How to choose avocado seeds? What are the methods of raising seedlings?

We all know that eating fruit is good for our health, so we can usually buy more fruit to eat. Now there are still many kinds of fruits on the market. I don't know if you have ever eaten avocado. It can be eaten not only as a vegetable but also as a fruit with high nutritional value. How are the avocado seeds selected? What are the methods of raising seedlings? friends who want to plant can take a look at the following!

First, how to select avocado seeds?

Avocado seeds are mostly purchased from neighboring Vietnam or Myanmar, and the variety and quality of seeds are basically non-existent. Avocado seeds can be selected from the following aspects:

1. Seed size

Seed size refers to the amount of nutrients that can be directly used during seed germination and seedling growth. seeds contain more nutrients, buds are strong, culms are thick, seedlings are good after planting, and they can be grafted earlier and come out of the nursery faster.

2. Seed coat stripping

The avocado seed is wrapped with a layer of waxy seed coat, which needs to be stripped, which is beneficial to the seed nucleus to absorb water and shorten the budding time. For those difficult to peel off, the pulp and sundries attached to the seed coat should be cleaned.

3. Seed classification

Seeds should be distinguished according to size, good or bad. Size score: it is convenient for subsequent seedling bagging and separate management of strong and weak seedlings; good and bad points: separate germination of damaged and non-rotting seeds in the process of harvest and transportation to avoid possible disease infection.

2. Seedling raising methods of avocado seeds

1. Buy fresh avocado seeds

First of all, the purchase of fresh avocado seeds is the first condition for successful nursing. according to statistics, the germination rate of intact avocado seeds freshly peeled for one day at room temperature is more than 95%, and the budding rate is reduced by 92% after 2 days. About 90% on the third day, and the budding rate in 4-7 days is basically about 85%. Under normal circumstances, the seed germination rate is determined by the preservation conditions of the seeds.

2. Raising seedlings with fine sand

After washing the pericarp, drip dry in a cool environment. Fine sand needs to be sprayed with river sand, with 1000 times topiramate spray, disinfection or carbendazim 500x dilution spray to prevent virus invasion. In the early stage, the water content of the sand must not exceed 50%. It must be evenly spread on the breathable ground with a thickness of 15 cm. Bury the seeds in the sand pile, leaving a bottom of 5 cm, and bury the part with sand. On the Internet, many people ask to soak gibberellin to promote sprouting. The reason why gibberellin is used here is that it is very effective to use gibberellin, but if it is used too much, it will inhibit seed germination.

3. Prevention of diseases and insect pests

The shading rate of the avocado seedling area is controlled at about 60%, and you can choose to use a 3-needle sunshade net. Under normal circumstances, seedlings basically grow roots in 5 to 10 days, when the rhizome is still emerging from the ground, you need to pay attention to a disease, insect prevention should also pay attention to prevention. Rhizoctonia solani is the most common disease in seedling rearing. It is preventable and needs to be sprayed after sprouting 5cm from the ground. For medicinal use, you can choose 50% methanolyl wettable powder 600x liquid, or 5% Jinggangmycin water agent 1000 times liquid plus 70% methyl topiramate 1000 times solution or mixed with humic acid rooting agent to control sand moisture at 50%. Spray water once a day. Do not drench. Crickets are also harmful to seedlings. In view of this situation, chlorpyrifos can be sprayed to effectively prevent crickets from biting off branches. After the seedlings are lignified, there is no need for prevention. When it grows to about 10 centimeters, it can be transplanted to a nutrition cup, and the soil of the nutrition cup must be disinfected in advance to do a good job of prevention.

I don't know if you have eaten avocado, and its edible value is not generally high, so you can also buy and eat it if you can grow it at home. It is even better to choose from the above aspects when selecting seeds. It is also good to learn from some of the above methods when raising seedlings.

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