Claim 1: a method to Protect or enhance the performance of the bananas,Comprising: (a) contacting a Banana plant before harvesting the Fruit of Banana with a composition comprising an inhibitor of ethylene Synthesis or perception; and (b) to harvest The Fruit of banana after a Predetermined period of time following the step ( A); in a manner that protects and increases the performance of the banana Plant compared to aBanana is not in contact with the composition before Harvest. Claim 3: The Method according to claim 1, wherein the banana plant is subjected to stress before or during Treatment of Step (a).Claim 2: The Method according to claim 1, wherein the inhibitor of ethylene Synthesis and Perception of ciclopropeno comprises a compound or a aminovinilglicina.Claim 5: The Method according to claim 4, wherein the ciclopropeno Compound has the formula (1) wherein R is an alkyl group, alquenilo alquinilo, cycloalkyl, cicloalquilalquilo phenyl or naphthyl substituted or non substituted; where the substituents are independent, so Tooth, halogen, alkoxy substituted phenoxy or substituted or unsubstituted.Claim 9: The Method according to claim 4, wherein the compound comprises ciclopropeno 1-methylcyclopropene (1-mcp).Claim 1: a method to preserve or to Prolong the useful life or Freshness of bananas during Transport,Comprising: (a) contacting a Banana plant before harvesting the Fruit of Banana with a composition comprising an inhibitor of ethylene Synthesis or perception; and (b) to harvest The Fruit of banana after a Predetermined period of time following the step ( A); in such a way to preserve or prolongs the useful life or Freshness of banana during TransportCompared with a Banana Plant which does not come into contact with the composition before Harvest.Claim 21: a method for prolonging The Life of the Yellow bananaComprising: (a) contacting a Banana plant before harvesting the Fruit of Banana with a composition comprising an inhibitor of ethylene Synthesis or pe