Nut kernel

“ I believe if you go ahead on the basis of the home consumer and develop a nut that will be desirable for his purpose, and if in addition to these factors that have been discussed it is adaptable and productive, then it is going to be eventually the nut that the commercial man will utilize, because, after all, what we are growing nuts for is the kernel. ”

“ In order to secure the data needed the kernels of the individual nuts in the samples were weighed separately.
NOTE: All samples were cracked with the (John W.) Hershey nut cracker.
Some of the conclusions drawn from these tests were as follows:
1) Using kernel weights only gives a rapid and accurate test of differences between varieties.
2) Ten nuts are adequate for a single sample.
3) The location of the tree with reference to climate and soil is probably the most important single factor influencing kernel yield. ”

“ We split open the nut, but, to our disgust, found the kernel dry and uneatable.
“Hullo,” cried Fritz, “I always thought a cocoa-nut was full of delicious sweet liquid, like almond milk.”
“So it is,” I replied, “when young and fresh, but as it ripens the milk becomes congealed, and in course of time is solidified into a kernel. This kernel then dries as you see here, but when the nut falls on favourable soil, the germ within the kernel swells until it bursts through the shell, and, taking root, springs up a new tree.” ”

“ I realize, of course, that farther south, where hardiness is not so essential a quality, other trees may be just as satisfactory. I might also mention that the size and cracking qualities of the Weschcke variety are also commendable. The quality of the kernel, which is practically 50% of the total weight of the nut, is praised by all who have tasted it. ”

“ Plumpness is another characteristic which we all understand as far as the difference between a nut with a plump well filled kernel is concerned, and one with a shriveled up kernel, but when it comes to arranging the kernels of a lot of nuts in order of their plumpness, the one who tries to do it becomes ready to give up before he really gets started. ”

“ You may wonder if many of our nut growers know nut varieties well enough to detect any but the most obvious sports. Nut improvement through bud selection within the variety lies ahead of us.
Among fruit growers the search seems to have been for fruits of different or more pleasing color. As nut growers we are more likely to be interested in nut sports having better size, kernel, cracking qualities, etc. Trees that are able to ripen their nuts in short or cool seasons are especially desirable in some of our more northern states. ”

“ I have yet to see a tree growing in the Rochester area bearing as large a nut as those grown in the southeast, and all the large nuts I have tasted did not seem to be as sweet as ours. Probably the old saying "the smaller the nut, the sweeter the nut" is true. Of course these are all seedling trees, but by this time we should know whether size of nut and sweetness of kernel are determined by climate or individual trees.
Our largest trees are eleven-year old seedlings of unknown origin. One is, I believe, outstanding. ”

“ Yield and size of nut while of major importance are not the only criteria for appraising the value of a nut variety. In filberts, such points as ease of husking, amount of fibre and, of course, quality must be considered. Also, as in other nuts, thickness of shell and proportions of kernel to shell are quite important. Vigour and hardiness of bush and hardiness of flower, male and female, are assumed, as without these high yields are not to be expected. ”

“ The oval nut is hairy at its tip, and sits in a rough cup made of scales, sometimes fringed at the border. The kernel is sweet and eatable, not only for beasts, but for man. If one were lost in the woods, he need not starve nor die of thirst, if he is near a stream, and can get the fruit of a swamp white oak, which stands by the water side. He will do well to make a fire, and roast the acorns, which will improve their nutty flavour, and make them more digestible. ”

“ MacDaniels: I think that before your committee goes ahead we must get a decision on this point, for the approaches are quite different. If you are developing a schedule for home use, the size of the nuts is of importance. In general, the bigger the nut the easier it is to handle, the easier it is to shuck and crack. The percentage of kernel is relatively less important than it is in the commercial cracking. The size of the particles recovered is more important for home use. If they come out easily and in large pieces, they are much more desirable. ”

“ While the Nut is growing, all the inside is full of this Water, without any Kernel at all; but as the Nut grows towards its Maturity, the Kernel begins to gather and settle round on the [250] inside of the Shell, and is soft like Cream, and as the Nut ripens, it increaseth in substance and becomes hard. The ripe Kernel is sweet enough, but very hard to digest, therefore seldom eaten, unless by Strangers, who know not the effects of it; but while it is young and soft like Pap, some Men will eat it, scraping it out with a Spoon, after they have drunk the Water that was within it. ”

“ In all of our important nuts, such as walnuts, pecans, hickory nuts, almonds, and filberts, the kernel is essentially the embryo with its thickened cotyledons or seed leaves, as the endosperm has been absorbed except for a thin membrane.
At the beginning of its development, growth of the embryo is slow, and in very early stages it is merely a rounded mass of cells. ”

“ The shrub in itself has beauty, and it bears nuts sometimes as large as those of the average shagbark hickory. The kernel is of good quality, but the shell is so thick that these nuts are chiefly attractive to squirrels and to men who are out of work. I do not know the origin of the nut which is known in the market as the Barcelona hazel, but I imagine the plants bearing this nut are derived from the Corylus pontica. (Specimens of branches and nuts of various species and varieties of hazels are now passed about in the audience.) ”

“ It has a thin hull which you can pop off by merely pressing your thumb against it after it is thoroughly dry, coming off very clean leaving a good looking nut. The kernel is very light straw-colored and you can generally get them out in good pieces, about one-quarter of the whole kernel. Above all it matures very early, about the middle of September or sooner, and this is the deciding factor for any nut, because, no matter how well It cracks, how prolific it may be, or hardy, if you do not get a ripe nut you have nothing for here in the north. ”

“ This necessitates weighing the sample after the nuts are cracked which is usually impracticable because of loss of parts of shells in cracking and because additional nuts are not available. Empty or shrivelled nuts in a sample are a serious defect which should count heavily against it. On the basis of experience it seems that a better method is to crack the random sample of 25 nuts and let the empty nuts and shrivelled kernels affect the score as reduced weight per nut, reduced per cent kernel and the penalty as well. ”

“ They take everything at the price of seedling variety. However, you gentlemen who are growing cultivated nuts shouldn't be too disturbed, because of the fact that there is going to be a time in the not-too-distant future where you can dispose of those nuts according to the kernel content within the nut. ”

“ Highest quality of the kernels is directly associated with highest oil content and highest degree of filling. Nut kernels that are poorly filled are often hollow, shrunken, shriveled, and chaffy. When eaten they may taste sweet, but are lacking in the oily flavor characteristic of the particular species of nut eaten. ”

“ The largest nut is in the Fateley #1., with some fruits two inches in diameter, and averaging 23 nuts per pound. The nut is high in quality, has an appealing taste, and a well formed kernel. It cracks easily and has a very thin shell for such a large nut. This tree has borne 50 pounds of [Pg 31] nuts or more annually for the past few years and has a nice crop this year after the severe test winter. The Fateley #1 seedling as well as the #2, #3 and #4 seedlings, are grown on a city lot, under crowded conditions and provided with only moderate care. ”

“ I list the Niblack as first choice because it seems to be about as productive as any of the other varieties, and because of its excellence as a cracking nut and the quality of the kernel. The Niblack is really a very desirable nut for cracking, when it is cracked by such devices as the Squirrel cracker which applies pressure to both ends. The kernel comes free from the shell. In a good many varieties, such as the Indiana and Busseron the kernel and shell do not drop free, but the kernel frequently is wedged in furrows in the shell so that the two must be pulled apart. ”

“ These nuts are relatively small. The cracker doesn't care how small they are, he wants a nut that handles well in the cracker, a nut that is the shape of a football. A miniature football is an ideal cracking type of nut. The cracking docks come together from the ends. We cannot use a round nut. About two-thirds of these good nuts which yielded over 50 per cent kernel were so round that the machinery in cracking would not place the docks on the ends, but they were apt to hit anyplace. So they had to be discounted.
It is quite a job to evaluate these nuts. ”

“ All but one of our most important nuts—almonds, filberts, hickory nuts, pecans, and walnuts—are oily nuts; and well filled kernels contain from 50 to 75 percent or more of oil, depending upon the species. Chestnuts are starchy nuts and contain less than one percent of oil. The relationship between the degree of filling and the composition of the kernel in oily nuts is outstanding, in that the better filled nuts have a higher content of oil and a lower content of protein, carbohydrates, water, and undetermined constituents than do poorly filled nuts. ”

“ The nut has a thick, hard shell, which is deeply and unevenly corrugated with rough, sharp points and ridges, and is almost too well known to admit of description. The kernel is large and sweet, but has usually a rather strong, rank taste, less oily than the butternut. An oil is expressed from its kernel which is known as nut-oil, and is much used by painters as a drying oil. A kind of dye is also manufactured from the husk, or outside cover, of the nut. ”

“ The nut grows under the water after the flowers decay, and is of a triangular shape, and covered with a tough brown integument adhering strongly to the kernel, which is wholly esculent, and of a fine cartilaginous texture. ”

“ The kernel, instead of being all plain and straightforward, as in the acorn or the chestnut, is divided up and frittered away in little troublesome cricks and corners which seem as if they had been invented on purpose to prevent you from getting a single good bite out of the nut in any part whatsoever. Clearly, the hickory-nut is in all these respects the exact antipodes of the choke-cherry: it doesn't want to get eaten if it can by any means possibly help it. ”

“ I am wondering whether it might be possible in some way to get these different factors together and judge the nuts from all angles.
Dr. Deming: That, I think, is absolutely necessary. That is, to combine these two scales of judging, the tree characteristics and those of the nuts. Ultimately we have got to allow a large factor for adaptation and productiveness.
Dr. Zimmerman: A nut may crack well at one time and not so well later on. The moisture of the nuts is a factor.
Dr. Deming: I don't agree with Dr. Smith that we should not use the mechanical cracker. ”

“ As long as we have sufficient experimental research data that at least nineteen elements are invariably essential to all life, it stands to reason, that they at least must also be present in one way or another for the normal, or better the optimum growth of nut trees, and a crop of more nutritious nuts. Therefore, every time one of them is considered, all the others must also be borne in mind. It will neither prove difficult nor costly to experiment with them. It is a matter of finding the proper balance of everything essential for optimum nut tree growing. ”

“ Professor Craig: I think that point is well taken.
President Morris: There is no doubt about that. In that same connection—I would choose nuts for seed purposes of a mean type, for the reason that nature is all the while establishing a mean. The big pecan is a freak. If you plant big or small nuts, you don't get big or small nuts in return. You get both big and little seeking a mean.
Mr. Roper: The large nut will give a better tree. ”

“ President Morris: The tree has been cut so much for scions that it has never had a fair chance. It is a prolific tree. It is well worthy of propagation. [Pg 87]
Mr. Littlepage: It is, perhaps,—judging from looking at it—a very fine shagbark for commercial purposes. Isn't it true that within the next ten years there will, in all probability, be a complete reversion in the mind of the nut culturist as to the kind and quality of the nut he will propagate. I will supplement that by saying that heretofore, both in the pecan and other nut fields, the whole tendency has been toward something big. ”

“ Considerable difference of practice exists in relation to the thickness of the two nuts when a check nut is employed. The first or ordinary nut is screwed home, and the second or check nut is then screwed home. If the second nut is screwed home as firmly as the first, it is obvious that the strain will fall mainly on the second. ”