摘要
以采自平谷区丫髻山的栓皮栎种子作为试验材料,开展50孔穴盘、36孔穴盘、10 cm×20 cm营养钵3种规格育苗容器的播种试验,从出苗率、育苗成本、育苗周期等指标进行综合分析,得出以36孔穴盘播种育苗最为节约高效;开展了室温、50、60、70、80℃5个水温浸种灭除栗实象甲幼虫试验,结果表明,1.5倍种子体积的60℃热水浸种4 h灭虫效果最佳;开展了胚根长度为0(种脐露白)、1、2、3、4 cm 5个规格的胚根掰除试验,以出苗率为主要评价指标,结合株高、径粗、主根长、主根粗、最长侧根等生长量指标分析,综合评价胚根损伤对栓皮栎播种出苗率及其生长量的影响,结果表明,当胚根长度≤1 cm时胚根出现折损,对栓皮栎的出苗率及生长无明显影响。研究结果解决了在栓皮栎播种育苗过程中,种子采集、灭虫、储存、育苗容器选择等关键技术环节中的实际问题,为栓皮栎播种繁育提供了切实可行的操作经验。
The study used the seeds of Quercus variabilis collected from Yaji Mountain as experimental materials,sowing experiments on three specifications of seedling containers including 50 hole tray,36 hole tray,10 cm×20 cm nutrient bowl were carried out.Based on comprehensive analysis of seedling emergence rate,seedling cost,and seedling cycle,it is concluded that the most economical and efficient method for seedling cultivation is to use a 36 hole tray for sowing;experiments were conducted on the eradication of chestnut weevil larvae by soaking them in five water temperatures,including room temperature 50,60,70 and 80 ℃.The results showed that soaking the seeds in 60 ℃ hot water for 4 hours with 1.5 times the seed volume had the best insecticidal effect;we conducted experiments on the removal of embryonic roots in five sizes:0(with exposed navel),1,2,3 and 4 cm,using seedling emergence rate as the main evaluation indicator,combined with growth indicators such as plant height,diameter diameter,main root length,main root diameter,and longest lateral root.Comprehensive evaluation of the impact of embryonic root damage on the emergence rate and growth of Quercus variabilis was conducted.The results showed that when the embryonic root length was less than or equal to 1 cm,the occurrence of embryonic root damage had no significant impact on the emergence rate and growth of Quercus variabilis.The research results have solved some practical problems existing in key technical processes such as seed collection,pest control,storage,and selection of seedling containers,which can provide practical and feasible operational experience for the sowing and breeding of Quercus variabilis.
作者
王瑛
WANG Ying(Beijing Ming Tombs Forest Farm Management Office,Beijing 102211)
出处
《安徽农业科学》
CAS
2024年第13期78-81,共4页
Journal of Anhui Agricultural Sciences
关键词
栓皮栎
播种
栗实象
Quercus variabilis BL.
Sowing
Chestnut weevil
