【摘要】 对遂昌县11年生的杉木双系种子园中的若干无性系,进行了2组共9种化学混合物质的性别分化调控试验,目的是为杉木双系种子园的经营管理提供科学依据。试验I:于1999年6月20日到8月20日进行,采用叶部喷布方式,共喷布3次或6次。其中以处理2(40mg·L-1NAA+200mg·L-1GA3+100mg·L-1H3Bo3)诱导产生雌球花较好,而以处理5(400mg·L-1GA3+100mg·L-1H3BO3)和处理6(3.8g·L-1TDS)诱导产生雄球花比较理想。试验II:在2000年6月20日到7月25日进行,采用茎干注射的方式,共注射5次。不论是在诱导产生雌球花,还是在诱导产生雄球花,均以处理3(5g·L-1GA3+2g·L-1NAA+10g·L-1P+5g·L-1Bo)为好。更多还原

【Abstract】 A series of chemical regulation experiments about sex differentiation were carried out in twin seed orchard of 11yearold Chinese fir. The main objective is to provided scientific guidances for production and management of twin seed orchard.The results of two section experiments are as follows. Experiment I: it was conducted from June 20 to Auguest 20 ,1999. Branches and leaves spraying was used,3 or 6 times. The results showed that: treatment 2 (40 mg·L-1NAA+200 mg·L-1GA3+100 mg·L-1 H3BO3)can induce to produce more female cones. But treatment 5 (400 mg·L-1GA3+100 mg·L-1H3BO3) and treatment 6 (3.8 g·L-1 TDS) can induce to produce more male cones. Experiment II: it was conducted from June 20 to July 25, 2000. Stem injection method was used up to 5 times. Treatment 3 (5 mg·mL-1GA3+2.0 mg·mL-1 NAA+10g·L-1P+5g·L-1Bo) was the best for inducing to produce not only female cones but also male cones.更多还原