CN101946673A - Method for improving quality of loquat fruit by agricultural measures - Google Patents

Method for improving quality of loquat fruit by agricultural measures Download PDF

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Publication number
CN101946673A
CN101946673A CN2010105056927A CN201010505692A CN101946673A CN 101946673 A CN101946673 A CN 101946673A CN 2010105056927 A CN2010105056927 A CN 2010105056927A CN 201010505692 A CN201010505692 A CN 201010505692A CN 101946673 A CN101946673 A CN 101946673A
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China
Prior art keywords
fruit
loquat
reflective membrane
pulp
acid
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CN2010105056927A
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CN101946673B (en
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陈发兴
吴德宜
刘星辉
陈立松
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Fujian Agriculture and Forestry University
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Fujian Agriculture and Forestry University
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
    • Y02P60/14—Measures for saving energy, e.g. in green houses

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

A kind of method by agricultural measures improvement loquat quality
Technical field
The present invention relates to a kind of method, belong to agriculture field by agricultural measures improvement loquat quality.
Background technology
Fruit organic acid content and component are one of key factors of decision taste of fruit quality, and that one of subject matter that China loquat already exists is exactly fruit acidity is too high.Therefore, falling acid has very important significance to raising loquat quality, gather ahead of time.
Cai Zongqi etc. [Chinese fruit tree, 2004(05) 28-31] all can promote the loquat growth at Loquat Garden ground shop reflective membrane aluminium foil and aluminium film, and it is heavy to help the bright leaf of branch growth, overstriking and raising.Lay reflex film helps improving the soil temperature in winter simultaneously, promotes the photosynthesis of loquat, and the accumulation that has additional nutrients improves fruit quality and promotes premature ripening.Loquat total reducing sugar, reducing sugar, soluble solid and the vitamin content of its middle berth aluminium foil, aluminium film all are higher than contrast, but its total acid content is also apparently higher than control group, its reason may be the reflective membrane processing time to grow (April 30 June 20 to next year) partially, cause falling the acid phase in the fruit physiological ripening, still keep than low activity because of reflective membrane illumination factor causes NADP-ME, the fruit malic acid fails fully to degrade.
Summary of the invention
The invention provides a kind of method, handle, reduced the fruit organic acid content, thereby improved loquat ripening fruits quality in conjunction with hanging magnet and reflective membrane by agricultural measures improvement loquat quality.
The objective of the invention is to be achieved through the following technical solutions:
The present invention adopts the orchard lay reflex film in conjunction with the method that hangs magnet, and concrete steps are as follows:
1) the shop reflective membrane time: 2 physiology sheddings of the 1st physiology shedding to the of loquat finish back 5～10 days;
2) reflective membrane position, shop: drip is with the interior reflective membrane that is paved with;
3) hang the magnetic field time: with the fruit size is basis for estimation, and as fruit transverse diameter 2.0-3.0cm, vertical footpath hangs magnetic field when being 3.0-4.0cm;
4) permanent magnet intensity: 150-450 mT, with alnico magnets by regulate with tree crown apart from obtaining corresponding magnetic field intensity, the processing time is 15-25d.
Wherein said reflective membrane is the polyethylene metallized film.Carry out Routine Management after the processing.
It is that malic acid forms and the key enzyme of degrading that the present invention can regulate and control the main organic acid of loquat accurately and effectively, as phosphoric acid enol pyruvic acid carboxylase (PEPC), NAD-malate dehydrogenase (NAD-MDH) and NADP-malate dehydrogenase (NADP-ME) activity.At fruit development in earlier stage, method of the present invention has improved the activity of pulp phosphoric acid enol pyruvic acid carboxylase (PEPC) and NAD-malate dehydrogenase (NAD-MDH); In the loquat organic acid accumulation most critical stage, can promote the active decline of PEPC in the pulp, significantly suppress the NAD-MDH activity and activated NADP-ME activity in the pulp, make the synthetic minimizing of malic acid, degradation amount increase again, organic acid significantly reduces in the high loquat kind fruit of acid content thereby make, and improves mature sarcocarp TSS content simultaneously again.
Remarkable advantage of the present invention:
The present invention adopts the orchard lay reflex film in conjunction with hanging the magnet method, can significantly reduce fruit titratable acid (TA), improves mature sarcocarp soluble solid (TSS) content and ripening fruits single fruit weight, thereby significantly improves loquat ripening fruits quality.
The shop reflective membrane has remarkable influence with suspension magnet to fruit quality, and is as shown in table 1.Compare with control group (control group refers to and do not spread reflective membrane and hang the magnet processing), shop reflective membrane and the titrable acidity (TA) that hangs the loquat ripening fruits that magnet handles, soluble solid (TSS) content, solid acid than and the single fruit weight average be higher than contrast, and with the significant difference of contrast.
Table 1 is spread reflective membrane and is hung the influence of magnet to loquat ripening fruits titrable acidity (TA), soluble solid (TSS) content, solid acid ratio and single fruit weight
Figure 2010105056927100002DEST_PATH_IMAGE001
Annotate: in the same row alphabetical different persons be significant difference (the Duncan duncan's new multiple range method, P＜0.05).
Embodiment
Embodiment 1
1. be example with peracid kind ' liberation clock '.(pinch, No. 2, many treasured, No. 10, fragrant clock, little Mao loquat)
2. spread the reflective membrane time: 2 physiology sheddings of the 1st physiology shedding to the of loquat finish back the 5th day.
3. spread the reflective membrane position: drip is with the interior reflective membrane (polyethylene metallized film) that is paved with.
4. hang the magnetic field time: with the fruit size is basis for estimation, fruit transverse diameter 2.0-3.0 cm, vertical footpath is that ground such as 3.0-4.0 cm(Fujian, Guangdong can be in 9-April 5 March).
5. permanent magnet intensity: 150 mT, the processing time is 20 d.
Embodiment 2
1. be example with loquat kind ' No. 10, fragrant clock '.
2. spread the reflective membrane time: 2 physiology sheddings of the 1st physiology shedding to the of loquat finish back the 7th day.
3. spread the reflective membrane position: drip is with the interior reflective membrane (polyethylene metallized film) that is paved with.
4. hang the magnetic field time: with the fruit size is basis for estimation, fruit transverse diameter 2.0-3.0 cm, and vertical footpath is 3.0-4.0 cm.
5. permanent magnet intensity: 250 mT, the processing time is 18 d.
Embodiment 3
1. be example with loquat kind ' many precious No. 2 '.
2. spread the reflective membrane time: 2 physiology sheddings of the 1st physiology shedding to the of loquat finish back the 8th day.
3. spread the reflective membrane position: drip is with the interior reflective membrane (polyethylene metallized film) that is paved with.
4. hang the magnetic field time: with the fruit size is basis for estimation, fruit transverse diameter 2.0-3.0 cm, and vertical footpath is 3.0-4.0 cm.
5. permanent magnet intensity: 350 mT, the processing time is 22 d.
Embodiment 4
1. be example with loquat kind ' little Mao loquat '.
2. spread the reflective membrane time: 2 physiology sheddings of the 1st physiology shedding to the of loquat finish back the 10th day.
3. spread the reflective membrane position: drip is with the interior reflective membrane (polyethylene metallized film) that is paved with.
4. hang the magnetic field time: with the fruit size is basis for estimation, fruit transverse diameter 2.0-3.0 cm, and vertical footpath is 3.0-4.0 cm.
5. permanent magnet intensity: 400 mT, the processing time is 25 d.

Claims (3)

1. method by agricultural measures improvement loquat quality, it is characterized in that: described method adopts the orchard lay reflex film to handle in conjunction with hanging magnet.
2. the method by agricultural measures improvement loquat quality according to claim 1, it is characterized in that: described method specifically may further comprise the steps:
1) the shop reflective membrane time: 2 physiology sheddings of the 1st physiology shedding to the of loquat finish back 5～10 days;
2) reflective membrane position, shop: drip is with the interior reflective membrane that is paved with;
3) hang the magnetic field time: with the fruit size is basis for estimation, when the fruit transverse diameter is 2.0-3.0cm, indulges and hangs magnetic field when the footpath is 3.0-4.0cm;
4) permanent magnet intensity: 150-450 mT, with alnico magnets by regulate with tree crown apart from obtaining corresponding magnetic field intensity, the processing time is 15-25d.
3. the method by agricultural measures improvement loquat quality according to claim 1 and 2, it is characterized in that: described reflective membrane is the polyethylene metallized film.
CN2010105056927A 2010-10-13 2010-10-13 Method for improving quality of loquat fruit by agricultural measures Expired - Fee Related CN101946673B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102199620A (en) * 2011-03-10 2011-09-28 昆明理工大学 Carrier for enhancing aluminum-tolerance of plant, and method for establishing the same

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101209020A (en) * 2006-12-26 2008-07-02 姚金荣 Method for planting loquat
CN101720647A (en) * 2009-11-27 2010-06-09 南京农业大学 Cultivation method for increasing sugar content of green loquat fruits

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101209020A (en) * 2006-12-26 2008-07-02 姚金荣 Method for planting loquat
CN101720647A (en) * 2009-11-27 2010-06-09 南京农业大学 Cultivation method for increasing sugar content of green loquat fruits

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
《ⅡInternational Symposium on Loquat》 20061231 F.X.Chen Effects of Magnetic Field and Fertilization on Organic Acids in Loquat Fruit abstract 1、3 , 2 *
《中国南方果树》 20031231 蔡宗启 应用物理方法进行枇杷产期调节研究初报 23-24 1-3 第32卷, 第6期 2 *
《中国果树》 20040930 蔡宗启等 铺反光膜对枇杷枝梢生长和果实品质的影响 第28页第2栏第7行-第29页第1栏第2行,第31页第1栏第7行-第2栏第1行 1、3 , 第5期 2 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102199620A (en) * 2011-03-10 2011-09-28 昆明理工大学 Carrier for enhancing aluminum-tolerance of plant, and method for establishing the same
CN102199620B (en) * 2011-03-10 2015-10-14 昆明理工大学 A kind of carrier and construction process improving Aluminum Tolerance in Plants ability

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