A great diminution in the cultivation of the plantain has been occasioned in British Guiana by this blight or disease, which first made its destructive appearance in Essequibo, upwards of thirty years ago, where its ravages increased with such fatal intensity as to render the profitable growth of the plant almost hopeless; and up to this hour no one has been able to discover the immediate or remote cause of this extraordinary vegetable endemic; whether arising from the action of insects among the sheathes of the petioles of the leaves, or in the soil, or from organic decay of the plant, remains without solution. The last-named cause seems to be rejected, by the fact that the fructification of the plant is as healthy and abundant in parts of the colony where the blight does not prevail, both in number and size of the fruit upon the spike, as at any former period. On the east coast of Demerara, both the plantain and banana have been grown for more than twenty years upon the same land, without any attack of the disease, and without any extraneous manure or even lime having been applied, and the plants still exhibit great luxuriance, and produce their former weight of fruit.
The foliage of the plantain affords food and bedding, and is used for thatch, making paper, and basket making; and from its petioles is obtained a fine and durable thread. The tops of the young plants are eaten as a delicate vegetable; the fermented juice of the trunk produces an agreeable wine.
The abundance and excellence of the nutritive food which the plants of this valuable genus supply are well known; but of the numerous uses to which they are applied I may mention, the following:—
The fruit is served up both raw and stewed; slices fried are also considered a delicacy. Plantains are sometimes boiled and eaten with salt meat, and pounded and made into puddings, and used in various other ways. In their ripe state these fruits contain much starchy matter. From their spurious stems, the fibres of the spiral vessels may be pulled out in such quantity as to be used for tinder. M. textilis yields a fibre which is used in India in the manufacture of fine muslins, and the coarser woody tissue is exported in large quantities from Manila, under the name of white rope or Manila hemp. Horses, cattle, swine, and other domestic animals are fed upon the fruit, leaves, and succulent trunks.
The same extent of ground which in wheat would only maintain two persons, will yield sustenance under the banana to fifty. That eminent naturalist and elegant writer, the Baron Von Humboldt, states ("Political Essay on New Spain," vol. ii.) that an acre of land cultivated with plantains produces nearly twenty times as much food as the like space sown with corn in Europe. He refers to a place in Venezuela, where the most careful tillage was rendered to a piece of land, yielding produce supporting a humble population residing in huts, each placed in the centre of an enclosure, growing the sugar cane, Indian corn, the Papaw tree, and the Musa—a tropical garden!—upon the elaborate culture of which a whole family relied for subsistence.
Although from the extensive plantain walks in our colonies—which are seldom cultivated with a garden-like care—so large an average proportion may not be obtained as twenty times the production of wheat in Europe, yet I have had practical experience of the prodigious quantity of farinaceous matter obtainable from an acre of tolerably well-cultivated plantains, and no esculent plant requires less labor in its culture upon land suitable for its production. They are readily increased by suckers, which the old plants produce in abundance.
Lindley enumerates ten species of Musa, some of which grow to the height of 25 or 30 feet, but that valuable species M. Cavendishii, does not grow more than four or five feet high.
The bananas of the family of the Musaceæ, appear to be natives of the southern portion of the Asiatic continent (R. Brown, "Bot. of Congo," p. 51). Transplanted at an unknown epoch into the Indian Archipelago and Africa, they have spread also into the, New World, and in general into all intertropical countries, sometimes before the arrival of Europeans.
According to Humboldt it affords, in a given extent of ground, forty-four times more nutritive matter than the potato, and 133 times more than wheat. These figures must be considered as only approximative, since nothing is more difficult than to estimate the nutritive qualities of different aliments.
Musa paradisiaca is cultivated in Syria, to latitude 34 deg. Humboldt says it ceases to yield fruit at a height of 3,000 feet, where the mean annual temperature is 68 deg., and where, probably, the heat of summer is deficient.