CHE REFERENCE LIBRARY - ZetaTalk

372 THE NZ/'RSERY-2C~AN1?,4Ltagc of the full growing season. In the colder sections where thereis &mger of dormant buds being injured, they are often protected1)~ Ix~nllring kvith earth. III spring as soon as the hrli will slip,stocks in which the buds have died are rebudded. For this workbud-sticks of the previous season’s growth are cut, the leaves areremoved, and the sticks packed in sawdust, or sphagnum untilneeded.In spring, the tops of the dormant-budded seedlings are cut offclose 1~~1~ to the inserted buds. In some sections, the tops arch heatledlxwk or lopped and later removed entirely, but as this entails adciitionul~vork it sl~ould be a~oideti if growth is not too vigorous.Sprouts rnwt berenio~ed from the stoc~ks from time to time. ;1boutthy time the buds start to grol.v, a stake is set at ~auh one and totllis the l)ud is tied from time to time, throughoutS the summer, asthey grow. Tl lis stww the ~ioul~le purpose of stying the buds froml~real;ing away from the stocks alit1 of keeping them straight.For propagating oranges under glass, seedlings of grapefruit ororange imq- lw used, although the lwst stock for pot and tub plantsis t’wcirus (or C’ifws) trijllirtfn.Orange trees of alAo& any size may be top-w&cd to othervarieties either by. t)udaling or grafting 1)~ tlw usual methods.Sometimes the tops are cut ofi or loppc‘d, shoots aw then thrownout and in these buds are insertetl. !311cis may !w inserted in largeluranches and after uniting forwl into grob*th 1)). lopping or cuttingback the 1)ranches.Orchids. Orchidaceae.The method of propagatin, cf wchitls must in each species beadapted to tlw hahit and anode of growth. Tlw easiest and safestplan.for the greater number of kincls is by division, hut seeds,cuttmgs,1La;i-ers, of-lkts, and =L-er;b- rarely* roots, are also u t ilizrd.It ib important that artificial means of increase shoultl l)e atloptedonly when the individual plants are in rol)ust health. With manyorchids the struggle of life uiidtbr tile nIlnatural contlitions of (lomt3-tication is nrcessllrily se\we, ant1 my operation which trnnsfornisone weak plant into two or more tvealwr ones is to lw depreratcd.In cases in which thtb only iwthfl available necessitates disturl)anc!eat the roots, consideration must 1~ paid to the constitution of thespecies, for some orchids, even when perfectly healthy, stronglyresent interference. Many of the orchicls are really not propagatedunder cultivation, but are grown front stock rlewly imported from