Sinta Papaya Hybrid Production Guide Part 1

Features:

  • The First Philippine-bred hybrid Papaya developed by the Institute of Plant Breeding, College of Agriculture, UP Los Banos (IPB)
  • Moderately tolerant to Papaya Ringspot Virus (PRSV)
  • Semi-dwarf tree with fruits averaging 1.2-2.0 kg
  • Fruit is sweet, yellow orange and firm

Land Preparation

Prepare the land thoroughly by plowing and harrowing.

  • High raised beds is advisable to prevent waterlogging. Make 1 m wide bed of 30 cm height and a distance of 2.5m to 3m.
  • Mulching of beds is recommended to conserve soil moisture as well as reduce the cost of weeding throughout the cropping season.
  • Make 20 cm deep hole in the middle of the bed at 3 m distance between rows.
  • Fill the hole with 1-2 kg manure and place basal fertilizer of 25 g 21-0-0 plus 50 g 14-14-14.
  • If bed making is not possible make sure to provide good drainage because waterlogging could easily reduce plant population.

Seedling Production and Management

  • Soak the seeds in clean water for 5 days and change the water daily.
  • Sow the seeds in the seedling trays using the sowing mixture of sand and coir dust at 1:3 ratio.
  • Drench Proplant or Previcur after sowing or after pricking at 40ml/16L of water.
  • Two days after germination, transfer (prick) each seedling to polyethylene bags (2.5″x5″) containing 3:1:1/2:1/2 coir dust, sand, sterilized garden soil and sterilized manure, respectively.

Fertilizer Application at Seedling Stage

Days Application Fertilizer
0
7
14
21
28
drench
drench
drench
drench
drench
Calcium nitrate 30g/16L water
Calcium nitrate 30g/16L water
Calcium nitrate 40g/16L water
Calcium nitrate 50g/16L water
Calcium nitrate 50g/16L water

Transplanting

  • 1,100 to 1,340 plants are needed per hectare, depending on the distance of planting.
  • Transplant late in the afternoon, remove the plastic bag with the root intact into the soil,
  • Fill the hole completely with topsoil.
  • Replanting should be done after 1 week to replace missing hills.
  • If possible, drench with Proplant at 40ml/16L of water or Alliete at 50g/16L of water after transplanting.

Irrigation

  • Irrigate weekly during the dry season
  • If there is no bed, provide enough drainage by making canals near the base.
  • When fruits are already maturing, water should be kept to the minimum to hasten fruit maturity.

Monthly General Fertilization Recommendation

Months after
Transplanting
Fertilizer Methods of
Application
Amount/Hill
0 – during transplanting
1-3
same
4
same
5 onwards
Start of fruit development
same
Calcium nitrate
Complete
21-0-0
Complete
Borax
Complete
add 0-0-60
Complete
Drench
Sidedress
Sided ress
Sidedress
Sidedress
Sidedress
Sidedress
Sidedress
7.5g/L at 200ml
50g/hill
25g/hill
100g/hill
20-40g/hill
100/g/hill
50g/hill
lOOg/hill

Harvesting

  • Harvest the fruits when a tinge of yellow start to appear between the apical ridges or approximately 9 months after transplanting.
  • Harvest between 9 am – 3 pm to minimize latex flow that may cause injury to the peel.
  • Avoid dropping of the fruit to minimize fruit injury and rotting.
  • Place the fruit in a padded container to minimize bruising.

 

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