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1.何谓Rigitaeda松Rigitaeda松是硬叶松(Pinus rigida)和火炬松(P.taeda)杂交种的植物学名称。硬叶松自然生长在美国东部,从中部到纽约州也广泛生长。在南卡罗来纳州相当贫瘠的砂地上,也生长发育良好。由于它的耐寒性及抗虫力强,在日本一直到北海道,也能生长发育。火炬松分布地区,以美国东海岸为主;从新泽西州到得克萨斯州、佛罗里达州广为分布。火炬松生长迅速、材质良好,是受到很高评价的树种之一。以硬叶松的耐寒性和火炬松的良好材质为目的的人工杂交种,是1936年在美国加利福尼亚州,弗雷斯诺林木育种场培育出来的。1951
1. What is Rigitaeda pine? The Rigitaeda pine is a botanical name for hybrids of Pinus rigida and P. taeda. Hardwoods naturally grow in the eastern United States, also from the central to New York State also extensive growth. It grows well on pretty poor barren sand in South Carolina. Because of its cold tolerance and insect resistance, in Japan until Hokkaido, but also growth and development. Loblolly pine distribution area, mainly to the east coast of the United States; from New Jersey to Texas, Florida is widely distributed. Exotic growth of loblolly pine, the material is good, is one of the highly evaluated species. Artificial hybrids aimed at the hardiness of hardwood and good material of Pinus taeda were bred from the Fresno Tree Breeding Farm in 1936 in California, USA. 1951