近4年青阳气温对九华黄精生长适宜性研究

Study on the Suitability of Qingyang Temperature for the Growth of Jiuhua Polygonatum cyrtonema in Recent 4 Years

九华黄精为多年生百合科黄精属草本植物,为青阳当地重要的特产之一,栽培上常以4年为1个大周期收获。九华黄精喜温暖,同时也惧高温,适宜的温度对其生长非常重要,低温冷害或高温灼伤都可能对其生长产生胁迫甚至停止生长。结合青阳当地30年的气候特征分析2015—2018年的旬均温数据以及最高、最低气温的日数对九华黄精生长的适应性。总体上2015—2018年均温符合九华黄精的正常生长需求,无较大偏差出现。

Polygonatum cyrtonema Hua is a perennial herbaceous plant which belongs to Ploygonatum of Liliaceae,and it is one of the important local specialties in Qingyang.It is usually harvested for a period of four years.It like warm,but it is also afraid of high temperature.Appropriate temperature is very important for its growth,cold injury or high temperature burn may cause stress or even stop its growth.Based on the climate characteristics of Qingyang for 30 years,the adaptability of the ten day average temperature data of 2015-2018 and the days with the highest and lowest temperature to the growth of Jiuhua Polygonatum cyrtonema was analyzed.In general,the average temperature from 2015 to 2018 met the normal growth demand of Jiuhua Polygonatum cyrtonema,and there was no significant deviation.