Keralashree (Nutmeg)
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.
