The seeds of most trees mature in the fall. The seeds of different trees are different in their collection and storage methods. Among them, berry can not be picked up by stacking, so as to prevent heat from burning out the seeds; large-grained seeds and seeds that need to keep more water should use 3 wet sands for 1 seed, and the ratio should be stored in layers, or be accompanied by sowing. Generally, seeds should not be sealed in plastic bags for long-term storage, and at the same time, they must maintain a certain amount of water content. During storage, they must be protected against rodent damage and mildew, and they should be checked every time. The seed collection should also pay attention to the age of the mother tree. The fast-growing species should be over 10 years old, the slow-growing species should be more than 20 years, and the medium-sized species should be over 15 years; and the mother trees that have good growth and no serious pests should be selected. The classification of the seed species of the main tree species and the different fruits is described as follows: The mature period of coniferous trees 1, Chinese fir, cedars, and metasequoia trees is from October to November. The fruit ripening characteristics are yellow-brown and the fruit processing method is sun. Cone, take off the seed. 2. The mature period of tree species such as Cypress and Platycladus orientalis is from October to November. The fruit ripening characteristic is yellow-brown. The fruit processing method is to put the fruit in the indoor and cooked for several days, and then take the fruit for drying. 3. The maturation of Pinus massoniana, Pinus taiwanensis, and Pinus elliottii trees is from November to December. The fruit ripening characteristic is yellowish-brown. The fruit processing method is: fruit is first sprinkled with lime water, skimmed and then exposed to sunlight, and fruit shells are taken off. seed. The storage methods for the coniferous seeds are: when used in seed bags, woven bags, and cylinders, they are usually stored; if they are not used for a long time, use plastic bags and cylinders to seal them and prevent them from returning moisture. The maturity of Samara 1 and Camptotheca acuminata is from October to November, and the fruit ripening characteristic is yellow. The fruit processing method is the drying and drying fruit stems, and the seed storage method can be stored as usual. 2. The maturation period of skunk is from July to August. The fruit ripening characteristic is yellowish-brown. The fruit processing method is dried branches, and the seed storage method is ordinary dry storage. 3, the mature period of Eucommia in October-November, fruit ripening characteristics of yellow-brown, fruit processing method is dry out of the seed, the seed storage method is layered, with wet sand storage. The mature period of pods 1 and paulownia is from October to November, and the fruit ripening characteristics are brown. The processing method of the fruit is to dry the seeds in the drying mountains and the seed storage characteristics are dry. 2. The maturation period of Toona sinensis is from October to November. The fruit ripening characteristic is yellowish-brown. The fruit processing method is to light the seeds out of low light, and the storage method is dry storage. 3. The mature period of eucalyptus trees is from October to November. The fruit ripening features are yellowish-brown. The fruit processing method is to dig out the seeds of the fruit, and the method of storage of the seeds is to seal and dry the plastic bags. The ripening period of berry and eucalyptus is November, and the fruit ripening feature is black. The fruit processing method is to immerse in water for several days, remove the pulp, and then mix the ash and defatted and dried. 2. The mature period of Phoebe genus is from November to December, and the fruit ripening features are purple-black. The fruit processing method is to dip the dried fruit in water. 3, the ripening period of persimmon in October-November, fruit ripening characteristics of yellow-red, fruit processing method is piled up fruit rotten, wash out the seeds. The storage method of berry seeds is layered wet sand, and the seeds of eucalyptus and eucalyptus can also be preserved. Verification Class 1, Ginkgo biloba's maturation period in October, the fruit ripening characteristic is light yellow, the fruit processing method is stacking several days, remove the pulp, wash and dry. 2. The ripening period of tartary buckwheat trees is from November to December. The fruit ripening characteristics are yellow. The fruit processing method is stacking in water for several days. Wash the pulp and dry it. 3. The mature period of Taxus in October-November, the fruit ripening characteristic is red, the fruit processing method is to dip the buffalo to peel, wash and dry. Drupe seeds are stored in layers using wet sand deposits. China Agricultural Network Editor
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