A field experiment was conducted at National Citrus Research Program (NCRP), Paripatle,
Dhankuta to determine the best grafting height for the highest success of grafting and the maximum
growth of sapling during r' January to 30'h December, 2010. Scions were collected from the
mother plant 'NCRP-49' grown under screen house and grafted on to one-year-old trifoliate orange
seedling rootstocks by shoot-tip method at 4 em, 8 em, 12 em, 16 em and 20 em height from the
collar region as the treatment. The grafts were planted inside the closed tunnel made from bamboo
splits, jute and plastic sheet at JOx8 em spacing in 64x/OO em experimental plots laid out in
randomized complete block design (RCBD) with four replications containing 80 grafts per plot.
Treatments were allotted on the experimental plots randomly. The success of grafting was not
affected by the height of grafting, however growth of sapling was found significantly affected by the
height of grafting. Observation taken on sapling after one year of grafting revealed that the
maximum scion height (42.13 em), the highest number of/eaves per sapling (47.50), the highest
growth of scion diameter (55.61%), maximum length of primary branches (31.19 em), maximum
number of secondary branches per sapling ((3.24), the highest length of secondary branches (11.59
em), the highest canopy volume (15440 cm3
) and the highest graft spread (24.35 em) were found on
sapling grafted at 16 em height of the trifoliate orange rootstock. Hence, from the study it is
concluded that the most suitable height of grafting acid lime on trifoliate orange rootstock was 16
em.

A field experiment was conducted at National Citrus Research Program (NCRP), Paripatle,
Dhankuta to determine the best grafting height for the highest success of grafting and the maximum
growth of sapling during r' January to 30'h December, 2010. Scions were collected from the
mother plant 'NCRP-49' grown under screen house and grafted on to one-year-old trifoliate orange
seedling rootstocks by shoot-tip method at 4 em, 8 em, 12 em, 16 em and 20 em height from the
collar region as the treatment. The grafts were planted inside the closed tunnel made from bamboo
splits, jute and plastic sheet at JOx8 em spacing in 64x/OO em experimental plots laid out in
randomized complete block design (RCBD) with four replications containing 80 grafts per plot.
Treatments were allotted on the experimental plots randomly. The success of grafting was not
affected by the height of grafting, however growth of sapling was found significantly affected by the
height of grafting. Observation taken on sapling after one year of grafting revealed that the
maximum scion height (42.13 em), the highest number of/eaves per sapling (47.50), the highest
growth of scion diameter (55.61%), maximum length of primary branches (31.19 em), maximum
number of secondary branches per sapling ((3.24), the highest length of secondary branches (11.59
em), the highest canopy volume (15440 cm3
) and the highest graft spread (24.35 em) were found on
sapling grafted at 16 em height of the trifoliate orange rootstock. Hence, from the study it is
concluded that the most suitable height of grafting acid lime on trifoliate orange rootstock was 16
em.