This biomass material is in a continuing state of decomposition, ultimately becoming that semi-stable material called humus.

To somatic colone variation progeny stable material R111 of sorghum recovery line was treated in No. 17 returning satellite in 1996 and its progeny has got excellent new germplasm have been developed.

Part of the trick was to find a suitable photochromic material whose clear and opaque parts would remain stable after the initial exposure to light.