That cacao and its wild congenors naturally seek the shelter of well-shaded forests is well established; but having seen trees in these Islands that were fully exposed at all times showing no evidences of either scald, burn, or sun spot, and in every respect the embodiment of vigor and health, we are fully justified in assuming that here the climatic conditions are such as will permit of taking some reasonable liberties with this time-honored practice and supply needed nitrogen to the soil by the use of cheap and effective “catch crops,” such us cowpeas or soy beans.
Here, as elsewhere, an Erythrina, known as “dap-dap,” is a favorite shade tree among native planters; the rain tree (Pithecolobium saman) is also occasionally used, and in one instance only have I seen a departure from the use of the Leguminosæ, and that in western Mindanao, there is a shade plantation composed exclusively of Cananga odorata, locally known as ilang-ilang.
While not yet prepared to advocate the total exclusion of all shade trees, I am prepared to recommend a shade tree, if shade trees there must be, whose utility and unquestioned value has singularly escaped notice. The tree in question, the Royal Poinciana (Poinciana regia), embodies all of the virtues that are ascribed to the best of the pulse family, is easily procured, grows freely and rapidly from seed or cutting, furnishes a minimum of shade at all times, and, in these Islands, becomes almost leafless, at the season of maturity of the largest cacao crop when the greatest sun exposure is desired.
The remaining preparatory work consists in the planting of intersecting wind breaks at intervals throughout the grove, and upon sides exposed to winds, or where a natural forest growth does not furnish such a shelter belt. Unless the plantation lies in a particularly protected valley, no plantation, however large in the aggregate, should cover more than 4 or 5 hectares unbroken by at least one row of wind-break trees. Nothing that I know of can approach the mango for this purpose. It will hold in check the fiercest gale and give assurance to the grower that after any storm his cacao crop is still on the trees and not on the ground, a prey to ants, mice, and other vermin.
[1] “Shade in Coffee Culture.” U. S. Dept. Ag., Washington, 1901.
Selection of Varieties.
All the varieties of cacao in general cultivation may be referred to three general types, the Criollo, Forastero, and Calabacillo; and of these, those that I have met in cultivation in the Archipelago are the first and second only. The Criollo is incomparably the finest variety in general use, and may perhaps be most readily distinguished by the inexperienced through the ripe but unfermented seed or almond, as it is often called. This, on breaking, is found to be whitish or yellowish-white, while the seeds of those in which the Forastero or Calabacillo blood predominates are reddish, or, in the case of Forastero, almost violet in color. For flavor, freedom from bitterness, facility in curing, and high commercial value, the Criollo is everywhere conceded to be facile princeps.
On the other hand, in point of yield, vigor, freedom from disease, and compatibility to environment it is not to be compared with the others. Nevertheless, where such perfect conditions exist as are found in parts of Mindanao, I do not hesitate to urge the planting of Criollo. Elsewhere, or wherever the plantation is tentative or the conditions not very well known to the planter, the Forastero is to be recommended. The former is commercially known as “Caracas” and “old red Ceylon,” and may be obtained from Ceylon dealers; and the latter, the Forastero, or forms of it which have originated in the island, can be procured from Java.