In order to study the effects of seed soaking with Paclobutrazol( PP333) on the tillering and physiological characteristics of sugarcane seedlings,sugar cane variety ROC22 was used as experimental material. The effect...In order to study the effects of seed soaking with Paclobutrazol( PP333) on the tillering and physiological characteristics of sugarcane seedlings,sugar cane variety ROC22 was used as experimental material. The effects of seed soaking with different concentrations of PP333 were studied. The tiller number and growth of sugarcane were surveyed at the 6-leaf stage,the physiological indicators such as chlorophyll content,soluble protein content,proline content and peroxidase activity were measured at the 2-leaf,4-leaf,and 6-leaf stages. The results showed that the seed soaking with PP333 can effectively improve the tillering of sugarcane seedlings. The suitable concentration for the tillering of sugarcane and the growth and development of sugarcane was of 50 mg/L; the seed soaking with PP333 significantly increased the chlorophyll,soluble protein,proline,and peroxidase activity of leaves of sugarcane seedlings; the content of chlorophyll and soluble protein in leaves of sugarcane seedlings treated with 90 mg/L PP333 was the highest,and the proline content and peroxidase activity of sugarcane treated with 50 mg/L PP333 were the highest.展开更多
[ Objective] The paper was to explore the effect of seed soaking with paclobutrazol （ PP333 ） on early tillering and endogenous hormone content of sugarcane seedlings. [ Method ] With the sugarcane variety ROC22 as ...[ Objective] The paper was to explore the effect of seed soaking with paclobutrazol （ PP333 ） on early tillering and endogenous hormone content of sugarcane seedlings. [ Method ] With the sugarcane variety ROC22 as the experimental material, seeds were soaked in different concentrations of PP333- The number and growth of tiller were investigated, and the contents of endogenous hormones IAA, CTK, ABA and GA3 at two-leaf, four-loaf and six-leaf stages of sugarcane seedlings were measured, to study the effects of seed soaking with PP333 on early filleting and endogenous hormone contents of sugarcane seedlings. [Result] Seed soaking with PP333 could effectively improve and advance filleting occurrence of sugarcane seedlings. The suitable PP333 concentration for sugarcane fiUeting occurrence, growth and development was 50 mg/L. Seed soaking with PP333 significantly increased the CTK and ABA contents in leaves of sugarcane seedlings, and decreased IAA and GA3 contents. [ Conclusion]The paper will provide a theoretical basis for application of PP333 in sugarcane production.展开更多
基金Supported by Project of National Natural Science Foundation(31501362)Natural Science Foundation Project of Guangxi(2014GXNSFBA118289,2014GXNSFAA118090)
文摘In order to study the effects of seed soaking with Paclobutrazol( PP333) on the tillering and physiological characteristics of sugarcane seedlings,sugar cane variety ROC22 was used as experimental material. The effects of seed soaking with different concentrations of PP333 were studied. The tiller number and growth of sugarcane were surveyed at the 6-leaf stage,the physiological indicators such as chlorophyll content,soluble protein content,proline content and peroxidase activity were measured at the 2-leaf,4-leaf,and 6-leaf stages. The results showed that the seed soaking with PP333 can effectively improve the tillering of sugarcane seedlings. The suitable concentration for the tillering of sugarcane and the growth and development of sugarcane was of 50 mg/L; the seed soaking with PP333 significantly increased the chlorophyll,soluble protein,proline,and peroxidase activity of leaves of sugarcane seedlings; the content of chlorophyll and soluble protein in leaves of sugarcane seedlings treated with 90 mg/L PP333 was the highest,and the proline content and peroxidase activity of sugarcane treated with 50 mg/L PP333 were the highest.
基金Supported by National Natural Science Foundation of China(31501362)Natural Science Foundation of Guangxi Province(2014GXNSFBA118289,2014GXNSFAA118090,2014GXNSFBA118068,2015GXNSFAA139063)Development Fund of Guangxi Academy of Agricultural Science(2015JZ13,2015JZ98,2014YQ01)
文摘[ Objective] The paper was to explore the effect of seed soaking with paclobutrazol （ PP333 ） on early tillering and endogenous hormone content of sugarcane seedlings. [ Method ] With the sugarcane variety ROC22 as the experimental material, seeds were soaked in different concentrations of PP333- The number and growth of tiller were investigated, and the contents of endogenous hormones IAA, CTK, ABA and GA3 at two-leaf, four-loaf and six-leaf stages of sugarcane seedlings were measured, to study the effects of seed soaking with PP333 on early filleting and endogenous hormone contents of sugarcane seedlings. [Result] Seed soaking with PP333 could effectively improve and advance filleting occurrence of sugarcane seedlings. The suitable PP333 concentration for sugarcane fiUeting occurrence, growth and development was 50 mg/L. Seed soaking with PP333 significantly increased the CTK and ABA contents in leaves of sugarcane seedlings, and decreased IAA and GA3 contents. [ Conclusion]The paper will provide a theoretical basis for application of PP333 in sugarcane production.
