M Unkovich, N Wilhelm and S Davey
GK McDonald, RD Graham, J Lloyd, J Lewis, P Lonergan and H Khabas-Saberi
|Contributor||South Australian Research and Development Institute|
Site 2, Birchip, VIC
|Further information||View external link|
To produce Endnote generated txt file database of research on trace elements in cropping systems of south eastern Australia.
To develop molecular markers for Zn efficiency.
• The +Zn treatment received 7 kg Zn/ha at sowing plus 2 foliar sprays of 0.33 kg Zn/ha • Generally, yield responses to Zn are greater in durum and bread wheat than in barley • The most inefficient lines of wheat and barley showed distinctive symptoms of Zn deficiency, such as reduced growth, pale leaves with chlorotic and necrotic lesions along the mid-vein • In 1999 a dry spring limited the yield response to Zn to about 0.5 t/ha, whereas, in 1998 yield increases up to 1 t/ha were measured • The disparity between the vegetative and the yield responses has tended to be greater in barley than in wheat • The wheat cultivars Goldmark and Kukri have low Zn efficiency, whereas the widely adapted, high yielding cultivars Trident, Krichauff and Worrakatta are Zn-efficient • Within barley, a number of Japanese breeding lines (eg SBWI-1) are very inefficient, but many current cultivars from SA as well as Arapiles (Vic.) and Stirling (WA) show a high level of efficiency • Pot assays for Zn efficiency have been developed and generally show similar rankings to the field tests • Wheat double haploid populations derived from the cross between Trident (efficient) and Songlen (inefficient) have been produced to develop molecular markers for Zn efficiency.
|Lead research organisation||N/A|
|Host research organisation||
South Australian Research and Development Institute
Waite Research Institute - The University of Adelaide
|Trial funding source||GRDC DAS00146,DAS00146|
More Profit from Crop Nutrition
|Other trial partners||Not specified|
|Crop type||Other: Multiple|
|Sow rate or Target density||Not specified|
|Sowing machinery||Not specified|
|Plot size||Not specified|
|Plot replication||Not specified|
|Plot blocking||Not specified|
|Plot randomisation||Not specified|
|Paddock history||Not specified|
|Soil amelioration||Not specified|
|Seed treatment||Not specified|
|Other trial notes||
Genc Y, McDonald GK and Graham RD (2000) Aust. J. Agric. Sci. 51, 37-46. Graham R (1991). In: Wheat for the Non-traditional Warm Areas (Ed. D.A. Saunders) (CIMMYT, Mexico DF) pp. 315-322. Graham, R.D., Ascher, J.S. and Hynes, S.C. (1992) Plant and Soil 146, 241-250. Longnecker, N.E., Graham, R.D., McCarthy, K.W., Sparrow, D.H.B, and Egan, J.P. (1990). In: Genetic Aspects of Plant Mineral Nutrition (Ed. N. El Bassam et al.) (Kluwer Academic Publishers). pp: 273-280.