US 12,349,636 B2Granted

Method for cultivating tung tree seedling by hypocotyl grafting

AssigneeCentral South University of Forestry and Technology

InventorsZe Li, Yeyao Liu, Hanyu Shu, Haoyu Wang, Renrong Peng, Hui Zhang, Fangfang Ma, Chengrui Luo, Xiaofeng Tan, Wende Yan, Lin Zhang, Hongxu Long, Lingli Wu, Xiaoqin Mi, Lesheng Li

Life of this patent

Estimating the term…

patentgrep

Loading patent…

Abstract

A method for cultivating a Tung tree seedling through hypocotyl grafting, includes selection of a sand storage time of a rootstock (Vernicia montana Lour.) seed, seedbed construction, scion collection, scion cutting, rootstock cutting, bandaging, transplantation and management, and the like.

A method for cultivating a Tung tree seedling through a hypocotyl grafting, comprising the following steps:

(1) a rootstock cultivation:
beginning a subjection of a Vernicia montana Lour. seed to a sand storage in early April to late June of a given year, wherein the sand storage is performed for 25 d to 50 d before a grafting until an epicotyl is exposed above a sand surface and a true leaf grows to obtain a rootstock;
(2) a scion collection:
from May to July of the year, collecting a semi-lignified shoot with robust growth, full buds, and no diseases and pests of the year as a scion;
(3) a scion cutting:
cutting a lower part of the scion with an axillary bud to form a cut scion with a wedge-shaped bevel;
(4) a rootstock cutting:
for the grafting, cutting off an upper plumular axis of the rootstock at a position with a closest thickness to the scion, and cutting a grafting interface downward longitudinally on a section of a hypocotyl in a direction perpendicular to a transverse section to form a cut rootstock;
(5) the grafting:
inserting the cut scion into the grafting interface of the cut rootstock, making the cut rootstock and the cut scion tightly joined together with at least one pair of cambium layers aligned, and bandaging for a fixation to form a grafted seedling;
(6) a transplantation:
before the grafting, arranging a shading net above a seedbed as a whole;
transplanting the grafted seedling to the seedbed with the grafting interface higher than a soil plane, and after the transplantation is completed, watering for a first time;
and when an axillary bud length of the grafted seedling reaches greater than or equal to 10 cm, removing the shading net to improve a photosynthetic efficiency;
and
(7) a management:
after the grafted seedling is transplanted, watering to keep a soil at a specified humidity;
and after the grafted seedling is cultivated for 50 d, spraying urea on leaves of the grafted seedling.

15 more elements

Abstract

Claims13