Return to the Beans, Peas & Other Legumes Forum | Post a Follow-Up

Question about crossing/mutation

Posted by aftermidnight Z8 V. Island B.C. (My Page) on
Wed, Jun 2, 10 at 14:08

When a crossing occurs is it normal to find all the beans in a pod the same or can it be only one bean. In a mutation will all the beans look alike in the pod?


Follow-Up Postings:

RE: Question about crossing/mutation

When a bean crosses because of bee activity, it is normal for 1 or more beans in a single pod to be pollinated by foreign pollen. Usually, the cross will be undetectable at the seed stage though in a few instances the seed coat will be a different color.

The best way to detect a cross is when the seed are grown out and you find either an unusual vine color or other traits such as flower color that do not match the parent.

I have Striped Bunch beans growing in my garden with about 300 plants in a row 120 feet long. There are 3 plants with purple stems indicating crossing when I grew those seed. Striped Bunch has very unusual runners so it is easy to walk down the row and pick out the odd plants.


RE: Question about crossing/mutation

A few years back I found one odd colored bean in a pod of Mr. Tung beans, the only other bean I grew then were my italians. Although these beans were grown about 20 feet apart with a greenhouse in between a bee must have found it's way from one to the other.
Mr. Tung beans are a dark beige in color, the italians are beige with purple swirls, the oddball is more pink than beige and a slightly bigger and a different shape, fatter. I've never had this happen before or since.
Here's a picture of Mr. Tung with the oddball. I just might try to grow it, see what it produces.

 o Post a Follow-Up

Please Note: Only registered members are able to post messages to this forum.

    If you are a member, please log in.

    If you aren't yet a member, join now!

Return to the Beans, Peas & Other Legumes Forum

Information about Posting

  • You must be logged in to post a message. Once you are logged in, a posting window will appear at the bottom of the messages. If you are not a member, please register for an account.
  • Please review our Rules of Play before posting.
  • Posting is a two-step process. Once you have composed your message, you will be taken to the preview page. You will then have a chance to review your post, make changes and upload photos.
  • After posting your message, you may need to refresh the forum page in order to see it.
  • Before posting copyrighted material, please read about Copyright and Fair Use.
  • We have a strict no-advertising policy!
  • If you would like to practice posting or uploading photos, please visit our Test forum.
  • If you need assistance, please Contact Us and we will be happy to help.

Learn more about in-text links on this page here