Variable descriptions


Stature

What is the growth habit of the plant?
Tall, Dwarf/Compact


Leaf Tip Color

What color are the tips of new leaves?
Green, Light Bronze, Bronze, Dark Bronze, Green or Bronze


Bean Size

How big are the coffee beans?
Below Average, Average, Large, Very Large

For reference, Caturra = Average, SL28 = Large, and Maragogipe = Very Large.


Optimal Altitude

What is the altitude at which quality and agronomic performance potential is maximized? This especially takes into account the variety’s expected cup quality and tolerance to coffee leaf rust and coffee berry disease. Optimal altitude depends on a farm’s latitude. Farms located close to the equator will have higher optimal altitudes than those farther north or south of the equator. First, locate your correct latitude, then find the corresponding optimal altitude.


Quality Potential at High Altitude

What is the potential for quality of this variety when grown at higher altitudes?
Very Low, Low, Good, Very Good, Exceptional


Yield Potential

How much fruit will the coffee tree produce?
Low, Medium, Good, High, Very high

For reference, Caturra = Good and SL28 = Good.


Coffee Leaf Rust

Is the plant susceptible to leaf rust?
Resistant, tolerant, susceptible

Coffee rust is a foliar disease of coffee caused by the fungus Hemileia vastatrix that causes defoliation and may result in severe crop losses. Note: Plant diseases are constantly evolving. A variety that is resistant to a disease today may not be resistant tomorrow; genetic resistance can break down due to the emergence of new races (evolution of the disease) or the movement of old races into new regions.


Coffee Berry Disease (CBD)

Is the plant susceptible to CBD?
Resistant, tolerant, susceptible

CBD is a coffee disease that affects the fruit. It is caused by the fungus Colletotrichum kahawe. Currently, CBD is not present in Central America. Note: Plant diseases are constantly evolving. A variety that is resistant to a disease today may not be resistant tomorrow; genetic resistance can break down due to the emergence of new races (evolution of the disease) or the movement of old races into new regions.


Nematodes

Is the plant susceptible to nematodes (specifically the species Meloidogyne and/or Pratylenchus)?
Resistant, tolerant, susceptible

Nematodes are microscopic animals that infect the roots and can cause wilting and death of the plant. Note: Plant diseases are constantly evolving. A variety that is resistant to a disease today may not be resistant tomorrow.


Year of First Production

When will the tree produce its first fruit?
Year 2, Year 3, Year 4


Nutrition Requirement

How much nutrition (e.g., compost, fertilizer) does this plant require?
Low, Medium, High, Very High


Ripening of Fruit

At what time in the harvest season will the tree fruit ripen?
Early, Average, Late, Very late
For reference, Caturra = Average


Cherry to Green Bean Ratio (Outturn)

What is the size of the bean in relation to the fruit?
Low, Average, High, Very High
For reference, Caturra = Average, SL28 =High


Planting Density

  • What spacing should you use for planting this variety?
  • 1000-2000 a/ha (using multiple-stem pruning)
  • 2000-3000 a/ha (using multiple-stem pruning)
  • Less than 2000 a/ha (using multiple-stem pruning)
  • 3000-4000 (using single stem pruning)
  • 4000-5000 a/ha (using single-stem pruning)
  • 5000-6000 a/ha (using single-stem pruning)

Note: In Central America, trees are typically pruned to have one main stem. In Africa, it is typical to prune trees for multiple (2-3) stems per tree. So, while tree-planting densities typically are much lower in Africa, each tree is fruiting relatively more because there are multiple main stems.


Lineage

What are the parents of this variety (when known) or what is its genetic lineage?


Genetic Description

  • Ethiopian/landrace
  • Bourbon-Typica group/Typica
  • Bourbon-Typica group/Bourbon
  • Bourbon-Typica group/Typica+Bourbon
  • Introgressed/Catimor
  • Introgressed/Sarchimor
  • F1 hybrid/introgressed
  • F1 hybrid/not introgressed

Learn more about coffee genetic groups, here.


Intellectual Property Right

Is the variety in the public domain, registered in the international database of varieties, called the International Union for the Protection of New Varieties of Plants (UPOV), or other?


Breeder

If the variety was created by a breeder, what is the name of the breeder?