Choosing a cotton cultivar to clone

[edvlmaas]

Hi, I need to create a new cotton cultivar, which I've done following the steps here: #2031

It looks like the default cultivar is S71BR, which I assume is what is being cloned when a new cultivar is created. The name of the new cultivar is "_Default_S71BR", and the cultivar_default parameter is indeed set to "S71BR".

However, S324 is the closest fit (R^2 and RMSE) to my data, so I would like to clone it and just adjust the yield down. I tried to change the default cultivar by changing the cultivar_default parameter value to "S324", which it accepts, but the value under the "default" column still says S71BR. When I create a new cultivar, the name is still "_Default_S71BR", and when I run the simulation with the new cultivar without any changes, the results are the same as S71BR, not S324.

Here is a screenshot:

So is there a way to clone a cultivar other than S71BR?

[peter-devoil]

I'm not 100% up on this part of the GUI, but I think "cultivar_default" is intended to be used by the infrastructure (to generate documentation mainly), not by users. Users select a cultivar (eg S324, S71 etc) to be sown via the sowing component - some manager code that can be responsive to seasonal conditions/paddock history/market prices ...

So I'd ignore it, and concentrate on the sowing manager component

[edvlmaas]

So I can use the sewing component to make a cultivar? My question is how to make a cultivar based on S324. I searched source code to find what parameters are set differently from the S71BR default, but couldn’t find anything. The cotton.xml doesn’t have them.

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On Apr 16, 2023, at 6:28 PM, Peter de Voil ***@***.***> wrote:  I'm not 100% up on this part of the GUI, but I think "cultivar_default" is intended to be used by the infrastructure (to generate documentation mainly), not by users. Users select a cultivar (eg S324, S71 etc) to be sown via the sowing component - some manager code that can be responsive to seasonal conditions/paddock history/market prices ... So I'd ignore it, and concentrate on the sowing manager component — Reply to this email directly, view it on GitHub, or unsubscribe. You are receiving this because you authored the thread.

[peter-devoil]

No, the sowing component selects (instantiates?) a cultivar within a simulation

In the tree display, right clicking on the "cultivars" variable opens a menu "Add", which will duplicate the 1st cultivar. Then change the cultivar's variables accordingly

[edvlmaas]

OK, so how can I recreate the S324? I am wanting to start with that and play with percent_l, scboll, and BckGndRetn.

[peter-devoil]

No idea. You could try asking Michael dot Bange at grdc dot com dot au

[edvlmaas]

I’ll do that. Thank you.

[edvlmaas]

His email bounced back. I emailed apsim at csiro dot au to ask about it and was told "Michael Bange no longer works for GRDC and has moved on to Cotton Seed Distributors" and was given a link with phone numbers. https://csd.net.au/contact However, I'm in the United States and my cell phone plan doesn't allow me to call internationally. Anything else you can suggest?

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On Sun, Apr 16, 2023 at 10:35 PM Ellen Maas ***@***.***> wrote: I’ll do that. Thank you. Sent from my iPhone On Apr 16, 2023, at 10:03 PM, Peter de Voil ***@***.***> wrote:  No idea. You could try asking Michael dot Bange at grdc dot com dot au — Reply to this email directly, view it on GitHub <#2198 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ADTJQ2Q75IAOIIAZJTQYPTDXBSQHNANCNFSM6AAAAAAW7VFJJE> . You are receiving this because you authored the thread.Message ID: ***@***.***>

[peter-devoil]

I'll have a look - he may have retired.

[SaeeTS]

hi @edvlmaas

Could you find out how we can create a new cotton cultivar?