Abstract
Vigour reduction in many tree crops is an essential element of highly productive, high density systems that is often achieved through rootstocks. Mangoes are large vigorous tropical trees that are traditionally grown at low density as suitable vigour reducing technologies are not commercially available. The aim of this work was to identify rootstock cultivars for mango that reduced scion vigour while maintaining or boosting yields. Ninety rootstocks are being evaluated for their ability to reduce vigour in two Australian mango scion cultivars from the National Mango Breeding Program (NMBP); ‘NMBP-1243’ and ‘NMBP-4069’. The evaluated rootstocks were sourced from a wide genetic range within Mangifera indica and related Mangifera spp. from the Australian National Mango Gene Bank and the Australian Mango Breeding Program. Rootstock-scion combinations were field planted at Walkamin, Queensland, Australia over three years, from May 2014 in randomised incomplete blocks. Tree height, canopy depth, canopy length (along the row), canopy width (across the row), rootstock trunk diameter (10 cm above the ground and 10 cm below the graft point) and scion diameter (10 cm above the graft) were measured every six months as indicators of tree growth and vigour. This is a report on the progress of 29 rootstocks from the May 2014 planting. There was a significant (p<0.05) effect of rootstock on tree height, canopy size and trunk diameter at 24 months. Seven rootstocks were consistently among the 13 lowest vigour trees for tree height, canopy length, canopy width and scion/rootstock trunk diameters, when ranked from lowest to highest vigour. These rootstocks show promise for high-density mango orchard systems. Evaluation is ongoing and will evaluate effect of rootstock on scion flowering and cropping.
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Claims 3
Claim · model-written summary
Rootstock had a significant effect on mango tree height, canopy size and trunk diameter at 24 months.
- Taxon
- mango
_from_India.jpg?width=60)
Mangifera indicat0 - Material
- rootstocke0
- Outcome
- tree height, canopy size and trunk diametere0
- Setting
- Walkamin, Queensland, Australiae3
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_from_India.jpg?width=500)
Verbatim
t0“Identifying vigour controlling rootstocks for mango”
e0“There was a significant (p<0.05) effect of rootstock on tree height, canopy size and trunk diameter at 24 months”
e3“Rootstock-scion combinations were field planted at Walkamin, Queensland, Australia over three years”
Claim · model-written summary
Seven rootstocks were consistently among the 13 lowest-vigour mango trees for tree height, canopy length, canopy width and scion/rootstock trunk diameters.
- Taxon
- mangoMangifera indicat0
- Material
- Seven rootstockse1
- Outcome
- tree height, canopy length, canopy width and scion/rootstock trunk diameterse1
- Direction
- lowerinferrede1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Identifying vigour controlling rootstocks for mango”
e1“Seven rootstocks were consistently among the 13 lowest vigour trees for tree height, canopy length, canopy width and scion/rootstock trunk diameters”
Claim · model-written summary
The authors state that these rootstocks show promise for high-density mango orchard systems.
- Taxon
- mangoMangifera indicat0
- Outcome
- promise for high-density mango orchard systemse2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Identifying vigour controlling rootstocks for mango”
e2“These rootstocks show promise for high-density mango orchard systems”