Do you know what is the world's largest plant seeds? It is the sea coconut from seychelles, looks larger than basketball, with both hands to lift. Because of his strange shape, the local people describe its seeds is "girl's hip."
To ensure that Chinese cabbage seed purity
A, miscellaneous inferior to strictly
Production in recent years on the application of Chinese cabbage seeds, most is the hybrid generation, its hybrid parent types are breeding by the department of scientific research system, every parent has certain typical plant trait. According to the characteristics of its parent in the seed production, strict to miscellaneous, rogue, to strain, suspicious strains better not leave, this is one of the measures to guarantee the seed purity is indispensable.
Second, to ensure that the isolation conditions
Chinese cabbage seed farm must and other varieties of Chinese cabbage, Chinese cabbage, rape, extraction, turnip, trailing stems, mustard, such as mining farming isolation, a distance of more than 1000 metres. In isolation in the field of vegetable production, in the event of premature bolting commodity food (such as a small rape, etc.), should prompt remoal bolting plants. Ownership farming flowering, the isolation zone and Chinese cabbage is not permitted in parents can seed into other cruciferae pollen, this is the key to ensure Chinese cabbage seed purity.
Seed production according to the feature, the parents will use the stagger seeding time, management of parents, respectively, control the temperature, light, water, and training and other ways to adjust meet parents flowering, two parent pollen counts quite a kind of strain ratio of 1:1 and 1:2. If meet flowering is not good, or pollen quantity can't meet each other, will produce rogue, affect the purity, so when entering the early flowering, if discover a parent first flowering, to open flowers, pinched off early at the end of the final flowering when a parent flowering, with a bamboo pole to early in the morning of another parent abort all not open flowers, prevent single personally make seeds, this is to increase grain, the effective measures to ensure the inspectional.
Four, bee pollination
Chinese cabbage is entomophilous flower crop, pollination is the main medium of the bees. In natural bee source shortage, it is best 1-2 mu flowering period in the seed production release a hive, to increase the chance of insect-borne hybridization. Bees pollinate many directly influences the inspectional and yields of seed, but pay attention to the prevention and control of spraying aphids to avoid the bees poisoning death, to eradicate aphids and other pests, before flowering flowering if aphids harm, can spray 50% monarch aphid fog (pirimicarb) wettable powder 2000 times liquid aphid, harmless to the bee. Chinese cabbage seeds yield is higher, the higher the inspectional it has, the purity is, the better.
Five, mechanical mixed to put an end to
In different varieties of seed harvesting, drying, threshing, bagging, screening, packaging and stored in the process of mechanical mixed carefully, bulk seed pockets inside and outside should have labels, indicating the name of varieties, origin, date, head, etc., in case of error.
peanut kernel, white garlic, frozen
fruits&vegetables, China, manufacturer, supplier, exporter