Crop Production 5. Variety Selection

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Crop Production5. Variety Selection

• Level II Agricultural Business Operations

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What makes some varieties better than others?

Ease of management
Disease resistance
Consistent performer
Yield
Market requirements
Quality
Spreading Workload at busy times
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Choice of variety

• Choose variety to suit the conditions
• Factors to consider
• Location
• Soil type
• Growing conditions
• End product
• Pests diseases

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Recommended lists

• AFBI, HGCA, DAFM publish recommended lists
• HGCA RL plus
• Updated annually
• Provides information on
• Agronomic characteristics
• yield,
• straw length
• maturity.
• Resistance to pests diseases.
• Consumer quality e.g. crisp colour, grain size.

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Recommended Varieties for NI

• Part of HGCA Recommended list trialling system
• Varieties enter trial after national list testing
• Trials include popular ROI varieties
• Classifications are
• G fully recommended for general use.
• S fully recommended special use.
• P provisionally recommended.
• PS provisionally recommended special use.
• O becoming outclassed

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Choosing a cereal variety

• What are your selection criteria?
• Yield potential
• Grain quality characteristics
• Straw characteristics
• Disease resistance
• Earliness of ripening
• Suitability to farm situation
• Cost

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Oilseed rape selection criteria

• Variety Type
• Yield potential
• Oil content
• Stem stiffness shortness
• Earliness of maturity
• Disease resistance
• Light leaf spot
• Stem Canker
• Cost

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Choosing a potato variety

• Market often specifies market
• Select a variety from the recommended list on the
  basis of
• Yield potential
• Marketable quality
• Maturity
• Keeping quality
• Disease resistance
• Seed availability and cost

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Potato varieties Agronomic
Name Yield Tuber number Tuber size Freedom from defects Rst to damage Maturity
British Queen 98 7 4 7 5 7
Cabaret 78 5 5 7 4 7
Cultra 126 6 6 9 5 5
Kerrs Pink 100 6 5 8 5 3
Lady Rosetta 92 5 6 8 6 6
Maris Peer 81 7 5 8 4 8
Maris Piper 106 7 5 7 5 5
Navan 111 5 6 8 5 3
Sante 112 6 6 8 4 6
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Potato varieties Disease/ Pests
Name Blight Blight C. scab Black leg Gang rene Dry rot Skin spot PVY Leaf roll PCE PCE
Name Foliage Tubers C. scab Black leg Gang rene Dry rot Skin spot PVY Leaf roll G.r G.p
British Queen 3 3 7 5 S S
Cabaret 3 4 4 7 7 3 3 R S
Cultra 5 6 6 6 4 5 4 3 1 R S
Kerrs Pink 6 4 3 5 5 2 3 3 S S
Lady Rosetta 4 4 6 3 7 5 6 R S
Maris Peer 4 4 5 4 6 3 4 S S
Maris Piper 4 5 1 5 6 2 4 2 4 R S
Navan 5 6 5 6 5 4 3 7 4 R S
Sante 7 8 6 3 3 6 4 9 5 R PR
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Review

• Select a variety of winter wheat with high yield
  potential, good standing power and good
  resistance to mildew and septoria.
• Select a potato variety with high yield
  potential, good freedom from defects, and good
  resistance to blight, viruses and eelworm.

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Summary

• Within any crop group varieties can vary greatly
• Varieties undergo testing to rank agronomic
  characteristics
• Base selection criteria on your farm situation
  and marketing strategy
• Plan in advance