Harvest of fruit tree rootstock seeds
October 13 05:01:56, 2018
Collecting grafted seedlings from cold-resistant rootstocks has a strong adaptability to adverse environments. It has a great influence on the growth and development of fruit trees, fruit yield and quality, and the duration of fruiting, while the harvest of rootstock seeds is a This is a very important part, and it is the key to obtaining healthy and full-grown rootstock seeds. First, the choice of mother tree species to be selected to choose wild or family species, robust disease-free trees collected on the seed. Second, seed collection time In order to ensure that seeds are full, full, uniform and consistent, timely harvest, harvested when the fruit is ripe, Hill grapes, yellow sea bream is generally harvested in early September, Yamanashi September mid-late, early harvest seed maturity The difference in the degree, the germination rate is low, and the seedlings grow poorly. Third, threshing and preservation methods After the fruit is harvested, it is often piled in the shade or in the cylinder to prevent injury and heat, so as not to affect the seed germination rate. After the flesh is soft, the fruit is smashed and then washed thoroughly with clean water to rinse the flesh, mucus, and peel to remove impurities. The washed seeds should be kept in a cool and ventilated place and then dried. Then they are carefully selected and put in a cloth bag and kept in a cool, dry place. Fourth, the rootstock fruit seed amount is generally 1 kg Yellow Sea Clam needs fresh fruit 50-60 kg, 500000-60000 seeds per kilogram; 1 kg Yamanashi needs fresh fruit 130-150 kg, 16,000-20000 seeds per kilogram of seed; 1 kg of mountain apricot required 10-20 kilograms of fresh fruit, 800-1200 seeds per kilogram of seed; 1 kilogram of hair cherry needs 20 kilograms of fresh fruit, 10,000-12,000 seeds per kilogram of seed, 1 kilogram of mountain grapes need 15-20 kilograms of fresh fruit, 28,000 seeds per kilogram of seed. Fifth, the need to pay attention to the problem of storage of seeds During storage, the main conditions affecting the seed physiological activity is the seed moisture content, storage temperature, humidity and ventilation conditions. Practice has proved that the safe moisture content of most seeds stored is approximately equal to its fully air-dried moisture content. The water content of seeds such as jellyfish and Yamanashi is about 13% to 16%, and the water content of plum, apricot, cherry, and grape can reach 20% to 24%. Humidity in storage environment is likely to cause mildew. During storage, the relative humidity of air is kept at 50%-80%, and the air temperature is 0-8°C. It is also advisable to pay attention to ventilation, and to pay attention to pest control and rodent damage. China Agricultural Network Editor