Login

Join for Free!
118868 members


is this the radicle or plumule for a dwarf bean?(pic inside)

Plants!

Moderator: BioTeam

is this the radicle or plumule for a dwarf bean?(pic inside)

Postby MohammedA » Wed Sep 30, 2009 2:34 pm

hi everyone. i am currently growing seeds for a germination practical and we are meant to record the length of the plumule and radicle. however, i cannot distinguish between the plumule/radicle with the current seeds i am growing. i read somewhere that the radicle is meant to emerge first...

Image
sorry for the poor sketch, but there's not much more to it than this. is this the plumule or radicle? can anyone confirm whether the radicle ALWAYS emerges first?

-Mohammed
MohammedA
Garter
Garter
 
Posts: 1
Joined: Wed Sep 30, 2009 2:30 pm

Postby JackBean » Fri Oct 02, 2009 10:29 am

in accordance to my experience with maize, yes, I think, the radicle emerges always first. Sometimes, it's already quite long, while the plumule didn't emerge yet.
http://www.biolib.cz/en/main/

Cis or trans? That's what matters.
User avatar
JackBean
Inland Taipan
Inland Taipan
 
Posts: 5689
Joined: Mon Sep 14, 2009 7:12 pm

Postby anjalik » Sat Oct 03, 2009 11:51 am

Radicle will be white in colour and you can observe root hairs even with a hand lens. It will try to grow towards gravity. Perpendicular to it, plumule will emerge and soon turn green (if you are exposing it to light).

BTW, which seeds have you planted? From your fig. they look like beans.
anjalik
Garter
Garter
 
Posts: 3
Joined: Tue Sep 22, 2009 12:53 pm


Postby JackBean » Sat Oct 03, 2009 12:26 pm

he planted dwarf bean ;) It's in the topic ;) :-D

Actually, if will you expose whole seed to light, also the root will turn in green a little bit ;)
http://www.biolib.cz/en/main/

Cis or trans? That's what matters.
User avatar
JackBean
Inland Taipan
Inland Taipan
 
Posts: 5689
Joined: Mon Sep 14, 2009 7:12 pm

Postby Dong » Wed Dec 23, 2009 11:18 am

I do not think the root will turn green even if the whole seed is exposed to light
Dong
Garter
Garter
 
Posts: 7
Joined: Wed Dec 23, 2009 10:34 am

Postby JackBean » Wed Dec 23, 2009 12:43 pm

I don't think so either, I know that, because I have planted maize seeds several times at different conditions
http://www.biolib.cz/en/main/

Cis or trans? That's what matters.
User avatar
JackBean
Inland Taipan
Inland Taipan
 
Posts: 5689
Joined: Mon Sep 14, 2009 7:12 pm

Postby EronJonson » Fri Feb 26, 2010 2:15 am

Yeah, the root would never photosynthesis, unless maybe it was an epipyhtic plant such as a few genera of orchid. Otherwise the root would die of high levels of oxygen and sunlight.
EronJonson
Garter
Garter
 
Posts: 3
Joined: Fri Feb 26, 2010 2:02 am

Postby JackBean » Fri Feb 26, 2010 6:52 pm

yeah, I'm not saying, it will photosynthesize, I'm saying, that iw will not be white when grown on light
http://www.biolib.cz/en/main/

Cis or trans? That's what matters.
User avatar
JackBean
Inland Taipan
Inland Taipan
 
Posts: 5689
Joined: Mon Sep 14, 2009 7:12 pm

Postby Blacky11 » Mon Aug 01, 2011 10:06 am

the only thing i can say foe sure that the radicle emerges always first
Blacky11
Garter
Garter
 
Posts: 3
Joined: Mon Aug 01, 2011 9:57 am


Return to Botany Discussion

Who is online

Users browsing this forum: No registered users and 1 guest