Talk:Wheat/Draft

Problems to solve

Fixed Edit link on template. Now points to CZ. Derek Harkness 05:10, 26 December 2006 (CST) Thanks Derek David Tribe 04:54, 27 December 2006 (CST)

Image needed in Cereals links table template at end : currently shows code garbage

Stages of growth photos are incomplete

Need to go over Euro costings to verify validity or delete it

David Tribe 04:55, 27 December 2006 (CST)

Replaced Euro cost with sourced US ERS 2002 cost data. David Tribe 19:59, 28 December 2006 (CST)

A major content weakness still is the section on wheat diseases, and the wiki linked article is not readable either

David Tribe 20:58, 2 January 2007 (CST)

A number of grammar, spelling and syntax errors corrected as minor edits on 3 Jan 2007.

The following are comments that seem to need further input from others with appropriate expertise:

With population growth rates falling, while yields continue to rise, the acreage devoted to wheat may now begin to decline for the first time in modern human history.[13][10]

Is there empirical evidence that total global population growth rates are falling such that the comment can fairly be substantiated?

Genes for the dwarfing trait, which changes plant stature, have had a huge effect on wheat yields world-wide and were major factors in the success of the Green revolution in Mexico and Asia. By 1997, 81% of the developing world was planted to semidwarf wheats, giving both increased yields and better response to nitrogenous fertilizer.

The problem called 'lodging' in taller varieties may merit a mention. 'Lodging' is when a ear stalk bends, or breaks (usually under adverse weather conditions) and does not recover to the vertical position for the seed head to mature.

Pests. Wheat is used as a food plant by the larvae of some Lepidoptera species including The Flame, Rustic Shoulder-knot, Setaceous Hebrew Character and Turnip Moth.

Should storage pests be included here? E.g. Indian meal moth, grain weevil?

Soft White — Soft, light colored, very low protein wheat grown in temperate moist areas. Used for pie crusts and pastry. Pastry flour, for example, is sometimes made from soft white winter wheat.

The last two sentences appear to contain a redundancy, but I was hesitant to edit it.

--Perry Spiller 02:51, 3 January 2007 (CST)

I believe the following sentence(s) needs reworking:

"mutant forms with tough ears which remained attached to the ear"  (in the History section) Pedro Silva 04:27, 3 January 2007 (CST)

Comments

Not convinced that this is ready for approval yet. Did a bit of fact checking - the Fertile Crescent isn't really southwest Asia - in particular it includes Egypt. The origins of cultivation according to Diamond are 8500 BCE not 10,000 BCE (using BCE not B.P. ?). Some of the statements appear to be specific to the USA, but not clear that this was so. 81% of the developing world is planted with wheat? really can't believe this is true. What about GM varieties? Pests aren't really covered - think that rats mice and bird damage might be mentioned. The origins of cultivation are clearly very interesting but not covered convincingly - what is the evidence exactly? The style is a bit of a hybrid, jumping between genetic technicalities and simple, lay accounts. Would have liked to see pictures of modern wheats compared with wild forms.Gareth Leng 06:26, 3 January 2007 (CST)

Reading through, and although I am in no position to check the botanical or agricultural accuracy, I think it's well written and informative in style. There is a sentence: "Commercial hybrid wheat seed has been produced using chemical hybridizing agents; these chemicals selectively interfere with pollen development, or naturally occurring cytoplasmic male sterility systems." Are there chemicals that promote naturally occurring cytoplasmic male sterility systems? " If so, I think you should put that word in, if not, I don't understand the sentence. Will go back and keep reading. Nancy Sculerati MD 08:19, 3 January 2007 (CST)

Made various edits. I separated Nile Delta and Fertile Crescent. Frankly, I think equatorial (and there abouts) Africa always gets the short shrift, but there is no historical record to prove it. In the US, the lack of history outside of the desert regions of Africa has been classically used to taunt people of African descent as to their lack of civilized where with all, and yet, from everything I've read, even in the Nile Delta area, there is nothing to record what went on except in those desert tombs that were isolated and hidden in a favorable climate for preservation. Meaning, that it seems reasonable that people of the warmer and more humid climates of Africa, where it seems we existed for exponentially many generations before getting elsewhere, likely did a lot of the "firsts". But if there is no record of even the villages that existed along the Northern Nile, only what got squirreled away in stone buried in desert sands, that there is no way that cultures along, say, the Niger River, or the other end of the Nile, have a "historical record". Anyway, I personally think it's enough to generally indicate where the historical record of wheat/grass agriculture starts without worrying about dilineating beween one desert nation and the next. Here's another sentence I don't understand: "For example, the meïosis stage is very susceptible to low temperatures (below 4°C) or high temperatures (above 25°C)." What is the meiosis stage of wheat? I think the article is quite close to approval. Perhaps Chris Day, who is a botanist, might look at it. I'll "talk" to him. Nancy Sculerati MD 09:00, 3 January 2007 (CST)