Vegetative propagation of promising jackfruit (Artocarpus heterophyllus Lam.) types
By: Ashok Madala.
Contributor(s): Rajagopalan, A (Guide).
Material type:
BookPublisher: Padannakkad Department of Pomology and Floriculture, College of Agriculture 2018Description: 93p.Subject(s): Pomology and Floriculture | Fruit ScienceDDC classification: 634.1 Online resources: Click here to access online Dissertation note: MSc Summary: The investigation on ‘Vegetative propagation of promising jackfruit
(Artocarpus heterophyllus Lam.) types’ was conducted at the College of Agriculture,
Padannakkad, Kasaragod during the period 2017 - 18 to evaluate the success of
epicotyl and softwood grafting in promising types of jackfruit and to examine the
variation among jackfruit types with respect to grafting methods. The experiment
comprised of five promising types of jackfruits viz., V1 - Varikka - early bearing (KJ
186), V2 - Gumless (KJ 397), V3 - Seedless (KJ 180), V4 - Cluster (KJ 182) and V5 -
Muttam varikka (KJ 231) and two method of grafting i.e., M1 - epicotyl grafting and
M2 - softwood grafting. The experiment was laid out in factorial CRD with three
replications.
The different jackfruit types showed significant influence for all the
parameters studied except number of branches. Type V2 resulted in earliest sprouting
(26.50 days) and maximum sprouting percentage of grafts (41.91 per cent) while type
V3 recorded maximum survival percentage (66.94 per cent) and shoot length (8.13
cm). Maximum shoot girth (1.50 cm), number of nodes (7.50), number of leaves (7),
length of leaf (12.34 cm) and breadth of leaf (5.64 cm) were observed in type V4. On
the other hand, the maximum days to sprouting (30.33 days), minimum sprouting
percentage (28.77 per cent), minimum shoot length (6.43 cm) and minimum number
of leaves (5.17) were recorded in type V5 while type V1 showed minimum survival
percentage (38.89 per cent), shoot girth (1.15 cm), leaf length (8.41 cm) and breadth
of leaf (4.22 cm).
Among the methods of grafting, the results on percentage of sprouting and
survival as well as number of branches were not significant while all other parameters
showed significant effects. Epicotyl grafts resulted in early sprouting of buds (26.00
days) and maximum shoot length (7.36 cm) whereas maximum shoot girth (1.36 cm),
number of nodes (6.13), number of leaves (6.33), length of leaf (11.16 cm) and
breadth of leaf (5.29 cm) were observed in softwood grafts.
The interaction of varieties and methods of grafting were significant in most
of the characters recorded. Interaction V2 x M1 was found better in early sprouting
(24.33 days) and V2 x M2 resulted in maximum sprouting percentage (46.90 per cent)
while V3 x M1 gave maximum survival of grafts (86.67 per cent).
Hence, for the mass multiplication of Seedless type epicotyl grafting could be
adopted and for other types like early bearing varikka, Gumless and cluster, softwood
grafting could be practiced.
| Item type | Current location | Collection | Call number | Status | Date due | Barcode |
|---|---|---|---|---|---|---|
Theses
|
KAU Central Library, Thrissur Theses | Reference Book | 634.1 ASH/VE (Browse shelf) | Not For Loan | 174354 |
Browsing KAU Central Library, Thrissur Shelves , Shelving location: Theses , Collection code: Reference Book Close shelf browser
MSc
The investigation on ‘Vegetative propagation of promising jackfruit
(Artocarpus heterophyllus Lam.) types’ was conducted at the College of Agriculture,
Padannakkad, Kasaragod during the period 2017 - 18 to evaluate the success of
epicotyl and softwood grafting in promising types of jackfruit and to examine the
variation among jackfruit types with respect to grafting methods. The experiment
comprised of five promising types of jackfruits viz., V1 - Varikka - early bearing (KJ
186), V2 - Gumless (KJ 397), V3 - Seedless (KJ 180), V4 - Cluster (KJ 182) and V5 -
Muttam varikka (KJ 231) and two method of grafting i.e., M1 - epicotyl grafting and
M2 - softwood grafting. The experiment was laid out in factorial CRD with three
replications.
The different jackfruit types showed significant influence for all the
parameters studied except number of branches. Type V2 resulted in earliest sprouting
(26.50 days) and maximum sprouting percentage of grafts (41.91 per cent) while type
V3 recorded maximum survival percentage (66.94 per cent) and shoot length (8.13
cm). Maximum shoot girth (1.50 cm), number of nodes (7.50), number of leaves (7),
length of leaf (12.34 cm) and breadth of leaf (5.64 cm) were observed in type V4. On
the other hand, the maximum days to sprouting (30.33 days), minimum sprouting
percentage (28.77 per cent), minimum shoot length (6.43 cm) and minimum number
of leaves (5.17) were recorded in type V5 while type V1 showed minimum survival
percentage (38.89 per cent), shoot girth (1.15 cm), leaf length (8.41 cm) and breadth
of leaf (4.22 cm).
Among the methods of grafting, the results on percentage of sprouting and
survival as well as number of branches were not significant while all other parameters
showed significant effects. Epicotyl grafts resulted in early sprouting of buds (26.00
days) and maximum shoot length (7.36 cm) whereas maximum shoot girth (1.36 cm),
number of nodes (6.13), number of leaves (6.33), length of leaf (11.16 cm) and
breadth of leaf (5.29 cm) were observed in softwood grafts.
The interaction of varieties and methods of grafting were significant in most
of the characters recorded. Interaction V2 x M1 was found better in early sprouting
(24.33 days) and V2 x M2 resulted in maximum sprouting percentage (46.90 per cent)
while V3 x M1 gave maximum survival of grafts (86.67 per cent).
Hence, for the mass multiplication of Seedless type epicotyl grafting could be
adopted and for other types like early bearing varikka, Gumless and cluster, softwood
grafting could be practiced.
There are no comments for this item.