeding Group and the national durum Breeding program. it is the highest yielding commercial variety within SA durum trials with good resistance to all wheat rusts and moderate susceptibility to cereal eelworm. it is more susceptible to septoria tritici blotch than alternative varieties and has a tendency to higher screenings. Tamaroi has limited marketability for couscous quality as it has undesirable colour and strength. Tamaroi yields well in all durum growing districts. Wyalkatchem Wyalkatchem (ApW) was released by the WA department of Agriculture in 2001 and with very high yields has been increasingly adopted by southern growers. it is early-to-mid season in maturity and has short straw for stubble handling. These characteristics, when combined with yellow leaf spot resistance, are useful in wheat-on- wheat rotations although Wyalkatchem is moderately susceptible to stripe and stem rust. While its plumpness and test weight characteristics are good, sprouting tolerance appears low. Treflan should be used with caution since Wyalkatchem has a short-to-medium coleoptile length. Wyalkatchem seems suitable for high yielding and wheat-on- wheat situations. However with new rust strains, Wyalkatchem is now a moderate- to-high risk for stripe and stem rust. Seed is licensed to plantTech. Yitpi yitpi (AH) is a cereal eelworm resistant variety, with similar agronomic features to Frame. yitpi’s grain, while slightly smaller than Frame, tends to show moderate screenings similar to Janz. yitpi has moderate stripe and leaf rust resistance but is susceptible to stem rust and should not be grown in coastal districts where risk is greatest. yitpi can be considered an alternative to Janz, machete and Frame for southern districts except where stem rust is a risk. Seed is licensed to AWB Seeds and AFcA. Grdc research code dAS280. For more information: rob Wheeler, 08 8303 9480, firstname.lastname@example.org .gov.au AThe following varieties listed on pages 16 and 17 are protected by plant Breeders’ rights (pBr): AGT Scythe, Annuello, Arrivato, Bellaroi, drysdale, eGA Bonnie rock, eGA castle rock, eGA eagle rock, GBA Sapphire, Kalka, Kukri, pugsley, Tamaroi, Wyalkatchem, yitpi, dhow, Gairdner, Schooner, Sloop, Sloop SA, Sloop vic, Barque, Keel, mundah, Torrens, maritime, capstan.
Ground Cover 056 June-July 2005 - North
Ground Cover 054 February-March 2005 - North