Large-seed seedling raising method of woody plant

Abstract

The invention discloses a large-seed seedling raising method of a woody plant, which belongs to plant breeding methods. The method comprises the following steps: (1) collecting mature fruits of Chinese chestnuts and Carya illinoensis in time in autumns; and preparing the fruits to obtain seeds for the future use; (2) storing the seeds by sand after disinfecting the seeds; (3) sowing the seeds stored by the sand on a sand bed with a plastic arched shed in early spring in the next year; (4) when the seeds sprout, shearing off embryos during moving out the seedling out of the sand bed; fixedly planting seedling in a big field; and carrying out intertilling, weeding, fertilizing and other conventional managements on the seedling field in the seedling stage. According to the invention, after the embryos of the large-seed seedlings of the woody plant are sheared off, the seedlings can be moved by thin bamboo sticks; therefore, a hole digging procedure is saved; compared with the traditional seedling transplanting efficiency, the seedling transplanting efficiency of the large-seed seedling raising method is increased by 50-80%; and overground parts and underground parts of the seedlings are promoted to rapidly grow in an erect way.

Description

[0001] Technical field [0002] The invention relates to a woody plant breeding technology, in particular to a breeding method for sowing and raising seedlings of woody plants with large seeds. Background technique [0003] The large seeds of woody plants refer to the seeds of tree species such as Fagaceae (Fagaceae) Chestnut (Castanea L.), Quercus (Quercus L.) and Juglandaceae (Juglandaceae) Juglans regia (Juglans regia L.). Common tree species include chestnut, oak, walnut, and pecan with thin shells. The seeds are larger in shape, generally 2 to 5 cm long and 1 to 3.5 cm in diameter. The traditional method of seed sowing and raising seedlings is to directly sow the seeds in the soil. Due to the fact that there are many pathogenic bacteria such as seedling damping-off and underground pests in the soil, coupled with factors such as poor soil aeration, the seeds sown in the soil will germinate in the field. The germination rate is very low, which brings losses to the producti...

AI Technical Summary

Problems solved by technology

The traditional method of seed sowing and seedling raising is to directly sow the seeds in the soil. Due to the many pathogenic bacteria and underground pests in the soil that cause seedling damping-off, and the poor soil aeration, the seeds sown in the soil will germinate in the field. The germination rate is very low, which brings losses to the production of forest tree seedlings; if the seeds are sown in the sand bed through sand storage, although the germination rate of the seeds can be increased, but because the seed embryos of these trees have a large shape, large holes need to be dug when the seeds emerge and transplant Planting, it is difficult to transplant seedlings, and the efficiency is low. At the same time, due to the large seed embryos, the germ and radicle bend and grow, and the seedlings are prone to form partial or curved roots.