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Natural Factors Influencing Persistence and Production in Lucerne

By Asst Editor Damian M, on November 10th, 2011

Downy Mildew

Diseases

Phytophthora root rot (caused by the fungus Phytophthora medicaginis) and colletotrichum crown rot (caused by the fungus Colletotrichum trifolii) are two major diseases reducing lucerne populations in Queensland.

Phytophthora root rot is favoured by wet soils and may occur in stands sown on poorly drained soils. These include both heavy . . . → Read More: Natural Factors Influencing Persistence and Production in Lucerne

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Sowing of Wheat - Depth - Seeding Rate - Seed Dressing

By Asst Editor Di P, on August 15th, 2011

Semi-dwarf wheat plants

Depth of sowing

Deep sowing may delay or stifle emergence, while shallow sowing risks seed damage from herbicide uptake. The length of the first shoot (coleoptile) has a bearing on depth of sowing. If a variety is sown deeper than the natural growth extension of the coleoptile then the . . . → Read More: Sowing of Wheat - Depth - Seeding Rate - Seed Dressing

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