The chinkapin is related closely to the chestnut and resembles it strikingly in most of the important characteristics. It occurs in two well known forms. West of the Mississippi River, the Ozark chinkapin tree may reach a height of sixty feet in good soil, while the other form (Allegany chinkapin) in the eastern range grows to a height of about 15 feet. Each may be grafted or budded upon the other without difficulty. Named varieties of the chinkapin are not available at this time. The Japanese, Chinese, and European chestnuts are introduced species.
The blight disease has almost wiped out the great American chestnut forests of the East. As yet, however, the malady has not been introduced into Missouri. (The oak wilt, however, has been found there.—Ed.) The chinkapin of this area is highly resistant to the blight and some of the hybrids carry the resistant quality and bear nuts of good size and high quality. The native chinkapin forests especially of southwest Missouri are valued highly not only for their nuts but particularly for post timber.
The native chinkapin tree in Missouri grows to large size in good soil and it may be found as one of the largest forest trees on the stony ridge lands of southwestern sections of the Ozark Mountains. The nuts are very much like those produced by chestnut trees except they are smaller. In flavor and quality the nuts may be found equal or superior to the chestnuts.
Both the chinkapin and chestnut may be grafted or budded one upon the other. In fact, the western chinkapin may be used successfully as a stock for the chestnut.
The European chestnut is very susceptible to the blight. A very large coarse nut is produced by the Japanese chestnut and it does not blight quite as readily as the American sorts. The Chinese chestnut is the most resistant to blight and it is admired for its beauty as a lawn tree. Promising varieties include Abundance, Nanking and Meiling.
Some desirable varieties of the American and hybrid chestnuts for growing in Missouri are as follows: Boone, Fuller, Paragon, Progress, Rochester, and Champion.
FILBERTS AND HAZELNUTS
The European filbert which is grown so successfully in Oregon and Washington has not been generally successful in Missouri. This has been due mainly to winter injury, resulting either in the killing of the staminate catkins by cold, or of the developing catkins by late spring freezes and frosts. For good fruiting they need cross pollination. Some of the well-known and popular filbert varieties are Barcelona, Du Chilly, Medium Long and Italian Red. Rush, Winkler, and others, are partly or purely American hazelnuts.
The native hazelnut which may be found throughout the State is hardy and generally a fairly regular cropper. Seedling nuts, while not as large usually as the Northwestern filbert, are found now and then that approach them closely in size and cracking quality. Furthermore, the native seedling nut kernels may excel occasionally in flavor and quality.
Interested nut growers are, therefore, urged to perpetuate the most promising hazelnuts of the wild by simple layerage. Until hardier varieties of the filbert are found, the chief attention may be well spent on the propagation and culture of the native seedling sorts of merit. As yet none of the Missouri native seedlings have been described, named and propagated for sale and distribution.