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发表于 2009-12-25 13:58
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来自: 中国北京
这边讲到Tifblue替芙蓝的授粉树最好是:灿烂,亮蓝和粉蓝。Tifblue has a chilling requirement of 600-700 hours and normally blooms in mid to late March in south Georgia. Approximate date of ripening in south Georgia is late June to August 1. The fruit are medium size with average firmness, color, and picking scar, and good flavor. The first picking of Tifblue can be mechanically harvested for the fresh market during good weather conditions. However, most years the fruit ripens too late to receive high fresh market prices. It also has a very serious problem with fruit cracking during wet weather. No longer recommended for commercial planting if Powderblue can be obtained, due to the fruit cracking problem. Plants make vigorous, upright growth. Cane numbers can be excessive and pruning costs for mechanical harvest are significant. It is common for a few of the bushes to die each year in mature plantings. The cause is unknown but might be stem blight. Suggested pollinizers are[b] Brightwell, Briteblue, and Powderblue Released by Georgia in 1955. |
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