Search found 2921 matches

by IanW
Mon Mar 06, 2017 1:47 pm
Forum: The Cactus & Succulent Plant Forum
Topic: BCSS Website - have your say
Replies: 50
Views: 14949

Re: BCSS Website - have your say

It is indeed Pedalo Phil and no its not a minor upgrade, some website content plus forum and gallery content is about the only thing that is guaranteed to survive. The whole platform will probably be Wordpress based, easy to use, easy to update and very configurable. ...and rife with security issue...
by IanW
Thu Feb 09, 2017 12:44 pm
Forum: The Cactus & Succulent Plant Forum
Topic: Buying tropical cacti
Replies: 6
Views: 2726

Re: Buying tropical cacti

Have had nothing but excellent quality plants off of them.
by IanW
Wed Jan 18, 2017 12:28 pm
Forum: The Cactus & Succulent Plant Forum
Topic: Seed Quality - Inbred Cacti?
Replies: 26
Views: 8089

Re: Seed Quality - Inbred Cacti?

At last we have got to the point of this thread! IanW has subjected the reader to a lot of grumbling about authority, but finally writes about the central issue here. Whilst we are (inevitably) inbreeding many of our c&s, inbreeding depression is not much in evidence. I'm not sure why you're in...
by IanW
Tue Jan 17, 2017 2:21 pm
Forum: The Cactus & Succulent Plant Forum
Topic: Seed Quality - Inbred Cacti?
Replies: 26
Views: 8089

Re: Seed Quality - Inbred Cacti?

IanW, from your last two paragraphs, you appear to be doubting the existence of inbreeding depression, re-interpreting the results as evolution - a very different set of processes. The example with maize that I quoted, Jones (1924), is from a modern botany textbook (Briggs and Walters, Plant Variat...
by IanW
Mon Jan 16, 2017 9:16 pm
Forum: The Cactus & Succulent Plant Forum
Topic: Seed Quality - Inbred Cacti?
Replies: 26
Views: 8089

Re: Seed Quality - Inbred Cacti?

Another important issue is the conservation implications of genetic 'drift' for taxa in cultivation (or in captivity for animals). As few as five generations or crossing cutuivated plants (or captive animals) from original wild origins has been shown to produce such genetic change as to render stoc...
by IanW
Sun Nov 27, 2016 9:16 am
Forum: The Cactus & Succulent Plant Forum
Topic: Digitostigma
Replies: 9
Views: 3398

Re: Digitostigma

It's also possible that one or both parents have simply not been discovered yet. What may await us...
by IanW
Thu Nov 24, 2016 3:43 pm
Forum: The Cactus & Succulent Plant Forum
Topic: CactiGuide
Replies: 75
Views: 24168

Re: CactiGuide

Quite possibly, but either way it's pretty clear that the spelling excentric of eccentric is all but dead in modern usage.
by IanW
Thu Nov 24, 2016 2:14 pm
Forum: The Cactus & Succulent Plant Forum
Topic: CactiGuide
Replies: 75
Views: 24168

Re: CactiGuide

Ali Baba wrote:Sorry Ian but you are quite incorrect, both spellings appear in Chambers and the OED
Yes, but meaning something completely different to "eccentric", which would seem to be a rather important thing to check:

https://en.oxforddictionaries.com/definition/excentric
by IanW
Thu Nov 24, 2016 10:43 am
Forum: The Cactus & Succulent Plant Forum
Topic: CactiGuide
Replies: 75
Views: 24168

Re: CactiGuide

Regarding excentric see the link below. "Alternative form of eccentric." https://en.wiktionary.org/wiki/excentric A Wiki that can be edited by anyone and that cites it's source as a single 1913 dictionary, vs. every other modern dictionary in the world (including the more modern version o...
by IanW
Thu Nov 24, 2016 8:04 am
Forum: The Cactus & Succulent Plant Forum
Topic: Astrophytums caput med. Advice please
Replies: 20
Views: 5915

Re: Astrophytums caput med. Advice please

I agree with Tina, I've tried and failed growing this species from seed a number of times (though am now succeeding) and find that the biggest problem with them when young is simply that they don't have the water retention of other species - their long thin spindly arms dry out easily, and their tap...