The latest Identification method of fake and inferior Hybrid Rice Seeds

Look at uniformity

Hybrid rice mixed with other grains has irregular grain shape. The mixed male parent or other indica rice seeds are obviously thinner and fuller than hybrid rice seeds, while japonica rice grains are more round.

See the hull color

Hybrid rice seed hull slightly uneven yellow brown and other physiological variegated, but the male parent, maintainer line grain color is more consistent, maintainer line and other mixed grain than hybrid rice seed transparency, hull than hybrid rice seed smooth.

Look at the stigma marks.

Non-hybrid rice grains are mostly self-pollinated, pistil stigma is not exposed, stigma traces are left in the hull, and a light black stigma trace can be seen at the top of the grain when the hull is peeled off. The hybrid species belong to cross-pollination, stigma exposed, carefully observed in the middle of the lemma crevice, you can find a small black dot that is not very obvious stigma trace, which is an important basis for identifying hybrid rice seeds and other rice grains.

see staining assay

The method is that the rice hull is cut into two halves from the embryo, half of each grain is washed and immersed in red ink diluted to 60 times, and after 1 hour, it is taken out and washed with clean water. If the embryo is not dyed or dyed lightly, it proves that the seed has vitality; if the dyeing is deeper, it proves that the seed has lost vitality. In this way, deteriorated seeds that do not germinate in hybrid seeds can be identified.

Look at seed purity.

With a hand-held seed, palm fingers between solid particles such as soil particles, sand and other impurities, fingers stained with fine powder, proof of seed purity can not reach the national standards (99%).

Look at the seed moisture content.

A simple method is to bite the grain with teeth. If there is a sharp sound, the water content is basically normal; if there is no sharp sound or the grain section is not neat, the seed water content is generally higher than the normal standard (11,5%).

Look at the seed "three certificates"

All seeds with seed management license, quality certificate and pest quarantine certificate of plant protection department are high-quality hybrid rice seeds. Otherwise, it is a fake hybrid rice seed.