Effects of Soaking Seeds with Paclobutrazol and Chlorocholine Chloride on the Growth of Quinoa Seedlings
HE Xiao
PANG Chunhua
ZHANG Yongqing
HUA Yanhong
YANG Shifang
WANG Luyuan
Abstract：To regulate excessive growth of quinoa seedlings resulting in stem lodging and improve resistance of seedlings,experiments were carried out with potted sandy cultured seedling of quinoa No.1 to explore the effects of soaking seeds in different concentrations of paclobutrazol (50,100,150,200,300,400 mg/L) and chlorocholine chloride (CCC) (500,1 000,2 000,3 000,5 000,7 000 mg/L) on seedling quality (morphological index,snapping resistance,lodging resistance index,sound seedling index and physiological index).The results showed that,in comparison with soaking seeds in distilled water (control),the height of seedlings decreased by 33.84％,stem diameter increased by 63.04％,the culm bending resistance increased by 94.29％,root vigor increased by 52.86％,chlorophyll content increased by 101.15％,and the content of soluble sugar increased by 27.59％ under 200 mg/L paclobutrazol treatment.And thus,200 mg/L was the optimal concentration of paclobutrazol for soaking seeds to promote seedling growth.Under 3 000 mg/L CCC treatment,the height of seedlings decreased by 17.11％,stem diameter increased by 60.14％,bending resistance of stems increased by 32.86％,root vigor increased by 19.52％,chlorophyll content increased by 49.43％,and the content of soluble sugar increased by 10.34％.So 3 000 mg/L was optimal for soaking seeds with CCC.By comparison,200 mg/L paclobutrazol is most suitable for soaking seeds,which may be helpful to promote the synthesis and accumulation of carbohydrate,and further to cultivate sound seedlings.
Keywords：Chenopodium quinoa WilldPaclobutrazolChlorocholine chlorideSeed soakingSeedling resistance
Publication Date：2018-01-01
Online Publishing Date：2026-09-12(First online date of this platform, not the publication date of the document)
Pages：6( 26-31 )