I have mainly very short customer review comments. Shall I only publish longer ones?

[lcourse]

Our customer reviews of products are mainly very short and many times not fully formulated sentences.

Would you recommend to just publish the longer comments?

I am concerned about googles evaluation of the quality of the page content.

[Bigb06]

You may add some questions or suggestions before the textarea in order to help users to post longer reviews :
what you love? on the contrary, what has displeased you? Would you recommend the site / product to a friend? Have you been satisfied with the packaging, delivery ...

[Mustansar]

Yes, you're right but when you say short are they just based on few words. I am sure Google would also consider the proporation of each side thin and the details ones.
If most of reviews are just few words, off course you dont want to publish them before even it reach to google not only for Google but for your impression. As these mostly be consider as self created reviews.
I would say be a selective in this regards. Mixture can work

[lcourse]

they are all genuine. but due to way it was asked answers are mainyl very short.

I remember back when searchengineland.com was hit by panda, that John Mueller mentioned that short comments could be considered by google as not too useful.

[Mustansar]

Hi

I think, it does not matter as long as reviews are from customer and genuine ones. I reckon do not publish by yourself, ask your customer if they are happy with your service to leave reviews for yourselves. 
In the case of reviews posting from same IP can or system can potentially raise red flag for your business and Google may can remove your reviews.
Read the here for further guidelines