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南京地区的水杉于1946年初次从原产地引入在南京中山陵园育苗栽植。解放后继续引种在雨花台烈士陵园等处成片造林,现已长成大树,有的已正常结实、种子有胚。 无产阶级文化大革命以来,种植水杉的群众运动迅速开展,引种范围扩及全省,目前已成为平原河网地区主要发展的用材树种之一。因种子来源缺乏,目前主要用扦插法繁殖推广,由于历年多次重复,苗木生长势明显下降,且育苗成本高,影响推广速度。 为了培育壮苗和优良的无性系,开展育种工作,降低育苗成本,促进推广,逐步实现水杉种子生产良种化,1973年和1975年在南京地区进行了选优工作,现简要报告如后,请批评指正。
In 1946, metasequoia in Nanjing was first introduced from the place of origin into the nursery in Zhongshan Cemetery, Nanjing. Continue to introduce after the liberation of Yuhuatai Martyrs Cemetery into pieces of afforestation, has now grown into large trees, and some have been normal and strong, the seeds have embryos. Since the Great Proletarian Cultural Revolution, the mass movement for planting Metasequoia has been carried out rapidly and its coverage has been extended to the whole province. At present, it has become one of the main timber species for development in the plains river network. Due to the lack of seed sources, the current main propagation method with cutting propagation, repeated over the years because of repeated, seedling growth significantly decreased, and the high cost of breeding, affecting the promotion speed. In order to cultivate strong seedlings and excellent clones, to carry out breeding work, reduce seedling costs, promote the promotion and gradually achieve the seed production of Metasequoia glyptostroboides, 1973 and 1975 in Nanjing area conducted a selection of excellent work, now a brief report, such as after Criticism and correction.