火炬松、湿地松和马尾松扦插育苗技术

通过不同穗条长度、寄插时间和移栽时间对火炬松、湿地松和马尾松扦插苗成活率、高度和地径的影响研究 .结果表明 :不同树种由于其生物学特性不同 ,适宜的穗条长度、寄插时间和移栽时间表现不一致 .火炬松适宜的寄扦时间和移栽时间分别为 1 2月 30日和 4月 1 0日 ,穗条长度以 4～ 8cm为宜 ;湿地松适宜的寄扦时间为 1月 1 5日 ,移栽时间以 4月 1 0日为宜 ,穗条长度以 1 2 cm为宜 ;马尾松适宜的寄扦时间为 1 2月 1 5日至 1 2月 30日 ,移栽时间以 3月 2 0日为宜 ,穗条长度以 6～ 8cm为宜 .

The Preliminary Studies on Culture Techniques of Cutting Seedlings of Pinus taeda,Pinus elliottii and Pinus massoniana

In this paper,the effect of cutting length,temporal planting time and transplanting time on survival rate, height and basal diameter of Pinus taeda,Pinus elliottii and Pinus massoniana cutting seedlings has been studied The results showed that because of difference of biological properties among three tree species, suitable cutting length,temporal planting time and transplanting time are different The suitable temporal planting time and transplanting time of Pinus taeda is December 30 and April 10,the best cutting length is 4～8 cm; the suitable temporal planting time and transplanting time of Pinus elliottii is January 15 and April 10,the best cutting length is 12 cm; the suitable temporal planting time and transplanting time of Pinus massoniana is December 15～30 and April 10,the best cutting length is 6～8 cm