Analysis of endophytic and rhizosphere bacterial diversity and function in the endangered plant Paeonia ludlowii.

Paeonia ludlowii is indigenous to Tibet and has an important ecological and economic value in China. In Tibet, P. ludlowii has been used in folk medicine with relative success.

Effect of remained stem height on yield, quality of I. and on soil water content.

To explore the reason causing low yield, poor quality of , this paper investigated the influence of different remained stem heights on the yield, quality and water consumption of in Gannan plateau area using field single factor randomized block method. Research results showed that which was cut before blooming period in the last ten-day of July with remained stem height of 25 cm had the lowest water consumption, the best underground root traits (including main root length, root diameter, and root dry weight per plant), and the highest yield which was higher that control group by 18.73% (P < .

Effects of different cultivation material formulas on the growth and quality of spp.

To study the effects of different cultivation material formulas on the growth and quality of spp. With the cultivated species strains extracted from wild spp. in Diebu County, Gannan Prefecture as experimental materials, an experiment was designed and the data then obtained was anyalyzed using the single factor variable method.

Comparison of cold resistance physiological and biochemical features of four Herba Rhodiola seedlings under low temperature.

To discuss the cold resistance performance of different Herba Rhodiolae and successfully transplant Herba Rhodiolae to the Gansu plateau area for nursing, domestication and planting, this paper systematically studies six physiological and biochemical features of Rhodiola kirilowii, Rhodiola algida, Rhodiola crenulata and Herba Rhodiolae that are closely associated with cold resistance features and concludes with the cold resistance capability of Rhodiola kirilowii. In the selected six main indexes of the Herba Rhodiolae, the POD, SOD and CAT activity and MDA and Pro content in the leaf are the main physiological and biochemical indexes to indicate the cold resistance performance of four Herba Rhodiolae seedlings and can be regarded as the preliminary indexes to assess the winter performance of Herba Rhodiolae. The research work will provide the theoretical basis for the wild variants of Herba Rhodiolae and GAPJ base construction.