Since you say "for now", that implies you plan to eventually add the others. There are some I'm curious about, though:
1. Oilberries - afaik, there is no simple "oil" in IC2, so how will this crop work? or did you grab the textures for this by mistake and they won't really be implemented?
2. Argentia, Coppon, Plumbilia, Tine - these are redundant now, so I'm somewhat confused that you added the textures for them.
3. GT 5.09 crops - many of them involve materials that don't exist in IC2 (e.g. zinc, nickel, thorium), but what about the few that do involve materials provided by IC2 or vanilla Minecraft (e.g. glowstone, nether quartz, uranium, nether star, iridium)? is there any chance you'd be willing to add some of those?
BTW, apparently withereed was a bad example for a "resource crop" (I play in peaceful, so I had forgotten about wither skeletons sometimes dropping coal, but I guess that's where the crop gets its name from)