Sprouting method of rapidly removing pyrus betulaefolia seeds from dormancy by using 2-thiopseudourea

Abstract

The invention provides a method for rapidly removing pyrus betulaefolia seeds from dormancy to promote sprouting thereof, and relates to a method for removing seed dormancy and a seed sprouting technology, belonging to the technical field of plant production. The invention mainly draws on a characteristic that a chemical agent 2-thiopseudourea can break up seed embryo dormancy to remove pear seeds from seed embryo dormancy so as to promote the pear seeds to germinate, improve sprouting rate and tidy the sprouting. The sprouting method by using the 2-thiopseudourea comprises the following three steps: (1) peeling seedcases of ripe fruits, washing by hands and removing pulps, using NaClO with the mass volume ratio of 20% to soak and treat the seeds to remove the pulps adhered on the seedcases; (2) soaking for 8 min by using a mercury bichoride solution with the mass volume ratio of 0.1% for sterilization, taking the clean pyrus betulaefolia seeds to be respectively placed in a 2-thiopseudourea solution with the mass volume ratio of 0.8% to soak for 24h at room temperature; and (3) washing the soaked pyrus betulaefolia seeds for five-six times by fresh water, and then seeding.

Description

technical field [0001] The invention relates to a germination accelerating method for rapidly relieving dormancy of pear pear seeds by using isothioguanidine, and belongs to the fields of botany, seed science and ecology. Background technique [0002] Pear seed dormancy refers to the state of pear seeds that are vigorous but not germinated under suitable germination conditions. As far as the pear seed itself is concerned, it is not only an important life activity process, but also a beneficial biological characteristic. adaptation. Pear seed dormancy represents an important conservation mode and is an effective way to regulate the optimal time and space for pear seed germination, ensuring the survival of pear seedlings, which is also beneficial to humans. However, pears need to go through a period of dormancy after harvesting to germinate, which often causes certain difficulties in production and scientific research. If the dormant pear seeds lack prior treatment or treatm...

AI Technical Summary

Problems solved by technology

[0003] Technical problem The purpose of this invention is to provide a method for accelerating the germination of Duli pear seeds, improve the germination potential and germination rate of the seeds, promote early seedlings, strong seedlings, and uniform seedlings, so as to solve the problem that the rootstock seeds must be processed for a long time at low temperature before they can germinate

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