. Fioristi' review [microformati]. Floricoltura. Mav 10, 1917. I fioristi^ Rassegna 25. Display in Phipps Conservatorio, Schenley Park, Pittsburgh, Pa., il quale offre un suggerimento alla finestra trimmer. Questo è il metodo che viene seguita per risultati sicuri e da raisinfj un nuil- titudo di plantule di qualsiasi croce uno è probabile che prima o poi per fissare il re- sult egli si sforza per l. Qualora uno di questi verde-lasciava in plantule di dimostrare di essere identiche, o ap- prossimalmente così, con le sue bianche a fiore madre, e sono stati i a croce sulla madre varietà, la possibilità del processo di produ- ing prole che sarebbe pu

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. Florists' review [microform]. Floriculture. Mav 10, 1917. The Florists^ Review 25. Display in Phipps Conservatory, Schenley Park, Pittsburgh, Pa., Which Affords a Suggestion to Window Trimmers. this is the method that is followed to secure results, and by raisinfj a nuil- titudo of seedlings of any cross one is likely sooner or later to secure the re- sult he is striving for. Should one of these green-leaved seedlings prove to be identical, or ap- proximately so, with its white-flowered mother, and were I to cross it on the mother variety, the chance of produc- ing offspring that would be pure white and have green leaves would be greater than the chance from raising seedlings from either it or its mother, were they allowed to fertilize themselves. The Third and Fourth Generation. There is one other fact that is not to be overlooked by those who are en- gaged in plant breeding and crossing. A certain per cent of the variations that are obtained by hybridization do not appear in the first generation. Most of the variations appear in the second generation, but a certain proportion, an<l often the most valuable ones, dq not appear until the third generation, while a few come even later than this. I believe that where it is desired to transfer a required characteristic from one variety of plant to another of wide- ly different characteristics, while still retaining the good qualities of the lat- ter variety, it can be done more quickly and more surely by crossing one or both with one or more intermediate varieties, varieties that are triily in- termediate in character, and then cross- ing the resultant progeny, than by mak- ing the direct cross itself. The Price of Success. T have spent no time in this paper discussing the mode of producing hybrids, for I take it for granted that all members of this society arc fully as well acquainted as I with this. Only experience and painstaking observation will teach the operator when to trans- fer the pollen from one flower to

Parole chiave associate all'immagine

• bookcentury1900
• bookdecad
• booksubjectfloriculture
• bookyear1912