In order to study high yield cultivation technology for Coix Lachryrma-jobi L.,and discuss the effect of planting density,fertilizer level,and number of seedlings per hole on yield of Coix Lachryrma-jobi L.,this paper...In order to study high yield cultivation technology for Coix Lachryrma-jobi L.,and discuss the effect of planting density,fertilizer level,and number of seedlings per hole on yield of Coix Lachryrma-jobi L.,this paper took domesticated variety Xingren Small White Shell of Coix Lachryrma-jobi L. as an example. Using L9( 34) orthogonal design,it selected optimum combination of planting density,fertilizer level,and number of seedlings per hole to guide planting of Coix Lachryrma-jobi L.. Experiment indicated that the optimum planting density( spacing in the rows and spacing between rows) of Coix Lachryrma-jobi L. is 40 cm x 80 cm; the optimum fertilizer level is pure nitrogen 15 kg,pure phosphorus 15 kg and pure potassium 15 kg per mu; the optimum number of seedlings per hole is 5 seedlings per hole. Through variance analysis,it indicated that planting density exerts significance effect on the yield of Coix Lachryrma-jobi L.展开更多
[Objectives] To screen and analyze germplasm resources of wild Coix lacryma-jobi L. with high content of coixin. [Methods] From the 150 kinds of collected wild C. lacryma-jobi L. germplasm resources, 24 kinds of excel...[Objectives] To screen and analyze germplasm resources of wild Coix lacryma-jobi L. with high content of coixin. [Methods] From the 150 kinds of collected wild C. lacryma-jobi L. germplasm resources, 24 kinds of excellent resources were screened and detected. Morphological statistics were carried out, and the content of coixin in the four organ of roots, stems, leaves and seeds were measured, and the approved cultivar white husk Liugu of C. lacryma-jobi L. was taking as the control. [Results] Among the organs of the plant of C. lacryma-jobi L., the roots had the highest content of coixin, so the roots of C. lacryma-jobi L. can be used as the medicinal parts of C. lacryma-jobi L. [Conclusions] The wild C. lacryma-jobi L.Y229, Y164, Y166, Y83, and Y84 stains had excellent yield, and their root coixin content was significantly higher than that of the control variety, so they can be used for cultivation as excellent germplasm, so as to obtain new variety(line) of C. lacryma-jobi L.with higher content of coixin.展开更多
[Objectives] To extract the flavonoids from leaves of Coix lacryma-jobi L. [Methods] Ethanol extraction method was adopted,spectrophotometry was used,and single factor experiment and orthogonal experiment were carried...[Objectives] To extract the flavonoids from leaves of Coix lacryma-jobi L. [Methods] Ethanol extraction method was adopted,spectrophotometry was used,and single factor experiment and orthogonal experiment were carried out to study the effects of ethanol percentage,extraction temperature,solid-to-liquid ratio and extraction time on the extraction of total flavonoids from leaves of C. lacryma-jobi L.[Results] The order of 4 factors influencing the extraction of flavonoids from leaves of C. lacryma-jobi L. was: solid-to-liquid ratio > extraction time > ethanol percentage > extraction temperature. When the extraction temperature was 70℃,the extraction time was 1. 5 h and the solid-liquid ratio was 1: 10,the ethanol percentage was 60%,the extraction effect was the best,extraction of flavonoids was 0. 107 5 mg/m L.[Conclusions] This study is expected to provide a theoretical basis for further development and utilization of C. lacryma-jobi L.展开更多
基金Supported by Key Agricultural Project of Guizhou Province(NY(2011)3093)Guizhou Provincial Science Foundation(J(2013)2192)+1 种基金National Spark Plan Project(2013GA820001)Joint Fund Project of Guizhou Academy of Agricultural Sciences(LH(2014)7692)
文摘In order to study high yield cultivation technology for Coix Lachryrma-jobi L.,and discuss the effect of planting density,fertilizer level,and number of seedlings per hole on yield of Coix Lachryrma-jobi L.,this paper took domesticated variety Xingren Small White Shell of Coix Lachryrma-jobi L. as an example. Using L9( 34) orthogonal design,it selected optimum combination of planting density,fertilizer level,and number of seedlings per hole to guide planting of Coix Lachryrma-jobi L.. Experiment indicated that the optimum planting density( spacing in the rows and spacing between rows) of Coix Lachryrma-jobi L. is 40 cm x 80 cm; the optimum fertilizer level is pure nitrogen 15 kg,pure phosphorus 15 kg and pure potassium 15 kg per mu; the optimum number of seedlings per hole is 5 seedlings per hole. Through variance analysis,it indicated that planting density exerts significance effect on the yield of Coix Lachryrma-jobi L.
基金Supported by Special Project of Guizhou Academy of Agricultural Sciences(Qian Nong Ke Yuan Yuan Zhuan Xiang[2014]010)Science and Technology Research Project for Social Development of Guizhou Province(Qian Ke He SY Zi[2015]3023-4)+1 种基金Special Project of Guizhou Academy of Agricultural Sciences(Qian Nong Ke Yuan Yuan Zhuan Xiang [2014]032)Project of Talent Work Leading Group Office of Guizhou Province(Qian Ren Ling Fa[2016]22)
文摘[Objectives] To screen and analyze germplasm resources of wild Coix lacryma-jobi L. with high content of coixin. [Methods] From the 150 kinds of collected wild C. lacryma-jobi L. germplasm resources, 24 kinds of excellent resources were screened and detected. Morphological statistics were carried out, and the content of coixin in the four organ of roots, stems, leaves and seeds were measured, and the approved cultivar white husk Liugu of C. lacryma-jobi L. was taking as the control. [Results] Among the organs of the plant of C. lacryma-jobi L., the roots had the highest content of coixin, so the roots of C. lacryma-jobi L. can be used as the medicinal parts of C. lacryma-jobi L. [Conclusions] The wild C. lacryma-jobi L.Y229, Y164, Y166, Y83, and Y84 stains had excellent yield, and their root coixin content was significantly higher than that of the control variety, so they can be used for cultivation as excellent germplasm, so as to obtain new variety(line) of C. lacryma-jobi L.with higher content of coixin.
基金Supported by Project of National Natural Science Foundation(81360684)Natural Science Foundation Project of Guangxi(2011GXNSFA018046)+3 种基金the 12th Five-Year TCM Key Discipline Chinese Medicine Chemistry Construction Program of State Administration of Traditional Chinese Medicine(Guo Zhong Yi Yao Ren Jiao Fa[2012]32)Key Discipline Chinese Medicine Chemistry Construction Program of Guangxi(Gui Jiao Ke Yan[2013]16)Program of Key Laboratory of Guangxi Universities on National Medicine in Youjiang River Basin(Gui Jiao Ke Yan[2014]14)Student’s Platform for Innovation and Entrepreneurship Training Program of Guangxi in 2015(201510599026)
文摘[Objectives] To extract the flavonoids from leaves of Coix lacryma-jobi L. [Methods] Ethanol extraction method was adopted,spectrophotometry was used,and single factor experiment and orthogonal experiment were carried out to study the effects of ethanol percentage,extraction temperature,solid-to-liquid ratio and extraction time on the extraction of total flavonoids from leaves of C. lacryma-jobi L.[Results] The order of 4 factors influencing the extraction of flavonoids from leaves of C. lacryma-jobi L. was: solid-to-liquid ratio > extraction time > ethanol percentage > extraction temperature. When the extraction temperature was 70℃,the extraction time was 1. 5 h and the solid-liquid ratio was 1: 10,the ethanol percentage was 60%,the extraction effect was the best,extraction of flavonoids was 0. 107 5 mg/m L.[Conclusions] This study is expected to provide a theoretical basis for further development and utilization of C. lacryma-jobi L.