Gemson

Since its commercial release in 2007 Gemson has gone from strength to strength in the expanding baby potato sector. Gemson is renowned for producing exceptional small, white, round and bright tubers, perfect for the packing industry and of the same standard as current sector leader Maris Peer.

Gemson is comparable in every way with the widely known Maris Peer except in yield and tuber number where Gemson excels compared to its main rival. Trial and commercial field scale results have shown that Gemson can produce more than 60% greater yield in the desirable <45mm fraction while also demonstrating a smaller percentage of waste in the form of outgrades and oversize, producing consistently excellent results for both growers and packers of the variety.

THE SUPERIOR CHOICE BABY POTATO

HISTORY

Breeder:
SCRI
Market Outlet:
UK Babies, France, Scandinavia, North Africa, Middle East
Parentage:
SCRI.85.C.4d.8 x Maris Peer
Introduction:
2007

KEY VARIETY POINTS

  • Very high tuber number variety with few in the oversize bracket
  • Average of 25 tubers per plant v’s 16 of Maris Peer
  • Lower seed rates than main rival Maris Peer with a higher marketable yield
  • Very resistant to Blackleg
  • Good resistances to both common and powdery scab
  • Long natural dormancy

CONTACT

Telephone:
01674 832022
07802 534454
Email:
murdie@grampiangrowers.co.uk  

DISEASE & PEST RESISTANCE

 GemsonPeer
Leaf Roll94
A-Virus
X-Virus
Y-Virus43
Foliage Blight44
Tuber Blight24
Blackleg84
Powdery Scab76
Wart DiseaseII
Potato Cyst Nematode Ro122
Potato Cyst Nematode Pa2,312
Common Scab55
Dry Rot3
Spraing
Other internal defects8
Slugs
Black Scurf6

AGRONOMIC CHARACTERISTICS

 GemsonPeer
Maturity55
Skin ColourYC
Flesh Colour55
Tuber Shape64
Eye Depth76
Uniformity66
Tuber Numbers
Freedom from outgrades76
Yield98
Dry Matter Content64
Dry Matter %2017
Dormancy65
Drought resistance76
Damage77
Bruising75

Planting Details

DUAL PURPOSE

Tuber CountPlant Popt/hat/ac72″ Beds (cm)72″ Beds (in)
40057,5317.192.9119.37.6
50059,5835.962.4118.67.3
60061,7875.152.0818.07.1
70064,1604.581.8617.36.8
80066,7234.171.6916.76.6
90069,4963.861.5616.06.3
1,00072,5153.631.4715.36.0
1,10075,8063.451.4014.75.8
1,20079,4093.311.3414.05.5
1,30083,3723.211.3013.35.2
1,40087,7523.131.2712.75.0

BABY PRODUCTION

Tuber CountPlant Popt/hat/ac72″ Beds (cm)72″ Beds (in)
40063,2857.913.2017.66.9
50065,5426.552.6517.06.7
60067,9665.662.2916.36.4
70070,5765.042.0415.76.2
80073,3954.591.8615.16.0
90076,4484.251.7214.55.7
1,00079,7673.991.6113.95.5
1,10083,3863.791.5313.35.2
1,20087,3503.641.4712.75.0
1,30091,7093.531.4312.14.8
1,40096,5273.451.4011.54.5

FERTILISER REQUIREMENTS KGS/HA

PlantingTop dressingTotal
Nitrogen(N)100-120120
Phosphate(P2O5)225225 (Soil index 1 or L)
Potash(K2O)160160 (Soil index 1 or L)