PB 311 Rubber: Characteristics
PB 311 is a registered rubber variety. It was registered with the National Seed Industry Council in 2001 as NSIC 2001 Rb 07. Prang Besar bred it.
Compare it with the others in our rubber variety finder, or see every crop variety we list. For the crop itself, read our guide: Land preparation for tree crops.
Key facts about PB 311 rubber
| Trait | What the record shows |
|---|---|
| Registration | NSIC 2001 Rb 07 |
| Year approved | 2001 |
| Breeder or owner | Prang Besar |
| Tree growth habit | Erect, Smooth |
| Tree growth vigor | Strong |
| Yield at Tapping S2D2 100 percent Intensity (kg renewed bark (15 yrs. of tapping) | 2245.8 |
| Latex dry rubber content (percent) | 36.4 |
| Latex color | Pale Yellow |
When does it bear, and how much?
A registered tree variety is described from its mother tree, not from trial plots. A grafted or marcotted tree bears years sooner than one grown from seed, and its yield climbs as the tree grows.
anee.io keeps the records of each block of trees, from fertilizer to harvest, with the growth stages and weather beside them.
Is it resistant to pests and diseases?
| Pest or disease | Rating | What it means |
|---|---|---|
| percent wind damage | 1.2E 2 | As noted in the record |
| Brown bast incidence | 9.5200000000000007E 2 | As noted in the record |
| Odium reaction | Moderate | As noted in the record |
| Collectrichium reaction | Light | As noted in the record |
| Black strip reaction | 2 to 1 to 5 Disease strip | As noted in the record |
| Mouldy rot reaction | 1 to 25 percent tapping cut with veerosis | As noted in the record |
The pests and diseases that hit rubber fields most often: anthracnose, mealybug, powdery mildew. Our pest finder and disease finder help you name what you see.
Where and when to plant PB 311 rubber
Rubber clones differ in latex yield and in how they take tapping and wind. Plant budded clones from an accredited nursery. A registered tree variety is a selection from one proven mother tree, and only grafted, budded or marcotted plants carry its traits. A seedling grown from its seed can turn out quite different. So buy from a nursery accredited by the Bureau of Plant Industry, and ask which mother tree the scions came from. Before planting, get the field ready with our guide: Land preparation in the Philippines.
Before you buy planting material
- Buy grafted or budded plants from an accredited nursery, with the variety name on the tag.
- Ask your municipal agriculturist or nearby farmers how it did in your area last season.
- Plant a few trees first if the variety is new to your area, before you fill the whole farm.
- Write down the planting day, inputs and harvest, so you can compare varieties on your own ground. anee.io keeps these records for you.
Set the planting day of each lot and anee.io dates every task to harvest, with the weather beside it. Free on the Libre plan.
Start freeRubber varieties like this one
These are the closest matches among the rubber varieties we list. So if seed of this one is hard to find, compare these first.
Where can I buy planting material of PB 311?
See how PB 311 will do on your farm
With Libre + Anee, see its full record: how it yields, its strengths and weaknesses against pests, diseases and the weather, and whether it fits your farm, your season and your soil.
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