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I have asked Macmillan if they want to make a circular of this. MANUAL OF TROPICAL AND SUBTROPICAL FRUITS. The major tropical and subtropical fruits, -- the banana, coconut, pineapple, citrus fruits, olive, and fig, -- have received much attention from horticulturists, and the literature regarding them is ample. Concerning the numerous other fruits which may be cultivated in the tropical and subtropical regions of the world, however, there has never existed, until the publication of the present work, a compendium of horticultural information. More than one hundred species are here described, the information regar …

… roots, and still more vigorous stock is used as a foundation for the orange and lemon. Looking forward to the future of the pomelo in California. Western growers are making a great progress for this valued fruit, but the growers will have to overcome the greener faults in growing, naming and marketing the crop and educate the masses to its use and value. SPROUTING AHUACATES. PUEBLO VIEJO (Vera Cruz, Mex.) Jan. 30, 1912.--(Editor Western Em- pire): Will you kindly mail some Ahuacate seeds. You will place them on a dish with some nice damp sand, cover them with a piece of glass and keep one-half inch of water on th …

… n the Department of Agriculture. The pages that follow, therefore, represent answers to questions proposed by the writer and answered by the several experts to whom the writer gladly acknowledges his debt. Propagation methods, practices and staff for large annual production of avocados and mangoes: The questions as proposed to Mr. Harold F. Loomis, Senior Agronomist, in charge of the U. S. Plant Introduction Garden, Coconut Grove, Florida, were briefly: If you were to be asked to prepare a project that would have an annual output of 10,000 budded avocados and 10,000 budded, or is it grafted, mangoes, 1. How much …

stead the largest collection of varieties of the Avocado, mango and several others. Basic work on vegetative propagation of tripical fruit trees was done some years ago at the South Campus of the University of Miami (Florida) by S.John Lynch, Roy Nelson and others. Other sources of information are too numerous to mention, but it should be added that the material in this book on Temperate Zone fruits in the tropics - a subject to which serious attention has only been given in the last 25 years - has been accumulated mainly in the highlands of Guatemala and at Escuela Agricola Panamericana in Honduras. Finally, we …

plant avocados, and we refer to the seedlings. Avocados can be budded as easily as the orange, and if there is any one who tries to improve a fruit already perfect, it is easy to have the budding done, even if one cannot do it themselves." FERTILIZATION OF FRUIT TREES. It seems strange to the writer that so little, if any, attention has been given to the assisting of fertilization of fruit trees. The avocado blooms freely but drops a very large portion of the bloom before the fruit sets. The Mulgoba mango is considered by many who are planting groves because of the well-known fact that while it blooms profusely, …

… back a month ago and I am once more getting into the job here. I have been over to see Arturo Falla whose work is coming along beautifully. One of these numbered peaches of which you sent budwood came into fruit this year and he thinks very highly of it. He says it is a "meleocoton" but I am not sure just what he means. That Tennessee pear, number something like 10-27 or 27-10, - you will remember what it is; I always forget it - bore a fine crop this year and he is crazy about it. He is propagating all he can, from the trees her has, and is putting the majority on P.calleryana of which we now have a tremendous s …

6 Why veneer graft, though the word side is necessary I cannot see. In the past 25 years this graft has simply taken over the field of fruit tree prop- agation in many parts of tropical Am- erica, with the exception of Citrus, for which shield budding remains the uni- versal practice, and a few cases such as the lychee, which are layering, with based on the use of polyethylene wraps, gives perfect results. This method has greatly facilitated the work of nursery- men who propagate trees which are difficult to graft.

… of a seedling is often employed, thereby avoiding the possibility of vegetative sprouts from the stock. What adaptations of these practices may be developed in Colombia can be proven only by trial. Another propagation method, a modification of grafting which may require special study for tropical plants such as mango, is the approach graft or the inarch. This involves essentially the maintenance of two collections of plants in pots, one, the stock plants to receive the graft, the other, the parent plants that supply the scion for inarching. The one cultural difficulty in this system is the production and rapid ut …

4 point, and it might well be mentioned that the practice of cutting off the tip of the seed - the apical end, (for many avocado seeds are round) with the object of hastening germination, has times been carried to an extreme in Central America. Cutting off the tip, which may be helpful, does not mean cutting away one third to one half of the seed. The Annonas, as grafted varieties, have not yet come in for much attention in tropical America but interest is growing. In some instances it may be best to graft on seedlings

Last photograph No. 3005 Last herbarium No. 1372 Last plant seed No. 677 THE AGRICULTURAL NEWS. FEBRUARY 5, 1921. BOOK SHELF. MANUAL OF TROPICAL AND SUBTROPICAL FRUITS, by Wilbur O'Conor, Agricultural Explorer, United States Department of Agriculture. MacMillan & Co., Ltd., London and New York. 474 pages. 12s. net. This book supplies a mass of information of the greatest value to all interested in the culture of tropical fruits, especially of those not generally known or widely cultivated. The author, who probably is the greatest authority on the subject, speaks from personal experience of many years in various p …

Antigua, 20 Nov 1941 Mr Rosengarten: Consideration of the grafting problem, it seems to me, must taken into account the following factors and possible a few others with which we are not yet familiar: 1. Other things being equal, some varieties or clones will give a much higher percentage of "takes" or successes than other varieties. We may find that this ranges from as low as 30 or 40% with varieties which are hard to graft, to 90% with those which are easy to graft. This is in line with horticultural experience with many other tree crops. 2. To obtain a high percentage of successes in grafting, cion wood must be …

- 2 - Succirubra from Belgian Congo: Dr. Krukoff will arrange with contacts in Belgian Congo that seed be sent to Guatemala. (Krukoff Calisaya): The employment of this material as root-stock for grafting purposes will depend, of course, on the vigor seedlings show in future. (A-2). Grafting Problem. It was noted that success in grafting depends on, In general: (1) Inherent ability of scion, (2) Skill in grafting, (3) Extent of losses subsequent to grafting. Certain clones apparently lend themselves to grafting more readily than others. Ultimately, we shall undoubtedly have to concentrate our grafting on this type …

it is desired to carry them on in this way, or set out in the nursery to be grown until of suitable size to bud. By Budding... It is only during the past season or two that much attention has been given to budding the avocado in California, although previously a few nursery-men most interested in this fruit had tried it. Having no experience of their own in the budding of this particular tree, most of those who have budded during the past year or two have simply applied the methods they would use for citrus fruits, while a few others have followed the instruction given in various publications by those who have ex …

22 qualifications of a gardener) grafting by approach, still used more than any other method), was unquestionably the method employed from the earliest times. This consists of placing potted seedlings (rootstocks) on platforms around a tree it is desired to propagate; cutting a strip of bark of one side of its stem, followed by a similar cut made on a small branch of the parent tree, then binding together the two cut surfaces. When a union has been formed, the scion branch is cut from the parent tree below the graft union, and the top of the rootstock cut off above it. This a simple but laborious process, but in- …

29 for these—to send out strong sprouts; removing all but three or four of these on each stub, and when these selected sprouts have attained a diameter of an inch or so, veneer grafting them with scions of the desired variety. When the grafts have attained a length of 8 to 12 inches the tips should be cut off the top to encourage branching. It has been recommended that not all of the sprouts from the stubs be cut away; several should be left for a while to furnish shade for the grapes. Top-working should be done early in the rainy season. In very dry climates irrigation is necessary until the top- worked tree has …

vitamins in good quantity. Propagation is commonly by seed, but it is worthwhile to attempt to root the suckers around the base of the palm in the case of seedless specimens. Seedlings may begin to bear in 3 or 4 yrs. under favorable conditions. Mature palms should yield 4 or 5 large bunches of fruit a year. The plants should be spaced about 15 ft. apart, and an orchard should produce 10,000 to 20,000 lb. of fruit annually for many years. Because it is so easy to grow and yields so abundantly of nutritious, palatable fruit, the pejibaye deserves much more extensive cultivation. It is adapted to humid, tropical lo …

… ght seal. Their advantage is the large number of scions which can be made from a limited supply of twigs, and the shorter time required from planting seeds to setting grafted trees in the orchard. Approach-grafting, often incorrectly termed inarching, is the easiest method so far as technique is concerned, but one which often produces weak unions and which requires a great deal of labor compared to other methods. A potted seedling is supported close to a suitable twig of the scion variety, a shallow lateral cut a couple of inches long is made on both stock and scion, and the cut areas are placed together and boun …

5. Patch-budding has also been used successfully, both the usual type and the modified Forkert, preferably on rootstocks about 1 inch in diameter. Scions should be of the same thickness. The seated patch of bud and bark is conveniently held in place by a somewhat larger patch of vinyl plastic, tied on with plastic strips. Guava trees already in production can be topworked to better varieties by the standard method of cleft-grafting, performed early in the season of most active growth. Another good method of top-working is to induce the development of many sprouts by pruning the trees heavily, then when the sprout …

your department is not questioned, and it is being appreciated all over the South in the assistance you give to the fruit and kindred interests. For a college recognized as a center from which emanates a most practical influence in horticulture, I could give numerous examples in which steady influences originating in your department have been felt. You have much to rescue the cause of horticultural commissioner from politics and other baneful perils; you have done much to enlighten the fruit growers upon the benefits of pest controlling; your department has enlivened its surroundings with a corps of young assista …

Antigua, Guatemala, 16 October 1957 Dr C A Schroeder College of Agriculture, UCLA Los Angeles 24, California. Dear Art: The boys over in Salvador are really making some progress on their program of fruit improvement and distribution; they are tied up on Citrus however, until they can get some Cleopatra seed from the States next month, and we are afraid we may not really get going on Diospyros kaki this season. We have been seeing some really fine fruits of Hachiya at El Pintado here in Antigua and can get budwood, but our problem is rootstocks. I wrote to Knowles Ryerson asking him to get us some from the Welfsil …