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EMLA 7

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Origin

Malling 7 was selected at East Malling from a group of traditional French rootstocks known as Doucin. Much of the work on M.7 at East Malling was carried out with clone M.7a which was free of the economically important viruses, but known to contain a latent virus. A virus-indexed EMLA clone was introduced by East Malling Research Station in 1974 - 75

Influence on Scion Habit

EMLA 7 produces sturdy trees that are approximately twice the size of those on M9, or about 60% the size of trees on seedling rootstocks. EMLA 7 has been relatively little used in Europe but very widely used in North America for its exceptional winter hardiness and good anchorage. Trees on EMLA 7 are less precocious and have a lower cropping efficiency than EMLA 9 or EMLA 26.

Disease Resistance

EMLA 7 is moderately resistant to collar rot (Phytophthora cactorum).

Nursery Habit

EMLA 7 has excellent nursery habits. It is easy to propagate from stoolbeds, and is compatible with a wide range of scion varieties. High budding followed by deep planting with the graft union just above soil level is recommended.

Horticultural Value

Commercially, EMLA 7 has been widely grown for decades. It appears to be hardier than seedling varieties and under Washington conditions has shown minimal susceptibility to collar rot (Phytophthora cactorum). EMLA 7 performs better on deep fertile loam soils of a moderate to heavy texture under a wide range of conditions. It does not perform well on light sandy soils or under low fertility. It has been recommended for soils with high lead arsenic residues and old orchard sites with replant problems. EMLA 7 shows less suckering than M.7 and M.7a


Inventory

Size: 1/8" 4-5mm

Amount: 0

Size: 3/16" 5-7mm

Amount: 29741

Size: 1/4" 7-9mm

Amount: 0

Size: 3/8" 9-12mm

Amount: 0

Size: 1/2" 12+mm

Amount: 0

Counts: Estimate

Regrade Inventory

Size: 1/8" 4-5mm

Amount: 35376

Size: 3/16" 5-7mm

Amount: 72378

Size: 1/4" 7-9mm

Amount: 21929

Size: 3/8" 9-12mm

Amount: 0

Size: 1/2" 12+mm

Amount: 0

Counts: Estimate


Pricing

Size 100-999 1,000-9,999 10,000 - 49,999 50,000 - 199,999 200,000 - 499,999 500,000 and up
1/8" - 4-5 mm $0.975 $0.720 $0.680 $0.650 $0.610 $0.580
3/16" - 5-7 mm $1.195 $0.870 $0.800 $0.780 $0.740 $0.710
1/4" - 7-9 mm $1.355 $0.930 $0.890 $0.850 $0.810 $0.780
3/8" - 9-12 mm $1.475 $0.980 $0.940 $0.900 $0.860 $0.830

If regrade rootstocks are available, they are sold at 20% less list price.

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