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To study the effect of seedling quality on growth, yield and quality of Rehmannia glutinosa at harvest and build a basis for its GAP. The seedling quality of R. glutinosa in main producing regions was surveyed to understand the current status of seedling quality. Field experiments with different varieties and seedling quality were conducted to measure dry matter accumulation with different growth of R. glutinosa and oligosaccharide content, and economic yield at harvest. The seedling was randomly selected by farmers in R. glutinosa producing regions. Seedling quality could significantly improve on seedling emergence rate, and promote seedling growth, especially with early stage R. glutinosa, finally increase yield at harvest. At harvest, 63% and 50% of yield with A and B seedling could be improved for variety of 85-5, and 50% and 47% of yield could be increased for variety of Beijing No. 1, compared to the C seeding. In cultivation, the seedlings with the diameter > 1.5 cm should be transplanted firstly.

Citation

Lili Zhou, Weizhen Yi, Jianjun Qi, Peng Sun, Shijie Niu, Liankui Jiao, Xian'en Li. Effects of seedling quality on growth of Rehmannia glutinosa and oligosaccharide content]. Zhongguo Zhong yao za zhi = Zhongguo zhongyao zazhi = China journal of Chinese materia medica. 2012 Jul;37(14):2037-40

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PMID: 23126179

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