摘要
研究黄连高产地植株的生长发育及生物碱含量变化规律,对生长发育性状实测数据进行曲线拟合,构建其生长发育模型,为黄连高产栽培合理促控提供依据。得到黄连植株生长模型:y株高=3. 030 9+0. 732 6x-0. 009 6x2,y叶片数=111. 882 6-2 234. 881 7/x+15 218. 960 8/x2-31 740. 960 8/x3,y叶面积=-217. 136 1+30. 552 2x-0. 359 0x2,y根茎鲜重=-2. 748 8+0. 210 3x+0. 006 4x2,y根茎分枝数=-1. 246 0+0. 192 6x+0. 000 8x2,y须根鲜重=-4. 973 5+0. 589 4x-0. 002 6x2。结果表明:黄连种苗移栽后的叶片数和叶面积不断增加,三年生的黄连叶面积达到最大值425. 83 cm2/株,之后叶面积有减小的趋势,五年生黄连叶片数达最大值70. 91片。黄连株高在整个生育期呈现快速生长-逐渐减低的趋势,植株高度在三年生达到最大值。根茎鲜重、根茎分枝数、须根鲜重随生长发育时间不断增加,整个过程呈S型曲线。一年生黄连根冠比最小,随后逐渐增大,生长中心由茎叶逐渐转移至根茎,三年生黄连的地下部分质量已经超过地上部分,五年生黄连的根冠比值达到最大值1. 91∶1。黄连碱、小檗碱、表小檗碱、盐酸巴马汀这4种生物碱含量随生长年限的增加而逐渐增加。二年生黄连的药根碱含量显著低于其他年生,之后随生长年限的增加无显著变化。非洲防己碱在三年生黄连中得到最高值后逐渐降低。木兰花碱含量随生长年限逐渐增加,在五年生得到最大值,之后逐渐降低。
With Coptis chinensis in high-yielding soil as the object,the growth regularity of plant and dynamic change of alkaloid content was studied. The plant growth model of C. chinensis was constructed. The plant height equation was y = 3. 030 9 + 0. 732 6 x-0. 009 6 x2,the number of leaves equation was y = 111. 882 6-2 234. 881 7/x + 15 218. 960 8/x2-31 740. 960 8/x3,the leaf area equation was y =-217. 136 1 + 30. 552 2 x-0. 359 0 x2,the roots talk biomass equation was y =-2. 748 8 + 0. 210 3 x + 0. 006 4 x2,the number of rootstalk equation was y =-1. 246 0 + 0. 192 6 x + 0. 000 8 x2,the fibrous root biomass equation was y =-4. 973 5 +0. 589 4 x-0. 002 6 x2. The results indicated that the number of leaves and leaf area were increasing continuously after seedling transplanting,the leaf area of 3-year-old C. chinensis reached a maximum value of 425. 83 cm2/plant,after declining. The number of leave of5-year-old C. chinensis reached a maximum value of 70. 91. With the increasing of years of growth,the number of rootstalk and rootstalk biomass of C. chinensis was increasing continuously. The biomass growth of 3-year-old and 4-year-old rootstalk was the fastest in the whole development stage of C. chinensis,the annual increase of more than 300%. The change curve of rootstalk number,rootstalk biomass and fibrous root biomass in the whole growth stage was a s-type. The dry matter partition of leafwas the highest in 1-year-old C. chinensis,and then gradually decreased,the change trend of dry matter partition of rootstalk was just the opposite,the dry matter partition of fibrous root increases with the increase of the growing year,reaching the maximum value in 3-year-old,then gradually lower trend. The root-shootratio of 1-year-old C. chinensis was the smallest,then gradually increases,the growth center gradually shifted to the roots from stems and leaves,The weight of underground part of 3-year-old C. chinensis exceeded the aboveground part,the 5-yearold C. chinensis root-shoot ratio reached the maximum value of 1. 91 ∶ 1.
作者
王钰
李隆云
谭均
陈大霞
宋旭红
WANG Yu;LI Long-yun;TAN Jun;CHEN Da-xia;SONG Xu-hong(Institute of Material Medical Planting,Chongqing Engineering Research Center for Fine Variety Breeding Techniques of Chinese Materia Medica,Chongqing Academy of Chinese Materia Medica,Chongqing Key Laboratory of Chinese Medicine Resources,Chongqing Sub-center of National Resource Center for Chinese Materia Medica,China Academy of Chinese Medical Science,Chongqing 400055,China)
出处
《中国中药杂志》
CAS
CSCD
北大核心
2018年第20期4027-4032,共6页
China Journal of Chinese Materia Medica
基金
国家重点研发计划项目(2017YFC1702601)
国家中医药管理局项目(ZYBZH-CQ-46)
国家中药材产业技术体系项目(CARS-21)
科技基础性工作专项(2015FY111500)
重庆市中药材产业技术体系项目(2017-[5]号)
关键词
黄连
生长模型
生物碱含量
变化规律
Coptis chinensis
growth model
alkaloids
dynamic changes
