Effects of Scarification and Substrates on Seed Germination Quality for Domestication of Stereospermum kunthianum(Bignoniaceae)  

作　　者：Beunon Tchimbi Aziber Hamza Ousman Sabre Idriss Absakine Anjah Gâce Mendi BéréNangndi 

机构地区：[1]Department of Plant Biology,Faculty of Sciences,University of Dschang,BP 67,Dschang,Cameroon [2]Department of Life and Earth Sciences,Ecole Normale Supérieure de N'Djamena,BP 460,N’Djamena,Chad [3]Department of Life and Earth Science,Faculty of Science,University of Doba,BP 03,Doba,Chad

出　　处：《Journal of Environmental Science and Engineering(B)》2023年第6期280-288,共9页环境科学与工程（B）

摘　　要：The demand for medicinal plants at the origin of phyto-drugs,like all ethnobotanical plants,threatens their existence today.The aim of this work was to determine suitable methods for optimizing the possibilities of regenerating Stereospermum kunthianum.To achieve this objective,3 levels of mechanical scarification(light scarification,medium scarification and deep scarification)were applied to the seeds of this species using a rough instrument,and 5 days after germination,the seedlings were transplanted into 5 types of substrate to study their effects on seedling growth.The length of the seedlings was measured using a graduated ruler.The results obtained showed that the best latency time was 2 days for average seed scarifications.The highest germination half-time was 4.00±0.06 days observed for average seed scarification,the highest germination speed was 22.50±1.00 and the highest germination rate was 100.00%±0.00%for average scarification.The homogeneous substrate mixes black earth/woodsilk and Fine sand/woodsilk were more effective for seedling growth(1.9 cm/day in the juvenile state)and development.Medium seed scarification is the most effective method for regenerating Stereospermum kunthianum,and the black earth/wood shavings substrate mix is the best for its cultivation.

关 键 词：SCARIFICATION substrate GERMINATION DOMESTICATION Stereospermum kunthianum 

分 类 号：Q94[生物学—植物学]