Research On The Breeding Technique And Under-Forest Introduction And Cultivation Of Belamcanda Chinensis

The forest medicine intercropping is a high function compound management mode integrating land resource utilization and cash crop income.Proper intercropping of medicinal materials under the forest before and after the closure of the forest is of great significance to alleviate the adverse situation of single forestry structure,low added value under the forest,shortage of medicinal materials and decline in quality.Belamcanda belamcanda is a genuine medicinal material in Taihang Mountains.It is a dual-use plant with high economic value and ornamental value.It has drought resistance,cold resistance,strong adaptability,strong shade resistance,low management cost,and is suitable for intercropping.In recent years,with the increasing demand for Belamcanda,the price of Belamcanda is also rising year by year,but its wild resources are decreasing day by day,while the artificial planting of Belamcanda is faced with problems such as confusion of germplasm,lack of good varieties,and its output and quality can no longer meet the market demand.In view of this,this study discussed the germination characteristics and breeding techniques of Belamcanda chinensis seeds;The seed sources of Belamcanda belamcanda suitable for under forest cultivation were screened,and the safe,efficient and high-yield cultivation technology system of Belamcanda belamcanda under forest cultivation was explored to provide high-quality Belamcanda resources for the market.The main research results are as follows:1.Wheat seeds were treated with Belamcanda chinensis seed coat extracts of three different solvents.It was found that different extracts significantly delayed the germination of wheat seeds and inhibited the growth of wheat seedlings.Among them,0.04 g/mo L of Belamcanda chinensis seed coat water extract had the most significant effect,delaying wheat seed germination,resulting in 45.50% inhibition of root length and 56.66% inhibition of seedling height of wheat seedlings,as well as significant reduction of chlorophyll content in seedlings,the contents of chlorophyll a and chlorophyll b decreased by 20.90% and 48.00% respectively.2.The germination rate of shoot dried seeds treated by mechanical method increased by 1.71 times;In the heat treatment method,60 ℃ warm water stimulation combined with 48 h seed soaking had the best effect to shorten the seed germination time,reaching 12 days;The time of low temperature stratification was 21 days,and the germination rate was 75.01% higher than CK;In chemical reagent treatment,40%sodium hypochlorite soaking was the best,significantly accelerating the germination rate of seeds;When discussing the rhizome propagation technology,it was found that the best way to use ABT rooting powder was to dip the rhizome in 100 mg/L ABT rooting powder,and the best planting depth was 6 cm.3.Through the analysis of multiple seed quality indexes by subordinate function,it was found that the comprehensive quality ranking of Belamcanda seeds of the seven provenances selected in the experiment was: Anguo,Hebei>Bozhou,Anhui>Shexian,Hebei>Jinzhou,Liaoning>Guangyuan,Sichuan>Jiuquan,Gansu>Ruzhou,Henan.4.Cultivate six different provenances of Belamcanda belamcanda under the canopy density of 0.3～0.9,measure their growth characteristics and effective component content,calculate the comprehensive evaluation of the growth of different provenances of Belamcanda belamcanda under different canopy density through principal component analysis and membership function analysis,and find that the growth of Belamcanda belamcanda under the canopy density of 0.3 is the best,and the growth characteristics and effective component content of Hebei Anguo Belamcanda under the forest are at a high level,It is more suitable to develop understory cultivation than other provenances.This study starts with the dormancy mechanism of Belamcanda chinensis seeds,explores the characteristics of the germination inhibiting substances in the seed coat,and then carries out research on seed treatment methods and rhizome propagation techniques to improve the propagation efficiency of Belamcanda chinensis,and then comprehensively evaluates the seed quality of the seven selected Belamcanda chinensis seed sources,and finally conducts cultivation experiments under forests to screen out the best canopy density and more appropriate Belamcanda chinensis seed sources,providing a theoretical basis for efficient cultivation under Belamcanda chinensis forests.