Immagine di archivio da pagina 27 di frutteti di latifoglie in California inverni. Frutteti di latifoglie in California gli inverni deciduousorchard179chan Anno: 1951 Fig. 15. Phillips si aggrappano peach rami presi in Ontario, 15 giugno 1931. Su tutti ma un ramo terminale bud non è riuscita a crescere; e tutti ma due foglie laterali gemme anche fallito. Alcuni dei fiori insieme frutta, ma la maggior parte non sarebbero stati impollinati poiché sono raggrinzito, pronto a cadere. California, molti dei fiori di entrambi Phillips aggrapparsi e J. H. Hale alberi possono impostare i frutti che rimangono di piccole dimensioni e woody come quelli nella figura 15. Le pere. La maggior parte dei p

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Archive image from page 27 of Deciduous orchards in California winters. Deciduous orchards in California winters deciduousorchard179chan Year: 1951 Fig. 15. Phillips Cling peach branches taken at Ontario, June 15, 1931. On all but one branch the terminal bud failed to grow; and all but two lateral leaf buds also failed. Some of the flowers set fruit, but most apparently were not pollinated since they are shriveled, ready to fall. California, many of the flowers of both Phillips Cling and J. H. Hale trees may set fruits that remain small and woody like those in figure 15. Pears. Most of the pear orchards are in the valleys and foothills of central and northern California, where crops are rarely reduced much by lack of winter chilling. Possibly a DNO or DNC spray in February after an especially warm December and January might, by short- ening the blossoming period, make the calyx spray for codling moth more ef- fective and reduce the danger of fire blight spread. The longer the blossoming period the greater the danger that some part of it will be in weather favorable to the spread of fire blight, but the spray would be followed many times by no clear evidence of benefit. And it might, under some conditions, actually make the blos- soming period longer. Buds on the north side of each tree, partially shaded during the winter, might be the only ones that have had chilling enough to enable them to respond to the spray. Their opening might be hastened and the spray might not influence the buds that start latest, those that have been warrhest during sunny winter days. A considerable number of pear varie- ties have been observed in Berkeley, on a hillside above the winter fogs, where Decembers and Januarys are nearly as warm as those in Riverside, and on low ground where fogs keep the bud tempera- ture considerably lower but not as low as that in most pear-growing districts. On the hillside in Berkeley, the order of blossoming in spring is usually as fol- lows: P. Barry, F

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