Abstract
In this research it was evaluated the effect of type as well as date of pruning on red raspberry ‘Malling autumn Bliss’ in Guerrero, Chihuahua, Mexico. One-year-old plants were used, spaced 0.5 m between plants, 0.6 m width in hedgerows, and a between rows spacing of 1.5 m. The nutrient supply was done by using 60 ton·ha-1 of dry bovine manure incorporated at 10-15 cm depth. Drip irrigation was used with emitters spaced 1 m. During 2001, pruning at ground level in March 15, April 15, and May 15 were performance, also pruning of the cane portion that fruited the previous year on March 15. During 2002 only pruning at ground level was done on March 15, April 15 and May 15. The results indicated that pruning at ground level in March 15 gave the highest yields in both years with 7.4 and 5.0 ton·ha-1, respectively. Pruning in May 15 delays blooming and harvest date, and fruit size is small. Fruit size ranging from 1.8 to 3.6 g, is obtained with pruning in March 15 and April 15. The highest number of new canes was obtained with pruning on April 15.
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