Saturday, February 16, 2013

Ipomoea nil seeds

Ipomoea nil seeds by Gerris2
Ipomoea nil seeds, a photo by Gerris2 on Flickr.

Via Flickr:
Notice the seed coat is cracked in many areas after the seed imbibes water and swells to double or larger in size. Two seeds began imbibation without my nicking the seed coat. I had to nick the other two seeds with a sharp knife to let water into the seed to facilitate germination process.