Chimonanthus praecox flowering phase control method

A technology for wax plum and plum blossom buds, which is applied in the field of plant flowering period regulation, can solve the problems of complex calculation and inappropriateness of dynamic model estimation of cooling demand.

Active Publication Date: 2019-12-20
SOUTHWEST UNIVERSITY
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0009] The 'dynamic model' takes into account the negative effect of high temperature on relieving dormancy, and proposes a dynamic model for the offsetting effect of high temperature on low temperature, taking into account the different effects of the same temperature in the tem

Method used

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  • Chimonanthus praecox flowering phase control method
  • Chimonanthus praecox flowering phase control method
  • Chimonanthus praecox flowering phase control method

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Embodiment 1

[0031]The test materials are adult wintersweet 'Suxin' and 'Changkou' wintersweet, which grow and bloom normally on the campus of Southwest University in Chongqing. These two varieties are more common and widely used among many varieties of wintersweet. 'Suxin' wintersweet (C.praecox'concolor') has pure yellow perianth, the inner ring color is close to solid color, the flowers are larger and the fragrance is stronger; The tepals are light yellow, and the inner perianth has purple-red edges and stripes. The flowers are the largest and have a clear fragrance.

[0032] In mid-November, 2018, three plants of 'Suxin' and 'Changkou' wintersweet were selected in the same growth environment and similar in growth, and three repeated experiments were set up. Three large branches were selected on each plant, and three large branches were selected on the large branches. According to the upper, middle and lower positions, 20 small branches were randomly selected on average, and the phenolo...

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Abstract

The invention provides a method for low-temperature induction control over the chimonanthus praecox flowering phase. The method for low-temperature induction control over the chimonanthus praecox flowering phase comprises the steps that chimonanthus praecox is placed under the temperature of 12 DEG C or below for low-temperature treatment, and when the cold amount reaches 570 CU, chimonanthus praecox buds can normal expand and bloom. According to the 'Utah model' and '7.2 DEG C model', the chimonanthus praecox flowering stage morphologic data can be observed and counted, meanwhile, the 'suxin'and 'qingkou' chimonanthus praecox variety blooming cooling capacities are preliminarily researched, and results show that the 'suxin' and 'qingkou' chimonanthus praecox variety blooming cooling capacities are 558 CU and 570 CU respectively. On the basis, 12-year-old robust potted 'suxin' chimonanthus praecox seedlings are subjected to different-low-temperature artificial induction treatment, andbuds treated under the temperatures of 4,8,12 DEG C can normally expand and bloom, wherein expand and blooming can be achieved when the cooling capacity under the temperature of 12 DEG C can reach 570 CU. the method can effectively control the chimonanthus praecox flowering stages, and the chimonanthus praecox can bloom ahead of the schedule or be postponed.

Description

technical field [0001] The invention relates to the field of regulating the flowering period of plants, in particular to a method for regulating and controlling the flowering period of Wintersweet. Background technique [0002] Wintersweet [Chimonanthus praecox (L.) Link] belongs to Chimonanthus praecox (L.) Link, which is a clustered, deciduous shrub of the family Chimonanthus. It has few pests and diseases and a long life span. It is a traditional ornamental precious flower with a long history in my country. Seven thousand years of application history. Its flowering period is from late November to March of the next year. It blooms in the middle of winter, fighting the cold and proud of the frost, with simple tree posture, elegant flower shape, and tranquil flower fragrance. The ornamental value, ecological value, economic value and social value of wintersweet are all very high. As the flower of December, it is the most prominent in the application of gardens. It can be pla...

Claims

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Application Information

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IPC IPC(8): A01G7/06A01G17/00
CPCA01G7/06A01G17/005
Inventor 李志能眭顺照刘宁江英杰李名扬李先源
Owner SOUTHWEST UNIVERSITY
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