摘要
为研究琴叶风吹楠假种皮及种子保存时间对其种子萌发的影响,以琴叶风吹楠成熟种子为材料,经4种不同处理后播种,对其种子出芽率进行观测统计,同时测量幼苗的苗高、地径、主根长、真叶数、叶长及叶宽等6个性状,对不同处理下苗木生长和叶片性状进行比较分析。结果表明:琴叶风吹楠种子出芽时间集中在播种后30~50 d;4种处理下种子出芽率为14.29%~84.67%,各处理间差异明显,出芽率最高的是现采新鲜成熟且留假种皮播种的种子,自然脱落再放置一周后播种的出芽率最低,仅为14.29%。4种处理方式下苗木均生长良好,真叶数和地径生长未出现明显差异,苗高和主根长差异显著。
In order to study the effect of arils and seed preservation time on seed germination of Horsfieldiapandurifolia.Us-ing the mature seeds of H.pandurifolia as materials,the seeds were sown under 4 different treatments.The germination rate was observed and counted,and the seedling height,ground diameter,taproot length,true leaf number,leaf length and leaf width were measured.The seedling growth and leaf traits from different treatments were compared and analyzed.The results showed that the germination time of the seed of H.pandurifoliawas concentrated in 30-50d after sowing.The germi-nation rate ranged from 14.29%to 84.67%,with significant differences among the treatments.The seeds bearing arils which were picked on trees had the highest germination rate.And the lowest germination rate was only 14.29%from the seeds that were sown with natural shedding and placed for a week.Under the four treatments,the seedlings all grew well.There was no significant difference in the number of true leaves and the growth of ground diameter.And the seedling height and taproot length were significantly different.
作者
李小琴
张凤良
吴裕
赵祺
杨湉
毛常丽
LI Xiaoqin;ZHANG Fengliang;WU Yu;ZHAO Qi;YANG Tian;MAO Changli(Yunnan Institute of Tropical Crops,Jinghong 666100,China)
出处
《热带农业科技》
2024年第2期46-49,共4页
Tropical Agricultural Science & Technology
基金
国家自然科学基金课题(31960289)。
关键词
琴叶风吹楠
种子
发芽率
生长量
Horsfieldiapandurifolia
seeds
germination rate
growth
作者简介
李小琴(1987-),女,副研究员,硕士,主要从事林木遗传育种研究。E-mail:512504431@qq.com;通讯作者:吴裕(1972-),男,研究员,硕士,主要从事植物种质资源保护及遗传育种研究。E-mail:hhyyw20030105@126.com。
