The Farmer's Cabinet, and American Herd Book, 3(10): 311-314 (1839)
The following article was published in the New England Farmer, in 1832. It is now revised by the author,
and communicated for publication in the Farmer’s Cabinet.

On the Reciprocal Influence of the Stock and Its Graft*

The opinion that the fruit produced by a graft is not in the least affected by the stock in which the graft is inserted, has long been held as an axiom in vegetable physiology, merely on the authority of Lord Bacon, who lays it down, "that the scion overruleth the stock quite, and that the stock is but passive only, and giveth aliment, but no motion to the graft." In other words, he considers the stock merely as a source of nourishment, to be communicated to the scion in the vessels of which it is to be decomposed or digested, and made to produce fruit in the time natural to the tree whence the scion is taken, and according to its peculiar kind.

I think I shall make it appear, that although as a general rule, the principle is correct which assigns a passive agency to the stock, yet on many occasions it has a decided influence not only on the vigor or fertility of the grafts, but also on the nature and quality of the fruit, and that a scion even affects the production of the stock.

1. The first proof I had on this subject, was given to me by the late JOSEPH COOPER, of New Jersey, an experienced and observing farmer and horticulturist, who in the year 1804, showed me two trees, both ingrafted with the same kind of apple by himself, and at the same time. The stock of one was the Campfield apple, a native and excellent fruit, that of the other was an early apple, and in both instances, the fruit produced by the graft partook of the flavor peculiar to the fruits of the stocks.

*This delicious apple is named "Vandevere," after one of the Swedes, who in the early settlement of the river Delaware, resided near Wilmington, about 27 miles below Philadelphia. It is supposed, therefore, that he brought the original trees from Sweden. The apple is of the middle size, redish, of a pleasant sweet and slightly acid taste, a combination of which renders it the best apple for tarts and pies. They are how. ever, subject to a black spot, which increases with the growth of the fruit, and from its intense bitterness requires to be taken out before the apples are prepared for stewing. The disease is called the "bitter rot."— When first imported, the tree was called "Staalcubs," which may have been its Swedish name.
**[1839.— I have been recently informed by a country friend, that he has cured the bitter rot in his trees, by pruning them when in blossom. The advice was given by a German gardener. How to explain the fact is beyond my philosophy. The experiment ought to be first made by pruning the trees in the winter as usual.— J. M.]

Mr. Cooper afterwards communicated to me in writing, his remarks on this subject, as follows: "I have in numerous instances seen the stock have great influence on the fruit grafted thereon, in respect to bearing, size, and flavor, and also on the longevity of the tree, particularly in the instance of a number of Vandevere* apple trees, the fruit of which was so subject to the bitter rot, as to be of little use. They were ingrafted fifty years ago, previously to 1804, and ever since, those of them which had tops composed of several different kinds, though they continue to be more productive of fruit than any others in my orchard, yet are subject to the bitter rot, the original and well known disease of the fruit of the stock. I have had frequent opportunities of observing the same circumstance, in consequence of my receiving many scions from my friends, which, after bearing, I engrafted, and the fruit uniformly partook in some degree of the qualities of the former, even in their disposition to bear annually or biennially.**

2. A correspondent of Mr. BRADLEY, (Mr. FAIRCHILD) budded a passion-tree, of which the leaves were spotted with yellow, into one that bore long fruit; and though the buds did not take, in the course of two weeks, yellow spots began to show themselves about three feet above the inoculation, and in a short time afterwards, such spots appeared on a shoot which came out of the earth from another part of the plant. The publication of these facts is a proof of the candor of Bradley, inasmuch as they opposed his theory, which was similar to that of Lord Bacon, for he says, "the scion preserves its natural purity and instinct, though it be fed and nourished by a mere crab."

†Hints on Bural Economy, London, 1851.

3. The late celebrated English gardener, WILLIAM SPEECHLY, regarded the stock as overruling the scion, and in confirmation of this opinion says, that "whenever a cutting is taken from an aged tree in a state of decay, and ingrafted upon a thriving stock immediately from seed, it may with propriety be considered as a renovation from decrepit old age, to youth and healthful vigor."† In his treatise on the culture of the vine, he adds, that "he had improved many kinds of vines, by ingrafting those which have generally weak wood on plants that are stronger."

4. THOMAS HITT, another well known English gardener and writer, says, "that the future vigor of trees depends equally upon the soil and stock, and that the tastes of the fruit may also be improved by proper stocks." Hence he gives very particular directions as to the selection of stocks for various fruits, and illustrates the necessity of attention to them, by stating the fact, that "if two nonpareil branches are grafted, the one upon a paradise stock, the other upon a crab, and both planted in the same soil and situation, that upon the crab stock will produce fruit so sour and ill tasted, in comparison to the fruit of the other, that if a person should taste them both in the dark, he could not imagine them to be the same fruit."

*Treatise on Fruit Trees, 3d Edition, p. 46, London. 1768.

"I have also," he says, "seen very great difference between the fruit of these trees, when one was grafted upon a paradise, and the other upon a codlin stock; for though the juices were so far changed by passing through the buds and pores of nonpareil branches, as to produce fruit alike in shape, yet their tastes were different, and somewhat resembled the taste of that fruit which the stocks would have naturally produced. The juices of the crab and codlin are known to be very acid, but the juice of the natural fruit of the paradise is sweet."* He adds, "as most kinds of apricots when fully ripe, are rather too sweet and mealy, so when they are budded upon any kind of plum stocks which have that sort of juice, their fruit becomes more mealy and sweet than those which were budded upon stocks, whose juices were more acid."

†Vol. ii. p. 199.
‡London Horticultural Transactions, vol. ii. p. 20.

5. Mr. THOMAS A. KNIGHT, President of the Horticultural Society of London, in a paper "on the effects of different kinds of grafting"† observes, that "the form and habit which a peach tree of any given variety is disposed to assume, he has found to be very much influenced by the kind of stock upon which it is budded: if upon a plum or apricot stock, its stem will increase in size considerably as its base approaches the stock, and it will emit many lateral shoots: when on the contrary a peach is budded upon the stock of a cultivated variety of its own species, the stock and the budded stem remain very nearly of the same size, as well above as below the point of their junction. No obstacle is presented to the ascent or descent of the sap, which appears to ascend more abundantly to the summit of the tree." He also gives the following striking fact to demonstrate the influence of the stock upon the graft inserted in it. The "Moor Park Apricot tree in his garden, as in many others, becomes in a few years diseased and debilitated, and generally exhibits in spaces near the head of its stock, lifeless alburnum beneath a rough bark.— Sixteen years ago a single plant of this variety was obtained by grafting upon an apricot stock, and the bark of this tree still retains a smooth and polished surface, and the whole tree presents a degree of health and vigor so different from any other tree of the same kind in his garden, that he has found it difficult to convince gardeners who have seen it, of its specific identity."‡

*London Horticultural Transactions, vol. vii. p. 213.

6. Mr. THOMAS TORERON, gardener to the Countess of Bridge water, says, that "choice sorts of pears by being grafted upon the quince, come several years sooner into bearing, and produce much better crops, than those upon the common, or free stock. He adds that the fruit will be in no respect inferior, and that he has had opportunities of seeing the superiority of the quince stock in three different counties in England."*

7. Among the extracts given by Sir JOSEPH BANKS, from French authors, in the appendix to the 1st volume of the Transactions of the London Horticultural Society, it is stated that "the Crassane pear may be improved, and all its harshness destroyed by grafting upon the Doyenne: and that the Reine Claude plum is much improved, by being grafted upon an apricot or peach stock."

†On Gardening, vol. ii. p. 135.

8. BRADLEY says, that "since the Jordan almond had been grafted on plum stocks in England, they bore very well, whereas, in the time of Ray, they seldom produced ripe fruit. Canary almonds, grafted on the plum, succeed well; while the seedlings of the same species, of five or six years' growth, appear all nipped and shrivelled."†

9. The "Spitzenburg apple," which originated near Albany, in the State of New York, is one of the finest apples of the United States. When I was in New York a few years since, I was informed, that the flavor of this apple is much influenced by the apple stock upon which it is grafted.

10. I have in some British publication read the fact, that a shaddock ingrafted on a sweet orange stock, will become sweet, and that the orange grafted upon the pomegranate at Malta, gave fruit which was red inside. I regret that I am not able to give my authorities for these two last facts. I find them in my common-place book, and would not have put them there, had I not been well persuaded in my mind at the time, of the high credit due to the source whence I obtained them.

11. Dr. DARWIN says, "it is not certainly known whether the ingrafted scion gives, or takes any property to, or from the tree (stock) which receives it, except that it acquires nourishment from it." He afterwards says, "there are no instances recorded, where a communication of juices from the graft to the stock, or from the stock to the graft, has varied the flavor, or the form of the flowers, or fruits of either of them. For though the same vegetable blood passes along both the upper and lower part of the caudex of the new scion, yet the molecules secreted from this blood are selected or formed by the different glands of the part of the caudex which was brought with the ingrafted scion, and of the part of it which remained on the stock, in the same manner as different kinds of secretions are produced from the same blood in animal bodies." This remark is made in Sect. xvi. 4, "Of the Phytologia, or Philosophy of Agriculture and Gardening," nevertheless, in Sect. v. 2, of the same valuable work, when treating of the circulation of the juices of plants, and after quoting the experiments of Fairchild and Lawrence, Dr. D. says, "I think I have myself observed in two pear trees about twenty years old, whose branches were much injured by canker, that by ingrafting hardier pear scions on their summits, they became healthier trees, which can only be explained from a better sanguification produced in the leaves of the new buds. It has also been observed by an ingenious lady, that though fruit trees ingrafted on various kinds of stocks are supposed to bear similar fruits, yet that this is not accurately so; as on some stocks she has known the ingrafted scions of apple trees to suffer considerable change for the worse, compared with the fruit of the parent tree." This fact which I deem highly important, and worthy of the greatest attention, is to be coupled with that above related on the authority of the American rural philosopher, Joseph Cooper, and with those in Sect. 5, 8, 9 and 10. Dr. Darwin doubts the influence of the stock on the fruit or flower, or of the graft on the stock, because of the want of "recorded" cases in point, but he had forgotten that he had himself adduced two proofs of such influence, and had referred to two others.

12. In the second volume of the Transactions of the Horticultural Society, London, p. 44, Mr. Luttrel gives an account of several pears which were formerly cultivated; among these is the orange vert, or orange Bergamot. After describing it, he adds, "the true time to eat it, is whilst the color is upon the turn.— The fruit colors most upon quince stocks." This is admitting the principle of the influence of the stock upon the fruit.

13. In the report of the Transactions of the Caledonian Horticultural Society, (May, 1829) Loudon's Mag. 5, p. 334, it is stated, that "the Society were put in possession by Capt. Smith, of Dysart, of an interesting account of the effect of introducing buds of the Ganges apple into branches of the Russian transparent apple, by the ordinary process of inoculation: the Ganges apple produced from these buds having acquired the peculiar transparency which characterizes the fruit of the stock; an effect, it will be observed, that goes to overturn the received opinion, that the produce of the bud is in no respect affected by the qualities of the stock."

*A Guide to the Orchard and Kitchen Garden, London, 1831, reviewed in Loudon's Gardeners' Magazine, vol. vii. p. 581. I cannot permit this opportunity to pass, without bearing my testimony in favor of this admirable miscellany, the circulation of which is immense in England and Europe. No gentleman who has the least taste for horticulture, ought to be without it. Seven volumes have been published.
†The Editor (John Lindley, the botanist) dissents from the opinion of his namesake, the practical gardener, and attributes the "improvement in the flavor of fruits entirely to the increased action of the vital function of the leaves.'' I shall adhere to facts.
See his remarks in the Gardeners' Mag., vol. vii p. 584.

14. Mr. G. LINDLEY mentions* among other plans to cause bad [fruit] bearers to be more prolific, the use of different stocks; and in his commentary on this position, he says, in proportion as the scion and the stock approach each other closely, in constitution, the less effect is produced by the latter; and on the contrary in proportion to the constitutional difference between the stock and the scion is the effect of the former important. Thus, when pears are grafted or budded on the wild species, apples on crabs, plums upon peaches, and peaches upon peaches and almonds, the scion is, in regard to fertility, exactly in the same state as if it had not been grafted at all; while on the other hand, a great increase of fertility is the result of grafting pears upon quinces, peaches upon plums, apples upon white thorn, and the like. In the latter cases, the food absorbed from the earth by the root of the stock is communicated slowly and unwillingly to the scion; under no circumstances is the communication between the one and the other as free and perfect as if their natures had been more nearly the same; the sap is impeded in its ascent, and the proper juices are impeded in their descent; whence arises that accumulation of secretion which is sure to be attended by increased fertility."†

15. I shall close this communication by a letter from Mr. Wm. Prince, of Flushing, Long Island, in confirmation of the principle for which I contend.

Flushing, March 18, 1830.

Dear Sir,—You request that I would inform you, if I have, from my own experience, ascertained whether the stock of a tree has any influence on the graft so as to affect the quality of the fruit? In my father's time, I had often heard this subject discussed, and was led firmly to believe that the stock had no influence or effect whatsoever on the fruit ingrafted on it, but that some sorts of seedlings grew much faster and made stronger growths than others, and of course gave greater vigor to the graft, but the fruit I supposed would be unchanged. You may judge therefore of my surprise, when I was all at once convinced and satisfied that I had been in an error. Having found that the worm which is so destructive to peach trees, would not touch the almond stock, and that the hard shelled almond raised from seed, do not like the original, produce handsome straight stocks, I had a row of young peach trees along the main walk budded to the almond at the surface of the ground, and when grown tall, budded again about five or six feet high to the old Newington clingstone, a fruit of a globular form. Passing by this row of trees two years after, when the fruit was ripe, I stopped to gather some, and to my astonishment, I found the fruit to be of an oval form; knowing I had budded them myself, from a bearing tree of the old Newington, and that the fruit now was oval when they should have been round, it struck me that perhaps the almond stock had caused the alteration; it occurred to me immediately, that there were some peach stocks in the same row where the almond buds had failed, and if there were fruit on them, and they retained their natural form, it would be a convincing proof of the almond stock having altered the form of the fruit. On examining the row, I found several stocks of peaches inoculated the same height as the almonds, with fruit on, which retained their usual round form, when all on the almond stocks were oval, and very much so, that the difference was so plain, you would have thought them a different fruit, but the color and flavor were the same. I went immediately to my brother who lived then at a short distance, and told him of it, but he could not think it possible till he went and saw it himself, and was then satisfied of the fact. I have been thus particular, that you may see I can have no doubt in my mind.

The New England Farmer, April 17th, 1829, in an article signed J. W., and dated at Weston, mentions, respecting the effect of the stock on the graft, that a red apple becomes of a more brilliant red when grafted on a stock that produces red fruit; a green or yellow apple stock diminishes its beauty, and that he had seen scions taken from one tree and set in pale green and in red apple stocks, and that the apples they produced bore no resemblance to each other on these two trees.

The farmers on Long Island, in King's county, have been so well satisfied of the influence of the stock on the graft for some years past, that they procure stocks of the largest green apple to graft with the Newton pippin, so as to have large fair fruit. Life seems too short for experiments that require many years to bring them to perfection, as I observed above thirty years ago to Fisher Ames, who was very curious in fruit. I then stated to him what Mr. Knight is now bringing to perfection, that fruit like pigeons, (as the pigeon fanciers say) might be bred to a feather by mixing the farinae and planting the seed, then repeating the same on the new plant, but the time necessary to carry such experiments into effect was enough to discourage any one from attempting it. I shall however have some experiments tried to ascertain whether the old French method of grafting in and in, will change the form and flavor of fruits, for after what I saw myself as above stated, I am now convinced it will.

I have now to state to you what I have never met with in any author, that the graft has an influence on the stock and root of the tree. The cherry tree when the thermometer in hard winter falls much below zero, is frequently killed by the severity of the frost. I had some years ago, 1821, a number of cherry trees killed, but the weeping cherry, a native of Siberia, although budded some height from the ground, remained uninjured; this led me more minutely to examine their roots, and I found invariably, that the roots of all the weeping cherries differed from the roots of other cherry trees, although the stock was the same; the roots of the trees grafted or budded with the weeping cherry being much fuller of fine spreading fibres, and rooting much stronger. Mentioning this fact to a man who keeps a small apple nursery in this place, and on whose veracity I could depend, he told me that the graft of the Siberian crab apple trees, although grafted two feet from the ground, affected the roots, and caused them to become so wiry and hard, and so full of these fine tough fibrous roots, and that they were very different from the roots of other apple trees.

I have now given you all the information I possess on this subject.

Yours, respectfully,
Wm. Prince