Polyploid induction and characteristic analysis of Pteroceltis tatarinowii Maxim

Abstract

Pteroceltis Tatarinowii Maxim is a deciduous tree of eulaceae in China. It is a unique fibrous tree species and a national first-grade key protected plant, mainly distributed in 19 provinces such as Anhui, Fujian, Zhejiang, Hubei, etc. It is usually born in the thin forest of limestone mountains by valleys and streams. Pteroceltis Tatarinowii Maxim is a pioneer in afforestation of limestone, sandstone, mountain and riverbank. In addition, Pteroceltis Tatarinowii Maxim sets papermaking, wood, feed, medicinal value in one, especially the unique properties of Pteroceltis Tatarinowii Maxim bast fiber, is an irreplaceable raw material for making rice paper, with important market value. Referring to relevant papers and literatures, it is found that there are few researches on Pteroceltis Tatarinowii Maxim in foreign countries, while there are relatively more researches on Pteroceltis Tatarinowii Maxim in China at present, which are limited to seed breeding, development and utilization, afforestation experiments and other experimental research directions. Many research institutions or enterprises are studying the key technologies and commercial development of forest germplasm innovation, but there are few researches on the germplasm innovation of Pteroceltis Tatarinowii Maxim. There is only one book of Pteroceltis Tatarinowii Maxim China written by Nanjing Forestry University on the market, but there is no research on the breeding of Pteroceltis Tatarinowii Maxim. In this study, Pteroceltis Tatarinowii Maxim seedlings were selected as the research object, and a new variety of Pteroceltis Tatarinowii Maxim was screened by coldnarcissus solution soaking growing point treatment with different concentration and time, and the bark fiber characteristics of new Pteroceltis Tatarinowii Maxim germplasm were analyzed, aiming at filling the blank of Pteroceltis Tatarinowii Maxim breeding in China and cultivating a new variety of Pteroceltis Tatarinowii Maxim with rapid growth, high quality and resistance.