Purfresh of Fremont, Calif., has introduced its next generation of ultraviolet-protectants for plants, PurShade Ultra.

Registrations are pending in several states, including California.

The product contains a specially formulated form of calcium carbonate, which reflects a broad spectrum of UV light, including UV-B, according to a news release.

In trials, it increased yields by 8 percent to 45 percent, according to the release.

Research by Two Bee's Agricultural Research and Consulting in Manteca, Calif., examined use of the product on cabernet sauvignon grapes, Granny Smith apples and processing tomatoes.

The protectant decreased sunburn on fruit and foliage, and increased biomass and other quality characteristics, including fruit color and Brix, according to the release.

It can be easily washed off during packing.