文献类型：期刊文献

中文题名：播种期对当归种苗生理指标及质量的影响

英文题名：Effects of sowing date on physiological indexes and quality of Angelica sinensis seedlings

作者：葛慧[1];赵鑫[1];王盼[1];郭增祥[2];赵万千[3];杨荣洲[4];陈红刚[1,5];曾翠云[1,5];杜弢[1,5]

第一作者：葛慧

机构：[1]甘肃中医药大学和政药用植物园,甘肃和政731200;[2]岷县当归研究院,甘肃岷县748400;[3]甘肃省临夏州农业科学院,甘肃临夏731100;[4]定西市农业科学研究院,甘肃定西743000;[5]甘肃中医药大学西北中藏药协同创新中心,甘肃兰州730000

第一机构：甘肃中医药大学

年份：2022

卷号：42

期号：6

起止页码：56

中文期刊名：草原与草坪

外文期刊名：Grassland and Turf

收录：CSTPCD;;CSCD:【CSCD_E2021_2022】；

基金：国家中药材产业技术体系建设专项资金(CAR S-21);甘肃省科技创新基地和人才计划项目资助(18JR2TA017);甘肃中医药大学脱贫攻坚扶贫科技专项(2019PFZX-6);甘肃省高校中(藏)药化学与质量研究省级重点实验室开放课题(zzy-2019-022);甘肃省中医药研究中心开放课题(zyzx-2020-30);甘肃省药品科研项目(2020GSMPA031)。

语种：中文

中文关键词：播种期;气候因子;质量;生理指标

外文关键词：sowing date;climatic factors;Angelica sinensis seedlings;physiological indexes;quality

摘要：开展当归不同播种期育苗试验,探究播种期所对应气候因子对当归种苗生理指标及质量的影响,寻找当归育苗的最佳气候条件。试验结果显示,各气候因子与种苗单根重、根粗、产量、一级苗比例、成活率和早期抽薹率之间均存在显著或极显著正相关关系,平均地温、平均气温、≥10℃有效积温及降水量与丙二醛(MDA)含量呈显著负相关关系,与过氧化氢酶(CAT)、过氧化物酶(POD)活性呈显著正相关关系。6月20日(第2播种期)播种的种苗产量分别比6月10日、6月30日播种的种苗产量高11.96%、65.63%,MDA含量分别低2.02%和29.44%,超氧化物歧化酶(SOD)、过氧化物酶(POD)活性较高,药材产量达1 691.2 kg/hm^(2)。综合种苗生理指标及产量,6月20日(第2播种期)播种的种苗抗逆性强,早期抽薹率低,药材产量高,可作为适宜播种期,其对应的气象因子可作为适宜气候条件。
Seedling cultivation experiments of Angelica sinensis in different planting dates were carried out to explore the influence of climate factors corresponding to planting date on physiological indexes and quality of Angelica sinensis seedlings,and to find the best climatic conditions for Angelica sinensis seedling cultivation. The experiment results showed that there were significant or extremely significant positive correlations between climate factors and seedling weight per root,root diameter,yield,proportion of primary seedlings,survival rate and early bolting rate. Average ground temperature,average air temperature,effective accumulated temperature ≥10℃ and rainfall were significantly negatively correlated with MDA content,and positively correlated with CAT and POD activities. The seedlings sown on June 20(the second sowing date) had a higher yield of 11. 96% and 65. 63% than those sown on June 10 and June 30,respectively,while the content of MDA was 2. 02% and 29. 44% lower,and the activities of superoxide dismutase(SOD) and peroxidase(POD) were higher. The output of medicinal materials reached 1 691. 2 kg/hm^(2). Based on the physiological indicators and yield of seedlings,the seedlings sown on June 20(the second sowing date) had strong resistance to stress,low early bolting rate and high yield of medicinal materials,which could be used as the appropriate sowing period. And the corresponding climate factors could be used as the appropriate climate conditions.