摘要
对核桃种子的采集时间、调制方法、浸种和催芽技术等几个方面进行了系统研究，并进行了种子生理学的测定，其目的是探明核桃种子的烂种原因和发芽条件。结果表明，采种过早和堆沤过久都会引起种子霉烂，而种子吸水不足则是导致沙藏烂种和播种烂种的主要原因。同时也查明，种壳的机械约束是种子发芽慢的主要原因，较高的环境温度和充足的种子含水量是核桃种子发芽的适宜条件。采取适当晚采，合理调制和沙藏前适当浸种，播种前晒裂种壳，播种后提高地温等措施，可以减少烂种，加快出苗速度，提高出苗率。
In this paper, collection time,processing method,techniques soaking and hastening germination of walnut seed were studied. Physiological analyses of seed were made to verify the causes of walnut seed rotting and its germination conditions.The result shows that early collection and long time piling of seeds with green skin always cause seed rotting, but insufficient water absorbed by sceds is the main reason for seed rotting during stratification or after seeding.It has been established that mechanical restrain of the walnut shell is the principal cause making seeds germinating slowly, and that high environmental temperature and sufficient water content in seed are suitable conditions for germination of walnut seeds. Such measures as late collection,rational processing,soaking in water before stratification,sunning the seeds to shell crack before sowing,raising the soil temperature after seeding, can be taken to decrease seed rotting,accelerate the speed of seed germination and increase the rate of seedlings emergence.
出处
《林业科学》
CAS
CSCD
北大核心
1994年第1期18-24,共7页
Scientia Silvae Sinicae
关键词
核桃
种子
发芽
霉烂
Walnut,Seed,Germination,Rotting
