Study On Propagation Technology Of Camellia Nitidissima C.W.Chi

Camellia nitidissima C.W.Chi is the national level to protect plants,the highest level of protection of plant varieties in eight countries,has been hailed as " Queen of the tea family " and" Flora panda",and is the development and utilization of extremely characteristic resource plants in the Guangxi Zhuang Autonomous Region.This paper did the researeh on seed breeding technology and asexual reproduetion technology of C.nitidissima.The results showed that:(1)The germination rate of C.nitidissima seed breeding is relatively high.As sown in sand matrix,seeds will be that mining with Potassium-Permanganate liquid soak 15 min for disinfection,germination in the wet sand in about 10 days,select seeds with buds by 5 cm x 8 cm of strains Leading on-demand,the germination rate was highest under these conditions,reached 89.26%.(2)In the C.nitidissima Grafting studies,the seedling stock grafting survival is the highest,reaching 99.63%,the best conditions are:the scion with 800 times Thiophanate-Methyl to soak 2-3 min for disinfection,the stocks with 800 times the mixture(1/2 package Thiophanate-Methyl+2 package Metalaxyl-hymexazol)to soak 5-8 min for disinfection,leaving 1/2 leaf,with cleft grafting methods.(3)The type of plant auxin concentration and treatment time,cutting the amount of substrate and leaf cuttings left on C.nitidissima survival and rooting cuttings have a significant impact,impact on the chlorophyll content was not significant.Using sand as the cuttage substrate,leaving 1/2 leaf cuttings,dealing with the cuttings of the diethyl aminoethyl hexanoate AC 15 times liquid,the cutting seedling survival rate,shoot rate and slightly better rooting:the survival rate was 86.67%,slightly shoot rate was 40.74%,the average root length reached 46.1 mm,and average fresh root weight was 0.513 g.Speed interpolation effect of yellow mud is better with the same concentration of auxin;at the same being treated with different concentrations of auxin,high concentration effect is better than the low concentration effect.(4)The auxin can improve rooting of C.nitidissima layering seedlings.To deal with the root of the diethyl aninoethy1 hexanoate AC 15 times liquid the direct matrix dressing for the best,the survival rate was 100%,rooting rate was 80%.