Home |
Search |
Today's Posts |
#5
|
|||
|
|||
Zucchini blossom end rot
"David Hare-Scott" wrote in message "My zuccs have BER!" "As I understand it the problem is due to deficiency of calcium in the plant which can be brought about by uneven water availability or lack of calcium in the soil.". Absent more specifics, I believe that is more SWAG than fact. Consider the chemical distribution of Ca w/in the plant. Most likely your plant's available calcium is being diverted from the fruit & going to the leaves where it is needed more at that particular time, say for transpiration. Ca is not a mobile nutrient, i.e. going where it is best needed. If BER occurs when temps are high, try slowing the plant's transpiration rate to get a better Ca distribution. Note, even if you have adequate soil Ca, its uptake can be limited by other factors such as listed in the Spectrum Analytic article* below . If BER is a constant problem, try the preventive measure outlined in the ISHS abstract ** below. The soil has been amended with lime and gypsum. They are growing strongly with a multitude of flowers and fruit setting. One odd thing is that normally this strikes on the fruit when they are quite small but this time they are getting nearly to cutting size before it starts. I'm curious; did a soil analysis/test indicate you needed the lime and gypsum or is this just a gardening "best practice" method? If you care to share; what type is your soil, pH, amendment regime, fert/schedule, etc.? "Any ideas from experience?" "Any references to a detailed explanation of how BER happens..." Try these: * http://www.spectrumanalytic.com/supp.../Ca_Basics.htm ** http://www.actahort.org/members/show...knrarnr=145_23 http://www.springerlink.com/content/ww87lw2086rj3v71/ http://jxb.oxfordjournals.org/cgi/co...tract/44/2/509 General reads on BER: http://pubs.caes.uga.edu/caespubs/ho...ossom-rot.html http://wihort.uwex.edu/fruitveggies/TomatoDisorders.htm |
Thread Tools | Search this Thread |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Forum | |||
Zucchini blossom end rot | Australia | |||
Zucchini blossom end rot | Australia | |||
rot rot rot | Orchids | |||
tomato "blossom end rot" what to do? (thanks) | Edible Gardening | |||
tomato "blossom end rot" what to do? (long) | Edible Gardening |