SEED FINISHING
FINISH PGRs
TECH TIPS
Usually not required. Plant growth can be controlled best through proper moisture, feed and temperature management. If needed due to environmental conditions sprays of Cycocel ® at 500-1,000 ppm or B-Nine ® WSG/Cycocel ® tank mixes at 1,500 ppm B-Nine ® WSG/300 ppm Cycocel ® are effective. Avoid spraying with B-Nine ® WSG during the last few weeks of crop time to avoid reducing flower size.
Avoid overwatering to help prevent excess algae growth and to promote root growth into the media. If germinating on the bench it is helpful to cover trays with Reemay ® or similar to help retain humidity and reduce irrigation frequency. When irrigating use low pressure/volume nozzles/breakers to avoid moving seeds around in the cell. If the daily light integral (DLI) is less than 12 mols/day adding supplemental HID light will promote a more uniform crop. Do not use plug trays that have been used previously and had a crop treated with paclobutrazol grown in them. Most Begonia semperflorens will stop growing if exposed to any level of paclobutrazol. Do not irrigate with recycled water for this reason.
FINISH PGRs
TECH TIPS
Irrigate early in the day to avoid leaf scorch when high light levels are present. Allowing the soil surface to dry between irrigations will reduce algae growth. Light is not essential for emergence, but additional light at 14 hours per day will greatly enhance germination and early growth. Maintain high humidity until day 14 when it can be reduced to around 50%. Once out of the chamber, it is helpful to cover trays with Reemay ® or similar to help retain humidity and reduce irrigation frequency. Avoid irrigating with cold water. 65° is ideal.
Proper management of moisture, fertilizer, and light is the best way to control growth. If needed, Bossa Nova Begonia responds well to sprays of B-Nine ® WSG at 1,500-2,500 ppm.
FINISH PGRs
TECH TIPS
Usually not required. Plant growth can be controlled best through proper moisture, feed and temperature management. If needed due to environmental conditions sprays of Cycocel ® at 500-1,000 ppm or B-Nine ® WSG/Cycocel ® tank mixes at 1,500 ppm B-Nine ® WSG/300 ppm Cycocel ® are effective. Avoid spraying with B-Nine ® WSG during the last few weeks of crop time to avoid reducing flower size.
Avoid overwatering to help prevent excess algae growth and to promote root growth into the media. If germinating on the bench it is helpful to cover trays with Reemay ® or similar to help retain humidity and reduce irrigation frequency. When irrigating use low pressure/volume nozzles/breakers to avoid moving seeds around in the cell. If the daily light integral (DLI) is less than 12 mols/day adding supplemental HID light will promote a more uniform crop. Do not use plug trays that have been used previously and had a crop treated with paclobutrazol grown in them. Most Begonia semperflorens will stop growing if exposed to any level of paclobutrazol. Do not irrigate with recycled water for this reason.
FINISH PGRs
TECH TIPS
Usually not required. Plant growth can be controlled best through proper moisture, feed and temperature management. If needed due to environmental conditions sprays of Cycocel ® at 500-1,000 ppm or B-Nine ® WSG/Cycocel ® tank mixes at 1,500 ppm B-Nine ® WSG/300 ppm Cycocel ® are effective. Avoid spraying with B-Nine ® WSG during the last few weeks of crop time to avoid reducing flower size.
Avoid overwatering to help prevent excess algae growth and to promote root growth into the media. If germinating on the bench it is helpful to cover trays with find and replace all Reemay ® or similar to help retain humidity and reduce irrigation frequency. When irrigating use low pressure/volume nozzles/breakers to avoid moving seeds around in the cell. If the daily light integral (DLI) is less than 12 mols/day adding supplemental HID light will promote a more uniform crop. Do not use plug trays that have been used previously and had a crop treated with paclobutrazol grown in them. Most Begonia semperflorens will stop growing if exposed to any level of paclobutrazol. Do not irrigate with recycled water for this reason.
FINISH PGRs
TECH TIPS
Bowler is genetically compact and highly branching and will require few PGRs. For small containers, such as 306 packs, a spray of B-Nine ® WSG at 1,500 to 2,500 ppm about halfway through the finishing cycle will provide excellent control of leaf and plant size without reducing flower size. Bonzi ® sprays are not recommended since flower size will be significantly reduced. Plant growth regulators are usually not required for gallon containers and larger. Plant growth is best controlled through proper moisture, feed, and temperature management.
Avoid overwatering to prevent excess algae growth and to promote root growth into the media. If germinating on the bench, it is helpful to cover trays with find and replace all Reemay ® or similar to help retain humidity and reduce irrigation frequency. When irrigating, use low pressure/volume nozzles/breakers to avoid moving seeds around in the cell. If the daily light integral (DLI) is less than 12 mols/day, adding supplemental HID light will promote a more uniform crop.
FINISH PGRs
TECH TIPS
For small containers, such as 306 packs, a Bonzi ® drench at 0.25 ppm about half way through the finishing cycle will provide excellent control of leaf and plant size, but will reduce flower size about 10% temporarily. Bonzi sprays are not recommended since flower size reduction is significant. For gallons to 10” hanging baskets, sprays of B-Nine ® WSG at 2,500 ppm or B-Nine ® WSG/Cycocel ® tank mixes at 1,500 ppm B-Nine ® WSG/300 ppm Cycocel ® are effective in reducing leaf size and stem elongation and will not significantly reduce flower size. PGRs are usually not required for containers larger than 10” hanging baskets. Plant growth can be best controlled through proper moisture, feed, and temperature management.
Avoid overwatering to help prevent excess algae growth and to promote root growth into the media. If germinating on the bench, it is helpful to cover trays with Reemay ® or similar to help retain humidity and reduce irrigation frequency. When irrigating, use low pressure/volume nozzles/breakers to avoid moving seeds around in the cell. If the daily light integral (DLI) is less than 12 mols/day, adding supplemental HID light will promote a more uniform crop.
FINISH PGRs
TECH TIPS
Grow on the cool side. Calendulas are not recommended for fall crops where cool conditions cannot be maintained.
High light, cool temperatures, and proper water management is the best way to control growth. Under warmer conditions, B-Nine ® WSG sprays at 2,500-3,500 ppm can be effective to prevent stretch.
G R O W E R S U C C E S S G U I D E 2 0 2 1 – 2 0 2 2 | A N N U A L S
21
Made with FlippingBook Learn more on our blog