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The Effect of Inoculating of AM Fungi on the Fe Absorption of Raspberry Plants

Author: MengFang
Tutor: ZengMing
School: Southwestern University
Course: Pomology
Keywords: Raspberries Soil Ferrite Arbuscular mycorrhizal fungi
CLC: S663.2
Type: Master's thesis
Year: 2007
Downloads: 143
Quote: 2
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Abstract

Genus (Rubus) of raspberry (Idaeobatus) Rosaceae Rubus (Rosaceae) plants are the small berries economic fruit trees with high economic value, nutritional value and medicinal value in the international market as the \King \The raspberry is a pioneer tree species for afforestation of barren hills and wasteland with good solid soil water retention effect. Thus, the development of appropriate land raspberry cultivation, water and soil conservation, afforestation of barren hills and increase the income of the farmers in mountainous areas, the development of mountain economies, there is a certain sense. The black raspberry originating in the United States and Europe, the warm temperate to subtropical regions, hi neutral or slightly acidic soil, our raspberry cultivation is mainly concentrated in the Northeast, North China, and other areas are yet to scale production. Soil salinization of agricultural production is lethal. The large area of ??saline soil, serious constraints in these areas, especially in the inland areas of economic development, improvement and utilization of saline soil has become an important aspect of ecological restoration and reconstruction work in the implementation of the western development strategy. Over the years, the world improved governance saline land sum up a lot of valuable experience in hydraulic engineering combined with flood irrigation, chemical measures, and fertilize, etc. received very good results, but due to the water resources, both financial and human multifaceted factors and limitations, in recent years, the use of bio-engineering measures for the comprehensive management of increasingly showing its great superiority. Arbuscular mycorrhizal (Arbuscular Mycorrhizal, AM) is the result of the plant in the process of long-term survival, and arbuscular mycorrhizal fungi together evolution, is a beneficial symbiont. Its presence will help improve the ability of plants to withstand adverse environment, and promote plant growth. It is because of these beneficial effects of AM, AM biotechnology and its application in production practice has become a hotspot of current research. On the appropriate black raspberry vaccination arbuscular mycorrhizal fungi and nurtured mycorrhizal seedlings, important to improve the quality of black raspberry seedlings and transplanting survival rate of seedling growth, improve its ability to resist adverse environmental significance. Many studies have found that plant growth under salt stress inoculation AMF. In saline soil, plants and AMF symbiosis can reduce yield losses due to salt damage, improve the salt tolerance of plants, thus contributing to the raspberry saline mineral nutrients, especially iron nutrition absorption. This trial promotion starting from the application of black raspberries, black raspberries to the United States for the test materials, mainly tissue culture conditions for iron in high pH soils ferrite difficult to absorb the phenomenon of the growth area for the black raspberry inoculated AMF processing of their growth and development as well as its physiological and biochemical indexes and different pH value of the soil under field conditions. Data and statistical analysis, to provide a basis for the promotion of black raspberry and salt-tolerant breeding. A large number of previously proved beneficial microorganisms inoculated in the appropriate period of tissue culture tissue culture stage and domestication stage can promote the growth and development of the explants, enhanced the plantlets growth potential and domesticated stage the survival rate of seedlings. The test bottle of AMF and raspberry plantlets rooting for iron processing research under field conditions to take the raspberry under the same management level of annual plants, planted at four different pH (5.45, 6.5,7.5,8.32) of soil, and then were inoculated and non-inoculated with the AMF treatment study. The main results are as follows: 1. Suitable living soil pH range of this study found that black raspberry roughly <7.50's slightly acidic, neutral soil resistance, the highest pH value of the soil should not be more than 7.50, the most suitable raspberries grown soil pH of 6.50, and Xie Zhaosen The study of black raspberry pH over 7.2 poor growth are basically the same. 2. The test in order The annual black raspberry stem segments as explants to establish and perfect raspberry vitro micropropagation system. The results showed that, The black raspberry stem segments callus induction medium MS 1mg/L6-BA 0.5mg / L zeatin induction rate was 90.9%, and the least polluting; optimal differentiation medium was MS 1.0mg / L 6-BA 0.5mg / L zeatin, lateral bud sprouting rate of 86%; to 1/2MS 6-BA0.75ml / L NAA0.125ml / L most conducive to the occurrence and growth of the root system is the best medium for rooting . 3. In vitro state of AMF significantly promote plant growth, especially added Fe ^{3 treatment significantly increased vaccination than not inoculated plant growth, the AMF on trivalent iron medium raspberry plantlet growth has a significant role in promoting. 4. The pilot study confirmed vaccination the AMF can effectively promote the synthesis and accumulation of plant soluble protein; AMF inoculation can effectively improve the free radical scavenging enzymes and proline content, and increase its accumulation in the leaves, and improve its saline-alkali. 5. This test of the AMF on the absorption of mineral nutrition The results show that of AMF conducive to the absorption of mineral nutrition, especially for the trace elements Fe, Cu, Zn absorption of trace elements demonstrated a significant level, but also shows that K Nutrition cumulative no significant effect. 6. Experimental study on the mineral soil inoculated with AMF, results showed that of AMF in high pH soil absorption performance of raspberry roots ferrite promote its root iron reducing significantly improved under different soil pH conditions the development and utilization of great significance.}

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CLC: > Agricultural Sciences > Gardening > Fruit trees gardening > Berries > Rubus (blackberry )
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