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At Ramón Manzana S.L., http://www.manzana-nules.com, we believe that work well done can always be improved. As a result, the idea of requesting the collaboration from the IVIA (Valencian Institute of Agricultural Research) emerged to conduct a study on how far we had reached with regard to our continuous search to achieve the best quality for our products and a greater reduction in the damages when harvesting.
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Assessment on the damages caused by the citrus harvesting shears.
Study conducted by:
ivia Instituto Valenciano de
Investigaciones Agrarias
At Ramón Manzana S.L., we believe that work well done can always be improved. As a result, the idea of requesting the collaboration from the IVIA (Valencian Institute of Agricultural Research) emerged to conduct a study on how far we had reached with regard to our continuous search to achieve the best quality for our products and a greater reduction in the damages when harvesting.
To this end, a collaboration agreement was signed with the IVIA to assess the decrease of the alterations caused by cutting in the harvesting using our shears model with round and curved tips and counter-blade relief when compared to other models commonly used by farmers. The study was conducted in the 2013-2014 season at a cooperative in the Region of Valencia evaluating more than 55.000 clementines. This study provided the following results, among others:
DAMAGED FRUIT.The percentage of damaged fruit harvested is evaluated, sorting it according to the degree of such damage, into light, medium and serious.
The graph shows that by using the MANZANA NULES shears, long
stems were reduced by 70,% and very long stems by 60% when
compared to the traditional model.
As shown on the graph, the highest percentage corresponds to light damage. It must be taken into account that the severe damage caused when harvesting is normally detected at the initial sorting tables. However, light and medium damage, which may not be initially detected, is the cause for significant losses of quality during the post-harvesting period, as this fruit is much more susceptible to subsequent pathological and physiological alterations (skin stains and rotten)
This study has enabled us to verify that, with the MANZANA NULES model with rounded and curved tips and counter-blade relief, the damage caused to fruit has been reduced considerably when compared to other traditional shears. This reduction being of 64% in light damage, 29% in medium damage and 50% in severe damage.
SUMMARYIn view of the results obtained by the IVIA, we can state that the technical characteristics of our shears may have a very positive influence in the decrease of damage caused during harvesting, resulting in a significant economic upswing of the harvest.
Some of these characteristics are as follows:
ASSESSMENT ON THE DAMAGES CAUSED BY THE CITRUS HARVESTING SHEARS
0
16
4
20
8
24
32
12
28
36
Manzana-Nules shears
Traditional shears
Manzana-Nules shears
Traditional shears
Fruit with long or very long stems; subject to damage fruit during handling, transport and storage.
Source: IVIA
% of fruit with long or very long stems
Source: IVIA
Source: IVIA
long stems very long stems
% F
ruit
with
ste
m
LIGHT DAMAGE MEDIUM DAMAGE SEVERE DAMAGE
Fuente: IVIA
0
8
2
10
4
12
16
6
14
18
% Fruit with damaged skin
LIGHTDAMAGE
MEDIUM DAMAGE
SEVERE DAMAGE
% d
amag
ed fr
uits
CUTTING OF THE STEMS The amount of fruit harvested with long or very long stems is evaluated, subject to damage fruit during its handling, transport and storage.
1
2
1 2 3
3
Curved tipsRounded tipsCounter-blade relief
Study conducted by:
ivia Instituto Valenciano de
Investigaciones Agrarias
RAMÓN MANZANA, S.L.
C/ Senda Mitjana 41 pta. 11 Apdo 6612520 Nules (Castellón) SPAINT. (+34) 964 671 654F. (+34) 964 787 [email protected]
