Growth and propagation of wild Pinellia ternata in cultivation / 中国中药杂志

<p><b>OBJECTIVE</b>To study the growth and propagation of Pinella ternata in cultivation.</p><p><b>METHOD</b>Forty six populations of P. ternata originated from Sichuan, Shanxi province and chongqing city were collected and cultivated in experimental field under the same cultivation condition.</p><p><b>RESULT AND CONCLUSION</b>Reproduction tubers at the weight of 0.51-2.00 g (diameter 0.9 - 1.5 cm) had higher increments of tubers and general weight. The P. ternata populations originated from Peng-an county, Shehong county, Zhongjiang county, Lezhi county, Lu county grew faster, on the other hand, the populations originated from Lezhi county, Guangyuan county, Peng-an county, Jianyang county had stronger ability of propagation. The sprouting rate of above 0.30 g (diameter 0.7 cm) tubers was about 90%. There was no significant difference in the growth between tubers and bulbils that have the same weight. The two factors that affected the yield increment were weight range and population, and the former was the main one. Significantly positive correlations were found between weight of reproduction tuber and weight of harvested tubers, number of bulbils. However, significantly negative correlations were found between weight of reproduction tuber and weight increments of tubers, increments proportion of tubers and general weight, and a negative correlations was found between weight of reproduction tuber and general weight increments. Curve-estimated models were conjectured about the weight of reproduction tuber and growth or propagation parameters such as the diameter, the sprouting rate, increments of tubers and general weight, increments proportion of tubers and general weight and the number of bulbils. Some proposals to improve the cultivation of P. ternate were suggested.</p>

Progress on research of rapid propagation system of Pinellia ternata / 中国中药杂志

<p><b>OBJECTIVE</b>To improve the rapid propagation system of Pinellia ternata.</p><p><b>METHOD</b>Documentaries at home and abroad were consulted.</p><p><b>RESULT</b>The tissue culture's conditions and research results of P. ternata were summarized.</p><p><b>CONCLUSION</b>Advanced research on the structure of calli and litter tubercle should be made. Traditional rapid propagation system may be improved from the following aspects: the best cooperation of hormones, the most active ex-plant, one time culture and suitable transplant.</p>