Chen Yuhang, Yan Xiangwei, Guo Qiaosheng, Tian Hanqing, Deng Qiaohua, Peng Yun, Guo Jianying, Guan Chengzhong
Institute of Chinese Medicinal Materials, Nanjing Agricultural University, Nanjing 210095, China.
Zhongguo Zhong Yao Za Zhi. 2009 Nov;34(21):2709-12.
To study the effects of sowing date on morphologic characteristics, yield and quality of Radix Isatidis, in order to provide a basis for selection of the suitable sowing date.
The experiment was carried out in a randomized complete block design arranged in split plot, the phonological period of Isatis indigotica was investigated and the morphological indexes, yield and quality at harvest were measured and determined by correlation and variance analysis.
The different sowing dates showed a great effect on phonological period of I. indigotica. The biological characteristics, yield and active components of Radix Isatidis were negatively correlated with the sowing date, and the difference of morphological characteristics, yield and active compositions with sowing date was significant.
The suitable sowing date of I. indigotica was during the period of time from late March to beginning of the April in Fuyang area, and considering the factors of rational rotation, the time cloud delayed until late May to the beginning of June.
研究播种期对板蓝根形态特征、产量及品质的影响，为选择适宜播种期提供依据。
试验采用裂区设计的随机完全区组排列，调查菘蓝的物候期，测定收获时的形态指标、产量及品质，并进行相关性和方差分析。
不同播种期对菘蓝物候期影响较大。板蓝根的生物学特性、产量及活性成分与播种期呈负相关，形态特征、产量及活性成分随播种期的变化差异显著。
阜阳地区菘蓝适宜播种期为3月下旬至4月初，考虑合理轮作等因素，可推迟至5月下旬至6月初。
