development of high yielding sweetpotato cultivar
TRANSCRIPT
DEVELOPMENT OF HIGH YIELDING
SWEETPOTATO CULTIVAR
Budi Waluyo
PLANT BREEDING LABORATORY - FACULTY OF AGRICULTURE
BRAWIJAYA UNIVERSITY, MALANG, INDONESIA 2014
INTRODUCTION
Feed
(tonnes),
37,700.00 ,
2%
Seed
(tonnes),
168,973.90
, 9%
Waste
(tonnes),
187,000.00
, 10%
Food
(tonnes),
1,474,067.1
0 , 79%
Domestic supply (average 2000-
2009)
Import
Quantity
(tonnes),
25.20 , 0%
Export
Quantity
(tonnes),
9,748.60 ,
1%
Domestic
supply
quantity
(tonnes),
1,867,741.
10 , 99%
Production (Average 2000-2009)
FAO, 2012
West Java
Functional Food
BREEDING STRATEGIES
High Yielding
Early harvested cultivars
Tolerance to abiotic stress
Resistent to biotic stress
High nutritive value
Industrial Suitability
The General Principal
of Plant Breeding Activity
Management of Variability
Selection
Preliminary Test
Advanced Field Test
Cultivar release
Management of Variability
Sweetpotato is highly self incopatible and
highly dificult directional artificial crossing
Tetraploid and heterozigot
Seed harvested from outcrossing in
collection germplasm field
Each individual seed is a genotype
Selection
Quantify central tendency and dispersi of characters to be in the breeding
----- genetic parameters
x = means
s2 = variance
s = standar deviation
select individualy and propagated
Preliminary Yield Trials
Selected promosing clones propagated
and planted in a 5 m single rows, 20cm
Planting 100-200 clones
Advanced Yield Trials
Selected promosing clones propagated
and planted in a 10 m single rows, 20cm
Planting 50 clones
Cultivar release
Eight location
2 season
Scheme
Seed harvest Season
Planting individually
- Record potential genotypes and propagated
4 month
Preliminary field test
- 5 m single row, 20 cm
- Record high yield genotypes clones and mass
propagated
4-5 month
Advanced field test
-10 m single rows, 20cm
- Record promosing clone and mass
propagated
4-5 month
Cultivar release
-Multi environmental Trial
-8 location 2 season
8-10 month
20 – 24 month
CONCLUSION
sweet potato breeding cycle can be
accelerated through vegetative mass
propagation from selected genotypes in
the early selection
I love Sweetpotato,
Indonesia is secondary center of
sweetpotato diversity…..