Use of phenylpyrazolin-3-carboxylates for improving plant yield

Abstract

Compounds (A) can be used for increasing the yield of useful plants or crop plants with respect to their harvested plant organs, wherein the Compound (A) is selected from compounds of the formula (I) or salts thereof, in which (R 1 ) n is n radicals R 1 where the R 1 are identical or different and are each halogen or (C 1 -C 4 )-haloalkyl, n is an integer from 1 to 3, R 2 is hydrogen, (C 1 -C 6 )-alkyl, (C 1 -C 4 )-alkoxy-(C 1 -C 4 )-alkyl, (C 3 -C 6 )-cycloalkyl, tri-(C 1 -C 4 )-alkyl-silyl or tri-(C 1 -C 4 )-alkyl-silylmethyl, R 3 is hydrogen, (C 1 -C 6 )-alkyl, (C 1 -C 6 )-haloalkyl, (C 2 -C 6 )-alkenyl, (C 2 -C 6 )-alkynyl or (C 3 -C 6 )-cycloalkyl, and R 4 is hydrogen or (C 1 -C 12 )-alkyl, preferably mefenpyr-diethyl (Compound (A1)]

1 . Use of a Compound (A) capable of being used for increasing yield of a useful plant and/or crop plant with respect to a harvested plant organ, which plant is growing in a normal habitat, and wherein the Compound (A) is selected from the group consisting of compounds of the formula (I) and/or salts thereof, 
       
         
           
           
               
               
           
         
       
       in which
 (R 1 ) n  is n radicals R 1  where the R 1  are identical or different and are each halogen or (C 1 -C 4 )-haloalkyl, 
 n is an integer from 1 to 3, 
 R 2  is hydrogen, (C 1 -C 6 )-alkyl, (C 1 -C 4 )-alkoxy-(C 1 -C 4 )-alkyl, (C 3 -C 6 )-cycloalkyl, tri-(C 1 -C 4 )-alkyl-silyl or tri-(C 1 -C 4 )-alkyl-silylmethyl, 
 R 3  is hydrogen, (C 1 -C 6 )-alkyl, (C 1 -C 6 )-haloalkyl, (C 2 -C 6 )-alkenyl, (C 2 -C 6 )-alkynyl or (C 3 -C 6 )-cycloalkyl, and 
 R 4  is hydrogen or (C 1 -C 12 )-alkyl. 
 
     
     
         2 . A Compound A as claimed in  claim 1 ,
 wherein (R 1 ) n  is n radicals R 1  where the R 1  are identical or different and are each F, Cl, Br or CF 3 .   optionally n is 2 or 3.   optionally R 2  is hydrogen or (C 1 -C 4 )-alkyl.   optionally R 3  is hydrogen, (C 1 -C 4 )-alkyl, (C 2 -C 4 )-alkenyl or (C 2 -C 4 )-alkynyl.   optionally R 4  is hydrogen or (C 1 -C 8 )-alkyl.   
     
     
         3 . The Compound A as claimed in  claim 1 , wherein Compound (A) is mefenpyr-diethyl. 
     
     
         4 . The Compound A as claimed in  claim 1 , which is capable of increasing grain yield of a crop plant selected from group consisting of cereals, canola, soybean and cotton crops. 
     
     
         5 . The Compound A as claimed in  claim 1 , which is capable of increasing grain yield of a crop plant selected from group consisting of wheat, barley, rye or triticale plants. 
     
     
         6 . The Compound A as claimed in  claim 1 , which is capable of increasing gluten content of seed kernels of a crop plant selected from group consisting of cereals, canola and soybean crops. 
     
     
         7 . The Compound A as claimed in  claim 1 , which is capable of increasing gluten content of seed kernels of a crop plant selected from group consisting of cereal crops. 
     
     
         8 . The Compound A as claimed in  claim 1 , which is capable of increasing protein content of seed kernels of a crop plant selected from group consisting of cereals, canola and soybean crops. 
     
     
         9 . The Compound A as claimed in  claim 1 , which is capable of increasing yield of an amount by weight of beets of a beet plant. 
     
     
         10 . The Compound A as claimed in  claim 1 , which is capable of increasing sugar content of a sugar plant. 
     
     
         11 . The Compound A as claimed in  claim 1 , which is capable of increasing germination and emergence of a cereal crop. 
     
     
         12 . The Compound A as claimed in  claim 1 , which is capable of increasing biomass yield of a maize plant growing in absence of extraordinary environmental conditions. 
     
     
         13 . The Compound A as claimed in  claim 1 , which is capable of increasing biomass yield of a sugar plant. 
     
     
         14 . A method for increasing yield of a useful plant and/or crop plant with respect to a harvested plant organ which plant is growing in a normal habitat, said method comprising applying a Compound (A) as defined in  claim 1  in an effective, optionally non-phytotoxic amount to a crop plant, a seed from which said crop grows, and/or to a locus in which said plant grows in a normal habitat. 
     
     
         15 . The method according to  claim 14 , wherein said Compound A is applied in combination with one or more compounds selected from the group of fungicides, insecticides and plant growth regulators. 
     
     
         16 . The method according to  claim 15 , wherein said Compound A is applied in combination with (i) fluoxastrobin and prothioconazole, (ii) pyraclostrobin and metconazole, (iii) trifloxystrobin and propiconazole, (iv) trifloxystrobin and prothioconazole, (v) prothioconazole and tebuconazole, (vi) bixafen and prothioconazole, (vii) bixafen and tebuconazole, and/or (viii) bixafen and trifloxystrobin. 
     
     
         17 . The method according to  claim 15  and in which Compound (A) comprises mefenpyr-diethyl. 
     
     
         18 . A plant yield increasing composition comprising a Compound A as claimed in  claim 1 , and further comprising combination of two fungicides which combination is selected from the group consisting of (i) pyraclostrobin and metconazole, (ii) trifloxystrobin and propiconazole, (iii) prothioconazole and tebuconazole, (iv) fluoxastrobin and prothioconazole, (v) trifloxystrobin and prothioconazole, (vi) bixafen and prothioconazole, (vii) bixafen and tebuconazole, and (viii) bixafen and trifloxystrobin. 
     
     
         19 . The plant yield increasing composition according to  claim 18  and wherein said Compound (A) is mefenpyr-diethyl.