View Full Version : Petioles
john_ny
08-31-2012, 04:24 AM
Recently someone, in the main banana discussion, posted some good pictures showing the difference between sword and water pups.
Could someone post similar clear pictures, showing the different types of petioles? (winged, closed, etc.)
These are just examples and are not guaranteed to be typical of all plants of these varieties, but this is what I have. Hope this helps.
Saba - mostly closed
<a href=http://www.bananas.org/gallery/showphoto.php?photo=50341><img src=http://www.bananas.org/gallery/watermark.php?file=50341&size=1 border=0></a>
Gros Michel - open
<a href=http://www.bananas.org/gallery/showphoto.php?photo=50342><img src=http://www.bananas.org/gallery/watermark.php?file=50342&size=1 border=0></a>
Bungulan - open
<a href=http://www.bananas.org/gallery/showphoto.php?photo=50343><img src=http://www.bananas.org/gallery/watermark.php?file=50343&size=1 border=0></a>
Williams - open
<a href=http://www.bananas.org/gallery/showphoto.php?photo=50345><img src=http://www.bananas.org/gallery/watermark.php?file=50345&size=1 border=0></a>
Super Dwarf Cavendish - open
<a href=http://www.bananas.org/gallery/showphoto.php?photo=50346><img src=http://www.bananas.org/gallery/watermark.php?file=50346&size=1 border=0></a>
Dwarf Namwah - closed
<a href=http://www.bananas.org/gallery/showphoto.php?photo=50347><img src=http://www.bananas.org/gallery/watermark.php?file=50347&size=1 border=0></a>
Dwarf Brazilian - in between
<a href=http://www.bananas.org/gallery/showphoto.php?photo=50348><img src=http://www.bananas.org/gallery/watermark.php?file=50348&size=1 border=0></a>
Dwarf Red - mostly closed
<a href=http://www.bananas.org/gallery/showphoto.php?photo=50350><img src=http://www.bananas.org/gallery/watermark.php?file=50350&size=1 border=0></a>
Hua Moa - mostly closed
<a href=http://www.bananas.org/gallery/showphoto.php?photo=50351><img src=http://www.bananas.org/gallery/watermark.php?file=50351&size=1 border=0></a>
Manai Ula - mostly closed
<a href=http://www.bananas.org/gallery/showphoto.php?photo=50349><img src=http://www.bananas.org/gallery/watermark.php?file=50349&size=1 border=0></a>
Manzano - mostly closed
<a href=http://www.bananas.org/gallery/showphoto.php?photo=46097><img src=http://www.bananas.org/gallery/watermark.php?file=46097&size=1 border=0></a>
alias
09-01-2012, 09:41 AM
Ice Cream- mostly closed :D
venturabananas
09-01-2012, 10:11 AM
Note that the extent to which the petiole is open or closed can change with the age of a plant. A good example is the photo of the dwarf red that Yug posted. That photo shows a young plant and the petioles are fairly closed. In a mature dwarf red, they would be wide open. That's why people studying bananas record traits like petiole canal type only on certain leaves (3rd leaf from the top) on mature plants.
robguz24
09-01-2012, 03:36 PM
Note that the extent to which the petiole is open or closed can change with the age of a plant. A good example is the photo of the dwarf red that Yug posted. That photo shows a young plant and the petioles are fairly closed. In a mature dwarf red, they would be wide open. That's why people studying bananas record traits like petiole canal type only on certain leaves (3rd leaf from the top) on mature plants.
That's interesting and good to know. I was wondering because they are quite open on my dwarf red, which I thought had to do with them being AAA.
venturabananas
09-01-2012, 07:54 PM
I was wondering because they are quite open on my dwarf red, which I thought had to do with them being AAA.
That's exactly right Rob -- look for wide open petioles on mature banana plants with only A genes.
caliboy1994
09-01-2012, 11:30 PM
I noticed something very interesting on my Ice Cream (which is probably not). During the midday, the petioles open up a bit, and then they close at night. By the morning, they are fully closed, and then they slowly open up as the day goes on.
Note that the extent to which the petiole is open or closed can change with the age of a plant. A good example is the photo of the dwarf red that Yug posted. That photo shows a young plant and the petioles are fairly closed. In a mature dwarf red, they would be wide open. That's why people studying bananas record traits like petiole canal type only on certain leaves (3rd leaf from the top) on mature plants.
On my dwarf Red, I used a picture of the petioles on the largest pup because the top of the main plant is to high to reach, and the leaves are very close together. I can't see it or reach it so I was guessing what it must look like.
2woodensticks
09-03-2012, 11:24 AM
great bit of info..thanks so much
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