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zoom RSS You Can Prevent Blossom End Rot (BER) on Tomatoes

<<   作成日時 : 2013/09/04 19:36   >>

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 HOW TO PREVENT BLOSSOM END ROT on TOMATOES 

1. Supply calcium to soil.
 
2. Across the stem, pick off the leaf on the other side of the blossoms.
 
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That's all there is to it.  
You can prevent blossom end rot (BER) on tomatoes in this way.
This is not a spell.

 WHY IT IS POSSIBLE ? 

Fruit of the tomato does not originally have to absorb much calcium,
and the upper part of the tomato has the structure of a barrier disturbing movement of calcium.
On the other hand,the tomato leaves continues to absorb and store more calcium than it needs.

The biggest problem is that calcium which all leaves absorbed is hardly supplied to the fruit of the tomato.This is knowledge demonstrated by researchers.
This is one of the reasons why the tomato causes blossom end rot by a condition though abundant calcium in the soil.

Therefore it may be said that we can increase quantity of calcium supplied to the fruit of the tomato if we reduce the number of leaves of the tree tomato properly.

 WHICH LEAF SHOULD BE PICKED OFF ? 

A tomato tree will grow by forming units consisting of three pieces of leaves and one flower bud one after another.
I describe the function of three pieces of leaves as follows.

【breakdown of three pieces of leaves】

A-LEAF 〜 the leaf which is located in the right side of the flowering sprout
B-LEAF 〜 the leaf which is located in the left side of the flowering sprout
C-LEAF 〜 the leaf which is located in the other side of the flowering sprout
           ※ Flowering sprout means flower bud or blossom or fruit.
              I do not know which expression is the most appropriate.

A-LEAF is connected to the fruits which are in the right side through a conduit.
B-LEAF is connected to the fruits which are in the left side through a conduit.
Products of photosynthesis produced in A-LEAF and B-LEAF are transferred to the fruit .

However C-LEAF is not connected to any fruit through a conduit and has very little connection with the development of the fruit.

That is to say, we can increase quantity of calcium supplied to the fruit of the tomato by cutting C-LEAF without adversely affecting to the ripening fruit.

 IS FOLIAR SPRAYS of CALCIUM EFFECTIVE ? 

Is foliar sprays of calcium effective to prevent blossom end rot ?
The conclusion is that it is ineffective because calcium is not remobilized from the leaves to the fruits , as I described above.
However, Kazuhiko Watanabe, Doctor of Agriculture detected that calcium supplied to the epidermis of the fruit is moved to the inside of the fruit in 1998.
Therefore, the best way of foliar application of calcium for preventing blossom end rot is to spray on the fruit.
It is more effective when the fruit is younger because blossom end rot often occurs in the young developing fruit.

 ABOUT ME 

I am a home vegetable gardener in Japan and I love growing tree tomatoes most.
When I encountered  BER  for the first time, it felt like I was retaliated against because I made some kind of mischief on my tomatoes.
How did you feel at that time?
I have been picking off the leaves ever since I had known about this way of preventing blossom end rot several years ago.
As a result, I have had a very low incidence of blossom end rot on my tree tomatoes for the past several gardening seasons and I am confident in this manner now.

This manner has not yet spread out very much in Japan , so I launched this blog.
And furthermore , when I googled "prevent blossom end rot tomato",  I couldn't find any page that was written about cutting tomato leaves, so I uploaded this English article.

I hope this article was helpful for you. 


[2014.01.02] 

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