Protection of genetic material is the most important thing in let production of seeds. As our contract farmers and growers have been working with us for several years, they well understand the principles of genetic ownership and anyone who goes against the protection of genetic material will be expelled from the seed production group. Meanwhile, contract seed production under customers’ demand is the sole business of Topsource & Jiuzhou, we don’t sell any seeds except those surplus of over-production with customers’ consent.

For that hybrid F1 seed production, we usually plant male line seedlings in our own plastic house while those of female line in grower’s field. Currently we are studying some new genetic protection method like cryo-pollen hybrid seed production, which adopts cryopreservation of pollen.