The regulation of flowering

significance of the first and flowering adjustments?: apply cultivation techniques, pharmaceutical treatment or change the cultivation environment methods, so that plants change the natural flowering period, open flowers from time to time. The purpose of flowering adjustment is to provide products on time according to market or application needs, to enrich the festival or regular needs, manually adjust the flowering period, can shorten the production cycle, accelerate land use turnover, provide flowers on time, improve economic efficiency.。 Second, what are the ways of flowering adjustment?: the method of temperature control, the method of light regulation, the method of treatment with cultivation measures and the method of chemical agent.。 Third, what conditions should be met before flowering control?。 (1) Fully understand the characteristics of the growth and development of cultivated objects, such as: nutritional growth, flower induction, bud differentiation, germination and development process and the necessary environmental conditions, sleep and lifting sleep characteristics and requirements.。 (2) Sometimes only one measure is required to achieve the purpose of regular flowering, and sometimes a combination of measures is required in order to achieve the purpose.。 (3) In controlling the environment to regulate flowering, it is necessary to understand the effective range and the most appropriate range of the effect of various environmental factors on the cultivation object, to clear the range of qualitative effect and the scope of quantum action, and also to understand the interrelation between the environmental factors, whether there is mutual promotion or mutual inhibition or replacement of performance, in order to make up for each other if necessary.。 (4) The control environment to achieve flowering adjustment needs to be added light, blackout, heating, cooling and refrigeration and other special facilities, before the implementation of cultivation must first understand or test whether the performance of facilities, equipment and the requirements of the cultivation object, otherwise it may not achieve the goal.。 (5) When controlling environmental regulation and flowering, we should make best use of the natural season's environmental conditions to save energy and facilities.。 (6) Manual adjustment flowering, must have clear objectives and strict operating plans.。 (7) Artificially adjusted flowering should be based on the period of selection of suitable varieties.。 (8) Whether it is to promote or inhibit cultivation, it needs to be in line with the conventional management of soil, fertilizer, water, gas and pest control, and should not be taken lightly.。 Fourth, in the flowering regulation, what is the main role of temperature? Give an example.: The main effect of temperature is to regulate the sleep period, flowering induction and flower bud formation period, flower stem extension for a long period of time and other processes, to adjust the flowering period.。 (1) Tang Pu plant ball at 2-5 degrees C low temperature, refrigeration for 5 weeks can break sleep, early planting, early flowering period;。 (2) Tulips promote cultivation, the selection of early flower varieties, early ball, summer sleep period to provide 20-25 degrees C temperature, so that the bulbs smoothly differentiate the leaf and flowering foundation, once the buds form, can be used 5-9 degrees C artificial refrigeration to meet the root and stem elongation preparation requirements of low temperature. When buds begin to elongate and gradually heat up from 13 to 20 degrees C for foster cultivation, they can bloom 12-1 months in advance. When the buds form after the cold storage delay rooting period, or after meeting the flower stem elongation preparation requirements of low temperature, cooling refrigeration in 2 degrees C, delayed heating, can be delayed until March-April or later flowering. 。 (3) Hibernation of the root flowers are mainly the use of low temperature to break sleep and extend the period of forced sleep to adjust. Six flowers at the appropriate temperature can continue to occur new buds, bud formation needs to be induced by 5-13 degrees C low temperature. It takes about 4-6 weeks at 5 degrees C. After spring, if the high temperature of 15-17 or more can be lifted spring. Summer cultivation needs to use underground cold
water cycle
to maintain the ground temperature of 15 degrees C can continue to flower, otherwise can only be planted in winter after springing of new seedlings. 。 (4) Woody flowers that dormant in winter: Buds that are lifted from hibernation during the winter germination grow and bloom in spring. Promote cultivation can be artificially low temperature to break sleep, and then by heating up to promote flowering. Delayed cultivation is refrigerated to prolong forced sleep and delay flowering. Eight fairy flowers are the formation of buds on the fresh branches that germinate in winter, and can also control sleep regulation flowering. Breaking the hibernation temperature is 4-10 degrees C for 6-8 weeks, and high temperatures take a long time. It promotes the cultivation of 15-20 degrees C, and the buds can be delayed when the temperature is high. 。