Thursday, July 2, 2009

Always growing!

Got some nice examples of guttation here. Guttation is the technical term to describe when droplets of water, technically xylem sap, form on the edges of leaves. This phenomenon occurs in the early morning when soil moisture levels are high. It is caused by high root pressure - since the water potential of the roots is less then that of the soil solution, water flows into the roots by means of osmosis. At night, plants close their stomata and transpiration does not occur, as a result water pressure builds up in the plant. The excess water pressure in the plant is released by hydathodes, water secreting pores found at the edges of leaves.
note water droplet on tomato leaf margin, this is not a rain drop!
Guttation on a tomato leaf (Aunt Gertie's Gold Heirloom variety)
Guttation on tomato leaf






SunSugar FT hybrid

Zapotec

Aunt Gertie's Gold

Dr. Wyche's Yellow
Azoychka - A very productive yellow/orange Russian heirloom


Boxcar Willie
Oaxacan Jewel (bicolor red and yellow) (WA-HA-CAN)

SuperSweet 100 Hybrid cherry tomato


Sprite determinate grape tomato variety (so I have not pruned the axillary shoots)

Green Goliath Broccoli, open-pollinated, non-hybrid seed
Guttation on broccoli leaf
Guttation on broccoli leaf

Guttation on broccoli leaf
Guttation on broccoli leaf
Tomato bins!
Bulgarian Triumph


SunSugar FT hybrid orange cherry tomato

Flamme (orange saladette tomato heirloom from France)
Tangella (orange saladette tomato heirloom from England)

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