【摘要】 1999年冬 ,在广东台山红岭种子园内进行湿×加杂种松嫩枝扦插繁殖试验。采用 5个插前穗条浸渍处理、2个荫棚环境 (各设 3个重复 )进行扦插试验。结果表明 ,在合适条件下 ,湿×加杂种松扦插生根率高 ,平均可达 95 .0 %以上 ,扦插苗根系、抽梢生长良好。荫棚环境、遗传因素对生根率、每株不定根数、抽梢长均有显著的影响 ,微型荫棚与大型荫棚相比 ,所扦插苗木的这 3个指标要分别高出 2 .2个百分点、1.39条、8.6 5cm ,但大型荫棚生根较微型荫棚要快 ;家系间这 3个指标的极差分别为 4 .2个百分点、1.4 1条、4 1.75cm。插前采用 1g·L- 1多菌灵水溶液或 5 0mg·L- 1的ABT 1号生根粉 + 1g·L- 1多菌灵水溶液浸泡穗条 4　 7h可有效地提早生根时间和增加扦插苗的高生长。广东中、南部地区冬、春季荫棚内 ,插后 4 0d穗条已全部愈合 ,插后 5 1　 73d、84　 132d为生根高峰期更多还原

【Abstract】 Trail on softwood cutting propagation of Slash pine×Caribbean pine F1 hybrids were couducted at Taishan Hongling Seed Orchard of Guangdong Province in winter of 1999. In the experiment, five treatments, two shady awning environments and four families were used. Over 95 percent average rooting rate of the hybrids was gained in proper cutting conditions in the experiment, and the growth of rootage and shoots of rooted cutting was very well. The results indicates that the affect of environments and genetic factors is significant on rooting rate, the sum of adventitious roots and the length of shoots of each rooted cutting. the ranges of above three sides are 2.2%, 1.39, 8.65 cm in two shady awning, but the small shady awning has a longer rooting time than the large one, and the ranges are 4.2%,1.41,41.75 cm ,respectively in different families. It is effective to shorten the rooting time and raise height growth of the cuttings rooted, while the cuttings are dipped into 1 g·L -1 carbendazim water solution or 50 mg·L -1 No.1 ABT rooting powder+ 1 g·L -1 carbendazim water solution for 4 7 h. At the middle and south area of Guangdong Province, cuttings are all healed in 40 d after cutting,51 73 d?84 132 d after cutting are the period of higher rooting rate in the shady awning in winter or spring.更多还原