Gemson

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 832033
07592 09175
Email:
dave.ramsay@grampiangrowers.co.uk  

DISEASE & PEST RESISTANCE

GemsonPeer
Leaf Roll94
Y-Virus43
Foliage Blight44
Tuber Blight24
Blackleg84
Powdery Scab76
Potato Cyst Nematode Ro112
Potato Cyst Nematode Pa2,322
Common Scab55

AGRONOMIC CHARACTERISTICS

GemsonPeer
MaturitySecond early5
Skin ColourWhiteC
Flesh ColourCream5
Tuber ShapeShort Oval4
Eye DepthShallow/Medium6
Freedom from outgrades76
Yield30 t/ha
Dry Matter %2017
Dormancy65

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)