Abstract
In the North of Minas Gerais it is cultivated basically 'Prata-Anã' banana, a cultivar that requires mainly Zn. The possibility of zinc supply, without this nutrient getting in contact with the soil, it is important for the region, since several factors take to the low availability of the element supplied by the soil, as: elevated organic matter content on the surface (from cultural residues); maintenance of high pH of the soil - above 6,00 - as strategy contrary to the proliferation of the causal agent of the Fusarium Wilt; frequent fertilizations with potassium and magnesium that, besides converting the medium into base, they reduce the participation of Zn in the balance cation/anion of the soil, hindering the absortion of this micronutrient by the plant. For determining the distribution of biomass and minerals in the 'Prata-Anã' banana, cultivated under irrigation in the North of Minas Gerais, when the zinc was supplied through thinned sprout, an experiment was carried out in the Irrigated Perimeter of Jaíba. The plants were fertilized with 0,00; 1,66 and 3,33 g.family-1 of Zn, through thinned sprout. One month after the fertilizations from October 2007 and February 2008, the production of fresh mass (FM) and dry mass (DM) were evaluated, the contents and meanings of minerals in all the bananas family bodies composed by mother-plant with bunch + tall daughter-plant + granddaughter-plant. The doses of Zn did not influence on the production of FM and DM of the plants in the first evaluation, while in the second evaluation positive effect of the treatment was observed just for MF accumulated in the inferior leaves, in the portions of the medium third and inferior of the pseudostem, and in the mother-plant's rhizome. As much the content as the accumulation of nutrients in the mother-plants presented the following decreasing order: K > N > Ca > Mg > P > S > Fe > Zn > B > Cu. The Zn contents were affected by the dose of that micronutrient in the most of the studied situations. The zinc supplied through thinned sprout increased in the mother-plant, and then it was redistributed in the banana's family.
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Claims 7
Claim · model-written summary
Zinc doses did not affect fresh or dry mass in the first evaluation.
- Taxon
- bananat0
- Treatment
- doses of Zne0
- Outcome
- production of FM and DMe0
- Direction
- did not influencee0
- Qualifier
- first evaluatione0
Not reportedComparator
Verbatim
e0“The doses of Zn did not influence on the production of FM and DM of the plants in the first evaluation”
t0“banana”
Claim · model-written summary
Zinc increased fresh mass in lower leaves at the second evaluation.
- Taxon
- bananat0
- Treatment
- treatmente0
- Outcome
- MF accumulated in the inferior leavese0
- Direction
- increaseinferrede0
- Qualifier
- second evaluatione0
Not reportedComparator
Verbatim
e0“in the second evaluation positive effect of the treatment was observed just for MF accumulated in the inferior leaves, in the portions of the medium third and inferior of the pseudostem, and in the mother-plant's rhizome”
t0“banana”
Claim · model-written summary
Zinc increased fresh mass in middle and lower pseudostem portions at second evaluation.
- Taxon
- bananat0
- Treatment
- treatmente0
- Outcome
- portions of the medium third and inferior of the pseudosteme0
- Direction
- increaseinferrede0
- Qualifier
- second evaluatione0
Not reportedComparator
Verbatim
e0“in the second evaluation positive effect of the treatment was observed just for MF accumulated in the inferior leaves, in the portions of the medium third and inferior of the pseudostem, and in the mother-plant's rhizome”
t0“banana”
Claim · model-written summary
Zinc increased fresh mass in mother-plant rhizomes at second evaluation.
- Taxon
- bananat0
- Treatment
- treatmente0
- Outcome
- mother-plant's rhizomee0
- Direction
- increaseinferrede0
- Qualifier
- second evaluatione0
Not reportedComparator
Verbatim
e0“in the second evaluation positive effect of the treatment was observed just for MF accumulated in the inferior leaves, in the portions of the medium third and inferior of the pseudostem, and in the mother-plant's rhizome”
t0“banana”
Claim · model-written summary
Nutrient content and accumulation in mother plants followed K > N > Ca > Mg > P > S > Fe > Zn > B > Cu.
Verbatim
e0“As much the content as the accumulation of nutrients in the mother-plants presented the following decreasing order: K > N > Ca > Mg > P > S > Fe > Zn > B > Cu”
t0“banana”
Claim · model-written summary
Zinc content was affected by dose in most studied situations.
- Taxon
- bananat0
- Treatment
- dose of that micronutriente0
- Outcome
- Zn contentse0
- Qualifier
- most of the studied situationse0
Not reportedDirection
Verbatim
e0“The Zn contents were affected by the dose of that micronutrient in the most of the studied situations”
t0“banana”
Claim · model-written summary
Zinc supplied via a thinned sprout increased zinc in the mother plant before redistribution in the family.
- Taxon
- bananae0
- Organ / stage
- mother-plante0
- Treatment
- zinc supplied through thinned sproute0
- Outcome
- zince0
- Direction
- increasede0
Not reportedComparator
Verbatim
e0“The zinc supplied through thinned sprout increased in the mother-plant, and then it was redistributed in the banana's family”
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Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.