摘要
久树引种到云南干热河谷区能正常生长和开花结实,其植株开花率约30%,19 2%开雄花,10 8%开杂性花;风媒为主;花期主要集中在每年3月中旬至4月上旬;结果率为开花数的39 9%,存果率仅为开花数的6 3%,大量落花落果的主要原因是3—4月的河谷大风和雨季初期的大风降雨;在元江河谷区于7月下旬至8月初可采种,其它地方稍晚。久树种子育苗需对种皮进行处理,机械破壳是目前最简便、经济和有效的方法,育苗地要选择光照和通风好的地方。
Schleichera oleosa is the best host tree species of Kerria lacca. The trees can grow,flower and fruit normally in hot and dry valley area of Yunnan Province.It begins to bud in early March,and most of which blooms from the middle of March to the middle of April.The flower rate is about 30%,in which 192% is male flower and 108% is perfect flower (both staminate flower and monoclinous flower). Anemophilous pollination exists between different flowers. One flower cluster of perfect plant has 41 flowers, 60% of which drops,the rate of fruiting at last is 399% and the last fruit holding rate is 63% of the perfect flower and 382% of the beginning fruit. The shattering rates of flower and fruit are very high mainly for strong wind in March and rainwater in May. The seeds take to mature from the end of July to middle of August at Ynanjiang. The shell of seed should be broken that can makes germination rate high. It is highly important to locate a nursery where is full of light and airing.
出处
《林业科学研究》
CSCD
北大核心
2003年第2期153-158,共6页
Forest Research
基金
国家林业局重点项目"久树良种快速繁育及优质紫胶生产技术研究"(99-16)
云南省"九五"课题"优质紫胶规模生产配套技术试验示范研究"(95A5-7)的部分内容
关键词
紫胶虫
久树
开花结实
育苗技术
lac insect
Schleichera oleosa
bloom and fruit
breeding technique
