140 EXPERIMENT STATION EECOED. 



The influence of pinching fruit-bearing shoots of the vine on the sugar 

 content of the grape, G. Eivikre and G. Bailhache {Prog. Agr. ct Vlt. {Ed. 

 rEst-Ccntre). 30 {1909). No. 18, pp. 5'il, 5^2). — In a previous investigation 

 (E. S. R., 19, p. S44) with the Chasselas Dore grape it was found that the sugar 

 content of the grape decreased approximately in proportion to whether 4, 3, 2, 1 

 or no leaves were left on the shoot beyond the bunches, two bunches being left 

 on each shoot. The work was continued with the same variety to determine 

 whether the sugar content continues to increase when more than 4 leaves are 

 left. The sugar content was found to increase continually from 159 gm. per 

 liter of must where no leaves were left beyond the bunches to 205 gm. where 5 

 leaves were left. No further increase was obtained when 6 or 7 leaves were 

 left. Similar results were found for the acid content which decreased from an 

 amount corresponding to 3.95 gm. sulphuric acid per liter where no leaves were 

 left to 3.65 gm. where 5 leaves wei-e left. As a result of this work it is recom- 

 mended that in pinching back tlie bearing shoots 5 leaves should be left beyond 

 the second bunch. 



The setting of muscat of Alexandria grape, T. Lunt {Gard. Chroh., 3. set:, 

 J/o {1909), No. 1168, pp. 306, 30?).— The author gives brief practical directions 

 based upon his experience for several years rejative to the greenhouse treatment 

 of muscat of Alexandria grapes. The points discussed include ventilation, 

 shading, watering, tliinning, and pollination. 



Viticulture in the coastal region of Argentina, J. F. Baldassarre {BoL 

 Mill. Agr. [Biicuos Aires]. 9 {1908), No. 5-6. pp. 276-33.',, figs. J8).— With the 

 view of stimulating the grape industry in the coastal provinces of Argentina, a 

 detailed account is given of the cultural methods used and varieties grown in a 

 successful grape vineyard of that section. 



Pruning mature fruit trees, O. B. Whipple {Colorado Sta. Bui. 139, pp. 3-20, 

 figs. 15). — This bulletin, which is supplementary to a previous bulletin of the 

 station on pruning fruit trees (B. S. H., 17, p. 864), contains discussions on the 

 physiology'- of pruning, treatment of wounds, and pruning tools, together with 

 suggestions for pruning as applied to the apple, apricot, cherry, peach, pear, 

 plum, and quince. Suggestions are also given for thinning apples, pears, and 

 peaches. 



On the chemical composition of fruits from wall-grow^n trees as compared 

 with that of fruits of the same variety from trees grown on trellises, 

 G. Riviere and G. Bailhache {Jour. Soe. Nat. Hart. Franec, 4. ser., 10 {1909), 

 Apr., pp. 236, 237). — Analyses were made of Calville Blanche apples from trees 

 grown as double vertical cordons on a southern wall, and from trees grown as 

 horizontal cordons on a trellis directed east and west. The fruits gathered 

 from the wall-grown trees contained a considerably larger amount of sugar in 

 the juice than the fruits gathered from the trellis-grown trees. Likewise the 

 acid content of the fruit from the latter trees is greater than that of the fruit 

 from the wall-grown trees. Further experiments are to be conducted to de- 

 termine the requisite amount of heat necessary for the best de^■elopment of the 

 t>ugar content in tliis variety of apple. 



Orcharding (Mass. [Bd.] Agr. Bui. 2, pp. 136, figs. 16). — This is a compilation 

 of the following articles on fruit culture which have previously appeared in 

 different years in Agriculture of Massachusetts: The Relation of Fruit Culture 

 to the Value of New England Farms, and The Soil, Importance of its Character 

 for the Culture of Fruit, by G. T. Powell ; Fruits for Local Markets, by J. H. 

 Hale; The Planting of a Commercial Orchard in Massachusetts, and Renovat- 

 ing Old Orchards, by F. C. Sears; Harvesting and Marketing Apples, by F. A. 

 Waugh ; ^Massachusetts Fruit Trees and their Insect Foes, by H. T. Fernald. 



