truepunk87
Well-Known Member
We use sumagic at bonnies ...... http://www.gpnmag.com/plant-growth-regulator-revolution-changing-commercial-production-plants
" In the past, plant growth regulators have, for the most part, been considered tools used by growers to control plant height. This will probably remain the primary purpose of these chemicals. However, there are some new areas where growers are using plant growth regulating chemicals.EthylBloc (MCP) is an ethylene-action inhibitor, which inhibits the negative effects of ethylene. This product is being used to help prevent shattering of flowers, eliminate leaf yellowing, reduce flower browning, and stop flower and leaf drop. EthylBloc is a wettable powder, and when mixed with a liquid buffer solution, releases a gas (MCP). This gas binds to the ethylene receptor in plant cells, inhibiting the negative effects of ethylene. EthylBloc is approved by the EPA and is manufactured by Floralife.Fascination, a combination of GA4+7 and BA, is about to be introduced and labeled for several new uses. The first labeled use of this product will be for the prevention of leaf yellowing in Easter, Oriental and LA Hybrid lilies. Foliar chlorosis is considered the primary factor contributing to low post-production longevity of potted Easter lilies. Many growers watch as their crop goes through a gradual leaf yellowing, which usually begins near or before the visible bud stage. Growers can also experience a post-harvest leaf yellowing of their crop, which may be dramatic, with rapid leaf yellowing occurring on finished plants prior to sale.When used preventively, Fascination plant growth regulator can inhibit both types of leaf yellowing. This product must be used carefully, however. It is intended to be applied only to the lower foliage. If the immature leaves come into contact with the spray solution, an unwanted stem elongation may result. Uniformity of coverage is extremely important because the spray is only effective where it comes into contact with the leaves.The second labeled use of Fascination is to prolong the length of flowering in Easter, LA Hybrid and Oriental lilies. Current research on Nellie White Easter lily has shown that one application of Fascination prolonged the length of flowering from five to eight days to 18 to 24 days. This label for Fascination was approved by the EPA and is expected to be available from Valent USA in early 2001.ProGibb (GA3) is another plant growth regulator that is being developed for use in a number of different floricultural crops. Its uses include breaking flower bud dormancy, increasing flower number and size, promoting earlier flowering and increasing stem elongation for the production of tree forms of geraniums and fuchsias. This product will be distributed by Valent USA and is expected to be available in the near future.AVG (aminoethoxyvinylglycine) is an amino acid that inhibits the onset of ethylene production in plants. The benefits of this product are very similar to EthylBloc, as it extends flower longevity and reduces flower senescence, flower bud abscission and leaf yellowing. AVG is applied as a spray, which could make it more predictable and easier to use than a gas such as MCP. This product has an approved label for some crops, but currently does not have a name. It will hopefully be available from Valent USA by the year 2002.The Evolution of Growth RegulatorsThrough enhanced crop production, plant growth regulators have a very exciting and positive future with todays floriculture producers. Growers are developing many new application methods for the chemicals currently available and will continue to discover many new uses and new chemicals for plant growth regulators in the future.plantgrowthregulatorrevolution.pdf
About The Author
Paul Pilon is the head grower at Sawyer Nursery in Hudsonville, Mich.
" In the past, plant growth regulators have, for the most part, been considered tools used by growers to control plant height. This will probably remain the primary purpose of these chemicals. However, there are some new areas where growers are using plant growth regulating chemicals.EthylBloc (MCP) is an ethylene-action inhibitor, which inhibits the negative effects of ethylene. This product is being used to help prevent shattering of flowers, eliminate leaf yellowing, reduce flower browning, and stop flower and leaf drop. EthylBloc is a wettable powder, and when mixed with a liquid buffer solution, releases a gas (MCP). This gas binds to the ethylene receptor in plant cells, inhibiting the negative effects of ethylene. EthylBloc is approved by the EPA and is manufactured by Floralife.Fascination, a combination of GA4+7 and BA, is about to be introduced and labeled for several new uses. The first labeled use of this product will be for the prevention of leaf yellowing in Easter, Oriental and LA Hybrid lilies. Foliar chlorosis is considered the primary factor contributing to low post-production longevity of potted Easter lilies. Many growers watch as their crop goes through a gradual leaf yellowing, which usually begins near or before the visible bud stage. Growers can also experience a post-harvest leaf yellowing of their crop, which may be dramatic, with rapid leaf yellowing occurring on finished plants prior to sale.When used preventively, Fascination plant growth regulator can inhibit both types of leaf yellowing. This product must be used carefully, however. It is intended to be applied only to the lower foliage. If the immature leaves come into contact with the spray solution, an unwanted stem elongation may result. Uniformity of coverage is extremely important because the spray is only effective where it comes into contact with the leaves.The second labeled use of Fascination is to prolong the length of flowering in Easter, LA Hybrid and Oriental lilies. Current research on Nellie White Easter lily has shown that one application of Fascination prolonged the length of flowering from five to eight days to 18 to 24 days. This label for Fascination was approved by the EPA and is expected to be available from Valent USA in early 2001.ProGibb (GA3) is another plant growth regulator that is being developed for use in a number of different floricultural crops. Its uses include breaking flower bud dormancy, increasing flower number and size, promoting earlier flowering and increasing stem elongation for the production of tree forms of geraniums and fuchsias. This product will be distributed by Valent USA and is expected to be available in the near future.AVG (aminoethoxyvinylglycine) is an amino acid that inhibits the onset of ethylene production in plants. The benefits of this product are very similar to EthylBloc, as it extends flower longevity and reduces flower senescence, flower bud abscission and leaf yellowing. AVG is applied as a spray, which could make it more predictable and easier to use than a gas such as MCP. This product has an approved label for some crops, but currently does not have a name. It will hopefully be available from Valent USA by the year 2002.The Evolution of Growth RegulatorsThrough enhanced crop production, plant growth regulators have a very exciting and positive future with todays floriculture producers. Growers are developing many new application methods for the chemicals currently available and will continue to discover many new uses and new chemicals for plant growth regulators in the future.plantgrowthregulatorrevolution.pdf
About The Author
Paul Pilon is the head grower at Sawyer Nursery in Hudsonville, Mich.
