Method for screening varieties of energy crops suitable to be planted in heavy metal pollution areas

A screening method, a technique for heavy metals, applied in the fields of botanical equipment and methods, measuring devices, instruments, etc.

Active Publication Date: 2010-06-16
广东华农大城市规划设计院有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Screening of introduced crop varieties in mine p...

Method used

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  • Method for screening varieties of energy crops suitable to be planted in heavy metal pollution areas
  • Method for screening varieties of energy crops suitable to be planted in heavy metal pollution areas

Examples

Experimental program
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Effect test

Embodiment 1

[0035] The screening of embodiment 1 energy sugarcane variety

[0036] 1. In March 2007, Yuetang 83-271, Yuetang 91-600, Yuetang 94-128, Yuetang 94-343, Yuetang 95-128, Yuetang 95-168, Yuetang 95-354, and Yuetang 96 were selected in March 2007. -598, Yuetang 00-236, ROC-22, CP89-2143, CP92-1666, CP94-1340, CP93-1382, CP88-1762 are planted and managed in the mine polluted area and harvested in January of the following year.

[0037] 2. Measure the cane diameter, cane height and sucrose content of all varieties. The yield, total sugar content, heavy metal (zinc, copper, cadmium, lead) absorption capacity and ethanol fermentation performance of sugarcane varieties were determined.

[0038] Table 1 Heavy metal content, total sugar content in yield and ethanol produced by fermentation of different sugarcane varieties

[0039]

[0040]

[0041] In Table 1, the unit of juice is mg / L, and the unit of residue is mg / kg.

[0042] It can be seen from Table 1 that the CP89-2143 vari...

Embodiment 2

[0043] Embodiment 2 screening of energy cassava varieties

[0044] 1. In March 2006, five varieties of Huanan 5, Huanan 6, Huanan 9, Huanan 124 and Huanan 205 were selected for planting and management in the mine polluted area, and they were harvested in November of the same year.

[0045] 2. Measure all varieties to determine the yield, total sugar content, heavy metal (zinc, copper, cadmium, lead) absorption capacity and ethanol fermentation performance of cassava varieties.

[0046] Table 2 Heavy metal content, total sugar content in yield and ethanol produced by fermentation of different cassava varieties

[0047]

[0048] It can be seen from Table 2 that the cassava variety Huanan 205 ranks first in terms of heavy metal absorption capacity, total sugar content, and ethanol production from fermentation. Although it is not as high as Huanan 5, it is the best overall. varieties. Huanan 205, an energy cassava variety that tolerates heavy metals and has good econom...

Embodiment 3

[0049] Example 3 Adaptive planting of the dual-purpose plant Dioscorea chrysanthemi in mines polluted by energy and medicine

[0050] 1. In March 2006, Dioscorea chrysanthemum was planted in the mine polluted area and the non-polluted area with basically the same climate, using the same management method, and harvested in June 2008.

[0051] 2. Determine the yield, total sugar content, heavy metal (zinc, copper, cadmium, lead) absorption capacity and ethanol fermentation performance of Dioscorea chrysanthemum leaf.

[0052] Table 3 Heavy metal content, total sugar content, saponin content and ethanol produced by fermentation of Dioscorea chrysanthemum

[0053]

[0054] It can be seen from Table 3 that the yield, total sugar content, saponin content and ethanol produced by fermentation of Dioscorea chrysanthemum cultivars planted in polluted areas and non-polluted areas are not much different, and they also show good performance in polluted areas. The ability to adso...

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Abstract

The invention discloses a method for screening varieties of energy crops suitable to be planted in heavy metal pollution areas. The method comprises the following steps: (1) planting energy crops in a heavy metal pollution area; (2) measuring the plant height, the plant diameter and the content of sucrose in the crops every 2-3 months; (3) measuring the yield of the screened energy crops; (4) measuring the content of fermentable sugar in the energy crops; (5) measuring the content of heavy metals in the energy crops; (6) fermenting the energy crops, and calculating the sugar conversion rate and the fermentation rate of the energy crops by measuring the content of residual sugar and the content of ethanol; and (7) through the comparative analysis on the data measured in the steps above, screening out the varieties of the energy crops suitable to be planted in the heavy metal pollution area. The method of the invention gives consideration to both the economic value and the environmentalprotection value of the energy crops. The varieties of the energy crops obtained by the method have absorbing capacity for heavy metals and have favorable remediation effect on the environment of theheavy metal pollution area.

Description

technical field [0001] The invention relates to energy crop variety screening technology, in particular to an energy crop variety screening method suitable for planting in heavy metal polluted areas. Background technique [0002] Sugarcane is the C4 crop with the strongest photosynthetic ability and one of the field crops with the highest biomass cultivated by human beings so far. Ethanol yields are significantly better than other crops. Guangdong Province is located in the tropics and subtropics. Its latitude and climate conditions are very similar to those of Brazil. At the same time, Guangdong is also an important sugarcane area in my country. The development of energy sugarcane to produce fuel ethanol has unique natural conditions and a good industrial foundation. The ethanol output of sugarcane is 2.5 times and 3.3 times that of corn and wheat respectively. In terms of cost, the current cost of using sugarcane as raw material in my country is about 3,000 yuan / ton. If ...

Claims

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Application Information

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IPC IPC(8): A01G1/00G01N21/33G01N21/31G01N30/02
Inventor 陈晓阳谢君朱睿陈国涛梁计南徐宁冯蕾罗思施徐晓立朱国辉黄少伟
Owner 广东华农大城市规划设计院有限公司
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