Part 28 (2/2)
The season has been exceptionally good for the growth of all ornamental stock. All came through last winter in good shape. A late frost killed many of the early flowering plants, and this prevented the forming of fruit on such plants as barberry and wahoo. About 400 seedling paeonies flowered again this year. Some of these are promising. An excellent block of aquilegia was flowered. A trial ground of some hundred or more annuals was maintained and proved very interesting. It is hoped that many more annual novelties may be tried out this year. The perennial garden established last year was added to and furnished something of interest the whole season. It will be the aim of the Division to have in this garden all the annuals and perennials of value in this section.
Some new shrubs were added by purchase and through the Bureau of Plant Industry. The hedges have proved an interesting exhibit again this year, and it is planned to add a number of new ones to the group next season.
About seventy-five varieties of chrysanthemums were flowered this autumn and were much enjoyed by our visitors.
_Fruit._--This year has been a very poor fruit year owing to the freeze on May 18, when the thermometer dropped to 26 degrees Fahrenheit. At that time a very promising crop of apples was frozen on the trees.
Currants and gooseberries were also frozen on the bushes, and the young shoots were frozen on the grape vines. Later the grape vines sent out secondary shoots which bore a small crop of late maturing fruit.
Regardless of the heavy freeze an apple was found here and there throughout the orchard, although no one variety seemed to be particularly favored. On one-year-old Compa.s.s and Dyehouse cherry trees a few fruits were borne, and a similar amount of fruit was produced on one-year-old Sapa and Skuya plums. The old plum seedling orchard, which is located to the south of the college buildings and is partially protected by a wooded hill to the north, gave about five per cent of a crop. The one-year-old raspberries and blackberries bore a small crop, and the new strawberry bed, containing over 150 varieties, yielded a good crop. Records were made on the blossoming dates of practically all the varieties grown at the Station, and complete descriptions were made of all the strawberry flowers, fruits and plants.
[Ill.u.s.tration: Cla.s.s in propagation at work at Minnesota State Agricultural College.]
Plants were taken from the strawberry bed and used for setting out a new bed, which is located on level and uniform ground. By another year sufficient data should be at hand to report on the performance of the varieties tested.
The aphids were very numerous and unfortunately caused the defoliation of all the currants with the exception of the blacks. A new sidewalk through the currant patch necessitated the transplanting of about one-half of the varieties, and so the prospect for a good currant crop next season is poor. The mildew attacked the Poorman gooseberry very severely but did practically no damage to the native varieties, as the Carrie and Houghton. Blight was a negligible factor, and what little appeared was removed as soon as noted. This year's rest, especially as it has been coupled with a good growing season, should be very favorable for an abundant crop in 1916.
In summing up the varieties at the Trial Station, it is of interest to note that the following number are under observation: 235 apple, 1 apricot, 15 cherry, 3 peach, 6 pear, 70 plum, 23 blackberry, 3 dewberry, 14 red currant, 3 black currant, 2 white currant, 13 gooseberry, 26 grape, 4 black raspberry, 22 red raspberry, 1 purple raspberry and 157 strawberry.
_Vegetables._--The vegetable work has been concentrated on the bean, cuc.u.mber, lettuce, pea, onion, potato and tomato. The chief work with the bean and pea has been to isolate desirable canning types from the present varieties. Selection has also been carried on with the lettuce, with the object of securing a head type which matures uniformly. Onion bulbs of various types have self-fertilized, and desirable fixed strains will be separated if possible. Incidentally, the inheritance of various types and colors of the onion is under observation. In the tomato the influence of crossing on yield and earliness has been studied. Increases nearly as high as five tons have been obtained, and the prospects are very bright for securing valuable combinations for gardeners who use greenhouses and high-priced land. Results of this work will probably soon be published in a station bulletin.
[Ill.u.s.tration: Chrysanthemums in flower in University Farm greenhouses.]
A better type of greenhouse cuc.u.mber is being sought by combining the European and White Spine varieties. From past experience the author knows that a uniform type that is well adapted to market purposes can be obtained, and the only question will be its productiveness.
Unfortunately hybridizing was not performed early enough in the season, and disease prevented the making of crosses. This coming season the work will be repeated.
The main work of the year has been on the potato, and the chief problem has been on the determination of the cause of degeneracy. Incidentally, many varieties have been tested, and the exchange of seed with the Grand Rapids, Crookston and Duluth stations has been started. If possible, the effect of varying climatic and soil conditions on the potato will be noted.
A few vegetable varieties have been tested and among them the Reading Giant, a rust-proof asparagus, has proved promising. Malcolm, the earliest Canadian sweet corn, ripened very early and will be tested further. Was.h.i.+ngton, a late sweet corn ripening between Crosby and Evergreen, made an exceptionally good showing and may prove of much value for market purposes. The Alacrity tomato was found to be similar to the Earliana and superior in no way. Bonny Best and John Baer tomatoes produced smooth, desirable fruit and are deserving of a wide test.
The much advertised ”seed tape” was given a trial, and it proved satisfactory in most cases. For kitchen gardeners who are ignorant of planting distances, methods of planting and varieties, and who can afford to pay a higher price for their seed, the tape may prove of value, that is, if a high grade of seed is maintained.
A CORRECTION.--In O. W. Moore's interesting article on ”s.e.xuality in Plants,” which appeared in the November (1915) number of The Horticulturist, two errors were present. The first is merely typographical, as Kaelreuter's name, page 411, should be spelled Kolreuter. The second, however, is misleading, as it states that the process of fertilization is called ”Mendel's Law.” It is true that Mendel's Law is based upon fertilization, but it concerns simply the splitting up of certain characters into definite mathematical proportions. For example, Mendel found that when he crossed a yellow and green pea the first generation produced only yellow peas. These peas when self-fertilized split up into practically three yellows to one green. By self-fertilizing the progeny of the second generation it was found that one-third of the yellows bred true for yellow, and two-thirds of the yellows broke up into yellow and green, showing that they were in a heterozygous condition, and that all the greens bred true for green.
At the present time this method of segregation has been proved to hold for many easily differentiated characters in both the animal and plant kingdom, but much more experimental work will have to be done before it can be said to hold for all inheritable characters.--Prof. Richard Wellington, University Farm.
Rose Culture.
MARTIN FRYDHOLM, ALBERT LEA, MINN.
(Annual Meeting, 1916, So. Minn. Hort. Society.)
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