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Of Forest Medicine intercropping on the yield and quality of pinellia and physiological and ecological mechanisms

Author: XuLiJun
Tutor: WangWenQuan
School: Beijing University of Traditional Chinese Medicine
Course: Of Pharmacy
Keywords: Pinellia Intercropping Light intensity and quality Physiological and biochemical Yield Quality
CLC: S567.239
Type: PhD thesis
Year: 2011
Downloads: 191
Quote: 0
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Abstract

Forest Medicine intercropping is a set of economic and ecological benefits as one of the efficient cultivation mode of production. In Lin drugs intercropping process, the the tree shading caused by the change of light intensity and quality, as well as medicinal plants and intercropping species between Allelopathy is a key factor in the decision Forest Medicine intercropping success. Pinellia (Pinellia peda-tisecta Schott), also known as tiger palm Southern Star its tubers Qufeng to the frightened, the effect of phlegm. The In this paper pinellia, research material, artificial settings through the use of shade cloth simulation the shade trial, the film set of different colors of light quality test and select the the chestnut forest setting pinellia with chestnut intercropping trials, effects of light intensity, light quality and understory intercropping herbs production of pinellia and medicinal ingredients (medicinal quality indicators) In addition, based on growth traits the pinellia different experimental treatments, photosynthetic characteristics, chlorophyll fluorescence characteristics, cytoprotective enzyme system changes to light intensity, light quality and understory intercropping herbs yield and quality impact Ecophysiological. Allelopathy chestnut with pinellia intercropping as Lin drugs intercropping basic research, a preliminary study. The main findings are as follows: 1. The artificial simulation shade experimental results show that: (1) moderate shade conducive pinellia herbs yield. With light the strong weakening pinellia herbs production rendering in 100% (no shading control), 60%, 40% and 20% of four relative intensity processing low - high - low trend, of which 40% relative The light intensity herbs the highest yield. Under different shading treatments pinellia growth and physiological indexes of measurement results show that moderate shade can increase the number of leaves per plant, increased leaf area. The same time, the shade can improve total chlorophyll content, lower chlorophyll a / b value, increase chlorophyll fluorescence parameters Fv / Fm values. The daily photosynthetic process and the the photoresponse curve measurement results show that 100% relative intensity the under pinellia will occur midday depression phenomenon. 40% relative intensity under pinellia effective radiated the most efficient use of the light within the range of 0-200μmol.m-2.s-1 low light are pinellia shade environment with good adaptability realizable . SOD, POD, CAT enzyme test results show that with the light intensity decreases the activity of the three enzymes showed a 100% relative intensity glare environment and 20% relative intensity is high - low - high trend The low light conditions pinellia generate a certain amount of stress injury. The results pinellia 40% relative light intensity the highest yield ecology mechanism with palm leaves pinellia light intensity conditions leaf area, chlorophyll content, photosynthetic rate is high and is not subject to light Stress several comprehensive factors. ② shade trigonelline, thymine, 6 - oxo-purine, the adenine and pinellia total alkaloids, polysaccharide and soluble protein pinellia content were investigated. October harvest period measurement results show that the total alkaloids of pinellia at 100 percent relative light intensity (shade) under the conditions of the highest content; thymine, 6 - oxygen purine adenine three nitrogen-containing compounds in 60% relative intensity treatment under the highest content; the polysaccharide in pinellia content of 40% relative intensity under the highest; trigonelline and soluble protein content in the highest 20% relative intensity processing. The medicinal herbs different shade conditions pinellia fingerprint analysis results show that: the chemical composition of the different shading conditions pinellia species did not change significantly. The light quality test results show that: white light (natural light), red, blue and green, four-color film processing, white processing herbs the highest yield, the overall white gt; the red gt; Blu gt; Green trend. Growth traits in different color film processing and physiological indicators of measurement results show that the number of leaves with the changes in light quality pinellia trend consistent with herbs yield. Processing comparison with the white, blue, red can increase chlorophyll content, while the green light to reduce the content of chlorophyll and carotene; Photosynthetic diurnal leaf photosynthetic rate pinellia Pn white gt; Blu-ray gt; red gt; green, light response curve measurement results show that the white under pinellia effective radiation in the range of 0-2000μmol.m-2.s-1 solar energy utilization efficiency than other light quality processing. SOD, POD and CAT trend higher in the red - blue - white - green handle - low - high trend, Blu-ray next three highest enzyme activity. Summarize the above results, the white under the highest yield of the crude drugs associated with increased white the pinellia the number of leaves, thus enhancing their photosynthetic capacity related. More importantly, based on the the photosynthetic physiological basis of theory, plants carry out photosynthesis using mainly red and violet light, white light is a composite of light, including plant photosynthetic needs of each light source, green compared to plant photosynthesis can not take advantage of light under the green herbs lowest yield Shizaibiran to. (2) in June-September, the different light quality treatment to of trigonelline, 6 - oxygen purine adenine accumulation of three nitrogen-containing compounds have a significant impact, and to promote the accumulation of these three compounds all showed red For thymine content did not significantly affected. The total alkaloid content of different light quality treatment in 6-7 months showed green gt; white gt; red gt; Blu-ray treatment to the August-October period, but showed the opposite trend. The polysaccharides of pinellia performance in the period from July to October for the trend of high levels of red light treatment; pinellia soluble protein in the September-October period performance for the Blu-ray gt; white gt; red gt; trend of green. HPLC fingerprint analysis showed that different light quality treatment did not affect the types of medicinal ingredients. 3. The intercropping of chestnut with pinellia, test results showed that the: ① T1 (spacing of 3 × 5 m) the processing, pinellia the herbs the highest yield. The analysis showed that the growth and physiological indicators With the decrease of chestnut spacing, shading degree increase, chlorophyll content, content of chlorophyll a and chlorophyll b content roughly increasing trend; the pinellia LSP, LCP, Rd, etc. photosynthetic parameters to reduce the, AQY weakens, Pmax first increased, then reduce. With the decrease of chestnut spacing, shade degree of increase in the trend of SOD, POD and CAT high - low - high trend: pinellia in full light or low light stress by maintaining higher The three enzyme activities, and to alleviate the damage of their active oxygen. (2) T1 intercropping system under trigonelline (except October) and other four highest N-containing compounds. ③ total alkaloids, polysaccharides T1 intercropping system under the highest content of soluble protein content is highest in T2 intercropping system under. Description: suitable intercropping system, the appropriate shade, can contribute to the accumulation of total alkaloids and polysaccharide content, chestnut spacing smaller intercropping system, the better to promote the accumulation of soluble protein content. Different intercropping systems under different the pinellia fingerprint peak area. 4 The allelopathic test results show that: chestnut deciduous aqueous extracts of pinellia germination rate and seedling growth of some sense of his role, the concentration is low, less inhibited the growth of the seed germination rate and seedling from his sense of the role of research results can think the chestnut and pinellia can intercropping. The main innovation of this study point the following aspects: (1) through the light, the herbs several active ingredient pinellia light quality and intercropping treatment accumulated measurement and analysis, found that moderate light intensity processing, light quality and intercropping conditions (2) Determination on the the different treatment pinellia medicinal herbs fingerprinting analysis, treated differently at different times its fingerprinting enough to promote the accumulation of several active ingredients;; (3) system of light intensity, light quality and intercropping treatment processing impact on the photosynthetic physiology pinellia characteristics, the analysis of the relationship between photosynthetic characteristics and yield active ingredient.

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