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WordPress Seo Integration is a plugin to integrate the WordPress SEO plugin by Yoast plugin and mqTranslate (a fork of qtranslate) 
to manage the meta fields and sitemaps in a website with different languages.
The plugin is an Alpha version and only has the next features:
<ul>
<li>Administration panel to manage the meta fields filtered by language. The plugin make use of the WordPress SEO functions to measure the 
quality of SEO of every post in the website.></li>
<li>Build a sitemap with languages. the plugin build a sitemap from the type of post and from the language. For example, it builds an 
xml sitemap called page-es and other called page-en.</li>
</ul>
<h3>Arbitrary section</h3>

Integration of Yoast wordpress SEO module with mqtranslate module

Integration between the popular Wordpress SEO module by Yoast and mqtranslate plugin (a fork of qtranslate that is updated).

Manos (a11n)

Important: WooCommerce-qTML is no longer developed and supported, since qTranslate and mqTranslate are no longer active. Both plugins have been deprecated and merged into <a href="https://wordpress.org/plugins/qtranslate-x/" rel="ugc">qTranslate-X</a>, which aims to provide full WooCommerce support out of the box.
WooCommerce-qTML:
<ol>
<li>Ensures that (m)qTranslate will retain the selected language when moving between WooCommerce products, pages and endpoints.</li>
<li>Prevents switching to the default language in many cases of redirection (after posting product reviews, when returning to the shop after paying/cancelling an order, etc).</li>
<li>Adds qTranslate shortcode support to: product attributes, product category names and descriptions, tax descriptions, payment gateways, shipping methods.</li>
<li>Supports localized e-mail notifications for new orders, order status updates, new order notes and invoices by storing the active language every time an order is placed.</li>
</ol>
WooCommerce-qTML is provided with the following limitations:
<ul>
<li>As expected, WooCommerce-qTML helps keep the front-end of your shop properly localized. However, depending on your theme and installed WooCommerce extensions, certain strings or parts of your website might not be translated as expected.</li>
<li>The admin area is not streamlined for multilingual input. No separate input boxes exist for multilingual input – instead, WooCommerce categories & attributes must be entered using (m)qTranslate tags/shortcodes, e.g. [:en]Color[:de]Farbe].</li>
<li>Support for localized customer e-mails is included since version 1.0.0. However, extensions and 3rd party plugins that add content to e-mail notifications might not work out of the box. If you need assistance with a particular WooCommerce extension, please contact us for a quote.</li>
<li>qTranslate does not include proper support for HTTPS/protocol-less URLs. If you have an SSL certificate installed and want to use HTTPS in your WooCommerce store, you will need to tweak qTranslate in order to support viewing checkout/account pages securely.</li>
<li>WooCommerce-qTML is only recommended for use by developers, since, in most cases, customizations need to be made according to the needs of each project. The plugin is a good head-start that will save developers a few hours of research – it is not a complete multi-language solution!</li>
</ul>
Always use the plugin with the latest versions of WooCommerce/Wordress/(m)qTranslate. Using the plugin with older/newer versions of WooCommerce/WordPress/(m)qTranslate is not recommended, since new versions always introduce changes that may break the translation of a few strings, or, in extreme cases, even entire pages. You can always give it a shot and see if another combination works for you. However, we strongly encourage you to:
<ol>
<li>Always backup your entire website before updating WooCommerce or WordPress.</li>
<li>Check that a new version of WooCommerce-qTML exists before updating WC or WP and verify that the version you are upgrading to is supported.</li>
</ol>
WooCommerce-qTML will be updated as long as (m)qTranslate and WooCommerce are active and maintained.
Developers can checkout and contribute to the source code on the plugin’s <a href="https://github.com/franticpsyx/woocommerce-qtml/" rel="nofollow ugc">GitHub Repository</a>.

WooCommerce qTML

Add (m)qTranslate support to WooCommerce.

Integration of Yoast wordpress SEO module with mqtranslate module vs WooCommerce qTML