Grape culture in California : its difficulties, phylloxera and resistant vines, other vine diseases ; Improved methods of wine making . Fig. 8. Berlandieri Resseguier No. 1. One half natural size. Solonis X Riparia 1616 (Fig. 11).—This variety is very vigorous,and the cuttings root and graft well. It is sufficiently resistant toPhylloxera, and is to be recommended for sandy and especially wetsoils. Vine fertile, producing small, round, black grapes. Riparia X Rupestris-Cordifolia 1068 (Fig. 12).—This variety isvigorous and thoroughly resistant to Phylloxera. It is particularlyrecommended for s
Grape culture in California : its difficulties, phylloxera and resistant vines, other vine diseases ; Improved methods of wine making . Fig. 8. Berlandieri Resseguier No. 1. One half natural size. Solonis X Riparia 1616 (Fig. 11).—This variety is very vigorous,and the cuttings root and graft well. It is sufficiently resistant toPhylloxera, and is to be recommended for sandy and especially wetsoils. Vine fertile, producing small, round, black grapes. Riparia X Rupestris-Cordifolia 1068 (Fig. 12).—This variety isvigorous and thoroughly resistant to Phylloxera. It is particularlyrecommended for stiff clay soils which become hard after rain andeasily dry out. It is in just such soils that Rupestris St. George and Bulletin 197. GRAPE CULTURE IN CALIFORNIA. 145 Riparia have often failed in California, and this variety thereforepromises to be useful. Vines produce small, round, black grapes. Solonis X Cordifolia-Rupestris 202* (Fig. 12%).—This variety isadapted to soils similar to those suited to 1068, but resists humidity. Fig. 9. Riparia x Berlandieri 15711. One half natural size. better. Prosper Gervais in his report to the Congres Internationalde Viticulture of 1900, at Paris, says: The varieties 2024 and 1068are especially suited to non-calcareous clay soils; the latter succeedin dry. poor, hot soils, providing they are not too shallow; the formerin soils which are both compact and wet. Aramon X Rupestris No. 1 (Fig. 13).—This variety is the result ofa cross between the vinifera variety Aramon and Rupestris —Bul. 197 146 UNIVERSITY OF CALIFORNIA EXPERIMENT STATION.
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