Physical control method for out-of-season blossoming of longans and culture container

Abstract

The invention relates to a physical control method for the out-of-season blossoming of longans and a culture container. The method comprises the following steps of: a preparation step: in which the culture container is put on an isolating layer, a drain pipe is arranged at the bottom of the culture container, and loosened culture media are put in the culture container; a transplanting step in which: longan seedlings are transplanted to the culture container; a pruning step: in which the branches of the transplanted longan seedlings are sheared short in each January to March from the next year after transplanting; a water control step: in which the relative water content of the loosened culture media is controlled between 14.11% and 21.46% until the leaf color of the bearing branches of longan trees turns green from vermilion; a water control drought processing step: in which the relative water content of the loosened culture media is controlled between 12% and 14% until the terminal bud leaf axils of the bearing branches of the longans show the appearance expression of flower bud differentiation; and a rewatering step: in which the relative water content of the loosened culture media is controlled between 35% and 40% until flowers wither. The out-of-season flower bud differentiation of the longans can be effectively induced by an appropriate drought processing means.

Description

technical field [0001] The invention relates to the field of regulation of off-season flowering of woody fruit trees, in particular to a physical regulation method for off-season flowering of longan. Background technique [0002] In my country and other subtropical regions, longan is an evergreen fruit tree that blooms once a year. After being induced by relatively low temperature (8-16°C) in winter, it produces flowers and fruits once a year in spring (that is, the normal flowering season). Two-flowered tropical longan varieties can achieve twice-a-year flowering and fruit setting, but after tropical longan varieties are introduced to subtropical regions for cultivation, the temperature cannot reach longan flower buds in non-low temperature seasons such as summer, autumn or even spring in subtropical regions. This relatively low temperature range of 8 to 16 °C required for induction is required, and it is easy to show the characteristics of one flower a year. To this end, ...

AI Technical Summary

Problems solved by technology

[0004] At present, an existing physical control method is to promote the second flowering of the longan variety 'Sijimi' by "short-cutting". The effect is gradually insignificant (Zhu Fangde, Zhang Hailan, Wu Dingyao, etc., "Physical regulation and control to promote the batch flowering and fruit setting technology of Sijimi longan", "Guangdong Agricultural Science", 2003 (2): 8-10)

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