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Method for improving quality of loquat fruit by agricultural measures

A fruit and loquat technology, applied in the agricultural field, can solve the problems of insufficient degradation of fruit malic acid, long treatment time of reflective film, low activity, etc., and achieve the effects of increasing TSS content, reducing malic acid synthesis, and reducing organic acids

Inactive Publication Date: 2011-01-19
FUJIAN AGRI & FORESTRY UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, the total sugar, reducing sugar, soluble solids and vitamin content of loquat trees covered with aluminum foil and aluminum film were higher than those of the control group, but their total acid content was also significantly higher than that of the control group. The reason may be that the treatment time of the reflective film was too long (6 From April 20th to April 30th of the following year), the activity of NADP-ME is still low due to the light factors of the reflective film during the acid-reducing period of fruit physiological maturity, and the fruit malic acid cannot be fully degraded

Method used

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  • Method for improving quality of loquat fruit by agricultural measures

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] 1. Take the high-acid variety 'Jiefang Zhong' as an example. (Jiajiao, Duobao No. 2, Xiangzhong No. 10, Xiaomao Loquat)

[0021] 2. Time for laying reflective film: from the first physiological fruit drop of loquat fruit to the fifth day after the second physiological fruit drop.

[0022] 3. The location of the reflective film: the drip line is covered with reflective film (polyethylene aluminized film).

[0023] 4. Suspended magnetic field time: Judging based on the size of the fruit, the horizontal diameter of the fruit is 2.0-3.0 cm, and the vertical diameter is 3.0-4.0 cm (Fujian, Guangdong and other places can be from March 9th to April 5th).

[0024] 5. Permanent magnet strength: 150 mT, processing time is 20 days.

Embodiment 2

[0026] 1. Take the loquat variety 'Xiangzhong 10' as an example.

[0027] 2. Time for laying reflective film: from the first physiological fruit drop of loquat fruit to the 7th day after the end of the second physiological fruit drop.

[0028] 3. The location of the reflective film: the drip line is covered with reflective film (polyethylene aluminized film).

[0029] 4. Suspended magnetic field time: Judging based on the size of the fruit, the transverse diameter of the fruit is 2.0-3.0 cm, and the longitudinal diameter is 3.0-4.0 cm.

[0030] 5. Permanent magnet strength: 250 mT, processing time is 18 days.

Embodiment 3

[0032] 1. Take the loquat variety 'Duobao 2' as an example.

[0033] 2. Time for laying reflective film: from the first physiological fruit drop of loquat fruit to the 8th day after the second physiological fruit drop.

[0034] 3. The location of the reflective film: the drip line is covered with reflective film (polyethylene aluminized film).

[0035] 4. Suspended magnetic field time: Judging based on the size of the fruit, the transverse diameter of the fruit is 2.0-3.0 cm, and the longitudinal diameter is 3.0-4.0 cm.

[0036] 5. Permanent magnet strength: 350 mT, processing time is 22 days.

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Abstract

The invention provides a method for improving the quality of a loquat fruit by agricultural measures, which combines the reflection film spreading in an orchard and the suspension of magnets. The invention can accurately and effectively adjust and control key enzymes for forming and degrading the main organic acid (malic acid) of the loquat fruit. At the early growth stage of the fruit, the invention improves the activity of phosphoenolpyruvate carboxykinase and NAD-malic dehydrogenase in the pulp; and at the most critical stage for the accumulation of organic acid of the fruit, the invention can promote the activity decline of the PEPC in the pulp, obviously inhibit the activity of the NAD-MDH and enables the activity of NADP-ME in the pulp, reduce the synthesis of malic acid and enhance the degradation of malic acid, thereby obviously reducing the organic acid content of the fruit of the high-acid content loquat, and simultaneously increasing the TSS content of the mature pulp. The invention can obviously reduce the titratable acid (TA) in the fruit and increase the soluble solid (TTS) content of the mature pulp and the weight of a single mature fruit, thereby obviously improving the quality of the mature loquat fruit.

Description

technical field [0001] The invention relates to a method for improving the quality of loquat fruit through agricultural measures, and belongs to the field of agriculture. Background technique [0002] The content and components of fruit organic acids are one of the important factors that determine the quality of fruit flavor, and one of the main problems in my country's loquat industry is that the fruit acidity is too high. Therefore, acid reduction is of great significance to improve the quality of loquat fruit and harvest early. [0003] [Chinese Fruit Trees, 2004 (05) 28-31] Cai Zongqi et al [Chinese Fruit Trees, 2004 (05) 28-31] spread reflective film aluminum foil and aluminum film on the ground of loquat gardens, both of which can promote the growth of loquat, which is conducive to the growth of shoots, thickening and increasing the weight of fresh leaves. At the same time, the laying of reflective film will help to increase the temperature of the soil in winter, prom...

Claims

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Application Information

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IPC IPC(8): A01G17/00A01G7/04A01G7/06
CPCY02P60/14
Inventor 陈发兴吴德宜刘星辉陈立松
Owner FUJIAN AGRI & FORESTRY UNIV
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