A kind of production method of ex situ protection dwarf holly seeds in desert area

Abstract

The invention discloses a method for producing seeds of ammopiptanthus nanus for ex-situ conservation in a desert region. The flower bud differentiation stage of ammopiptanthus nanus is managed. The method comprises the specific steps of fertilization, irrigation, prevention and control of harmful creatures and overwintering management and protection; flowering period management of ammopiptanthusnanus comprises the specific steps that prevention of low-temperature freezing damage, prevention of high wind, fertilization in spring, irrigation and artificial supplementary pollination; fruiting period management of ammopiptanthus nanus comprises the specific steps of topdressing, irrigation, prevention and control of harmful creatures and seed harvesting; through artificial fine breeding andmanagement, ammopiptanthus nanus can bloom in quantity, lots of seeds with vitality can be produced, the difficult problem of dysgenesis in ex-situ conservation is solved, and the method has importantsignificance on germplasm resource conservation and population enlargement and reproduction of a rare and endangered plant ammopiptanthus nanus.

Description

technical field [0001] The invention relates to the key technical field of seed production of national Class I rare and endangered plants in ex situ protection of arid desert areas, in particular a method for producing seeds of Ilex dwarfia in ex situ protection in desert areas. Background technique [0002] The ex situ conservation of endemic and rare and endangered species is a very important part of the global biodiversity conservation strategy. Ex situ conservation is an important means to protect species from extinction when the population of species is extremely low, or when the original living environment is destroyed by natural or human factors or even ceases to exist. Whether it can bloom and bear fruit is the core index to measure the success or failure of ex situ conservation plants. [0003] Ammopiptanthus nsnus Cheng f., also known as Xinjiang Ammopiptanthus nsnus Cheng f., is a plant of the genus Ammopiptanthus in the family Leguminosae. Discontinuously distr...

AI Technical Summary

Problems solved by technology

However, due to the extremely poor natural environmental conditions in the reserve, it is drought all year round, high temperature in summer, and severe cold in winter; the natural seed setting rate of dwarf sand holly is low, the seeds are not easy to spread, the fruit pest rate is high, and the lack of breeding conditions makes natural regeneration difficult; , the population is severely damaged, and the natural plants are becoming increasingly rare. In some distribution areas, the density is only a few hundred plants / ha or even dozens of plants / ha, and the area is less than 4310ha.

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