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Keralashree (Nutmeg)

Attribute Details
Year of Release 2013
Pedigree Seedling selection from the seedlings raised from an elite mother tree from Burliar, Nilgiris, Tamil Nadu
Areas of Adoption All nutmeg growing areas of Kerala
Crop Duration 6 years for first harvest
Yield 480 kg mace/ha at 8" year 3122 kg nuts/ha
Potential yield 4800 kg mace/ha at 25" year 31220 kg nuts/ha
Quality Attribute
  • Nut oil:5.9%
  • Mace oil:7.5%
  • Nut recovery:70%
  • Mace recovery:35%
  • Oleoresin in mace:9.1%
  • Butter in nut:24.9%
  • Myristicin in nut:1.6%
  • Myristicin in mace oil:9.4 %
  • Elemicin in nut oil:1.4%
  • Elemicin in mace oil:0.07%
  • α- pinene in nut oil (%):7.1%
  • α- pinene in mace oil:4.7%
  • Sabinene in nut oil (%):35.4%
  • Sabinene in mace oil (%):29.4%
Morphological Characters
  • Age at first flowering of graft:4 years after planting
  • Flowering:Profuse
  • Colour of ripe fruit:Yellow
  • Colour of aril:Dark red
  • Colour of seed:Brownish black
  • Shape of fruit:Elongate/oblong
  • Size of nut:Bold
  • Mace:Entire, thick and dark red
  • Fresh weight of fruit:75-100 g
  • Fresh weight of seed:13-16 g
  • Dry recovery of nut:70%
  • Fresh weight of aril:4.5 to 6.0 g
  • Dry recovery of aril (mace):35%
  • Mean yield/graft at 10th year after planting:2000 fruits
  • Dry nut yield/graft at 10th year after planting:21 kg
  • Nut yield /ha @ 360 graft:7560 kg
  • Mace yield/graft at 10th year after planting:4.2 kg
  • Mace yield /ha@360 grafts:1512 kg
 
Reaction to major pests and diseases

Low incidence of fruit rot caused by Diplodia spp.

Special characteristics

First nutmeg variety developed by Farmers participatory breeding Very bold nut with thick and entire mace Wide adaptability. The mace and nut oils are rich in sabinene and myrcene with low myristicin and elemicin.