What's your question? Ask

Hyacinth Plant

Q.yellowing of indeterminate greenhouse tomatoes

Anonymous added on June 26, 2015 | Answered

Yellowing of indeterminate greenhouse tomatoes immediately after being lowered, irrigated hydroponically in cocopit media. We are using an indeterminate tomato variety FA593 and achieving very good results. At the Glen valley horticulture incubator in Gaborone, Botswana, we planted it in November 2011 in tunnels, greenhouses and net houses and the result was:

A very good crop stand. Tolerant to most pests and disease. Very good fruits, in size, number per truss and shape, but just before ripening, 80% of the fruit will started cracking. Water source we are using is treated sewage water. We use the ultra-filtration treatment plant, which does reverse osmosis in treatment, and we also dose nitric acid and sulphuric acid to lower the pH, which usually stands at 14, before treatment. Type of irrigation system: Hydroponics Growing media cocopit/coir in sausage bags. We are also experiencing yellowing of abellus variety immediately after lowering the plants, and during this stage it aborts flowers and will improve after 3 weeks or so.

Please advise. Thank you,
Bettie Francis Technology coach Glenvalley incubator

A.Answers to this queston: Add Answer
Downtoearthdigs

Log in or sign up to help answer this question.

Did you find this helpful? Share it with your friends!

You must be logged into your account to answer a question.

If you don't have an account sign up for an account now.

Looking for more?
here are more questions about...
Hyacinth Plant
Join Us - Sign up to get all the latest gardening tips!

Do you know a lot about gardening?
Become a GKH Gardening Expert

OK