. Plant propagation; greenhouse and nursery practice. ints concerning fruit trer stocks 177 nine trcts mit of a liiimlrcd arc on inalKlcI) slock as tlicrc is lessloss. LlicTiy on niazzard should cost twice as nuicii, hut is worththe price. Mahalel) is sometimes hetter than mazzard in shallowor wet soil. Possil)ly this is the most inportant intluence of stockon cion, for through it many fruits, which would not thrive, insome cases would not live, on their own roots, can he grown inunfavorahle soils. The use of stocks to overcome soil adversitiesdemands much more attention than has heen given. 3
. Plant propagation; greenhouse and nursery practice. ints concerning fruit trer stocks 177 nine trcts mit of a liiimlrcd arc on inalKlcI) slock as tlicrc is lessloss. LlicTiy on niazzard should cost twice as nuicii, hut is worththe price. Mahalel) is sometimes hetter than mazzard in shallowor wet soil. Possil)ly this is the most inportant intluence of stockon cion, for through it many fruits, which would not thrive, insome cases would not live, on their own roots, can he grown inunfavorahle soils. The use of stocks to overcome soil adversitiesdemands much more attention than has heen given. 3. Through the stock, plants may be made to endure incompatibleclimates. It would be too much to say that hardiness as an in-herent c|uality is transmitted from stock to cion, but it is very cer-tain that increase in vigor imparted by some stocks gives greaterhardiness to grafted i)lants. In the case of late-growing applesworked on Hibernal or Oldenberg stocks greater hardiness results,because the cion matures earlier than it would upon its own roots. FIG. 149—HEELING-IN TREES FOR WINTER STORAGE and is therefore better able to withstand the winter. Again, slightobstructions to the sap flow imposed more or less by union of dif-ferent tissues of stock and cion may cause the cion to ripenearlier and thus bring about greater hardiness. Some plants, aspeach, must have a warm soil; therefore, peach does better on plumin cold soils than on its own roots. 4. Stocks, if diseased, may impart the disease to cions, as whenpeach stocks infested with peach yellows or little peach are buddedwith health} buds. 5. Productiveness of tree is often increased by stock, paradoxicallyenough, either by increasing or by decreasing plant vigor. Treessometimes fail to fruit well because of too much wood growth, inwhich case grafting on less vigorous stocks checks growth andmakes for productivity: thus w-e may explain the greater fruit-fulness of some dwarf apples and pears. On the other hand, afruit may
Size: 2632px × 950px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., boo, bookcentury1900, bookdecade1910, booksubjectplantpropagation
