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i would be verry glad if u could tell the various stages in the growth of rice with their approximate days after germination

2007-03-10 05:32:31 · 2 answers · asked by charka 1 in Science & Mathematics Botany

2 answers

The growth of the rice plant is divided into three phases:
1. vegetative (germination to panicle initiation);
2. reproductive (panicle initiation to flowering); and
3. ripening (flowering to mature grain)

In the tropics, the reproductive phase is about 35 days and the ripening phase is about 30 days.
* The differences in growth duration are determined by changes in the length of the vegetative phase.
* For example, IR64 which matures in 110 days has a 45-day vegetative phase, whereas IR8 which matures in 130 days has a 65-day vegetative phase.
These 3 growth phases consist of a series of 10 distinct stages. These stages are numbered and described as Stage 0 thru 9.
Stage 0 is from germination to emergence:
Stage 1 is called seedling:
Stage 2, tillering:
and Stage 3 is stem elongation:
These first 4 stages make up the vegetative phase, the first phase of rice plant growth.
Stage 4 is panicle initiation to booting:
Stage 5 is heading or panicle exsertion:
and Stage 6 is flowering:
Stages 4, 5, and 6 constitute the reproductive phase, the second phase of rice growth.
Stage 7 is the milk grain stage:
Stage 8, the dough grain stage:
and Stage 9, the mature grain stage:
Stages 7 through 9 correspond to the ripening phase, the last phase in the development of the rice plant.

2007-03-12 07:04:13 · answer #1 · answered by john h 7 · 0 0

I know it can be harvested w/in 3-6 months and can take up to 3 months to germinate.

What type or species of rice are you trying to grow? There are two methods for growing it-- I'm only familar w/ growing it in ponds or rice paddies.

Here's a link to grow wild rice-- if you want to grow it in a pond or whatnot. They also give some info on the growth of it that might help you. http://www.hort.purdue.edu/newcrop/afcm/wildrice.html

Good Luck!

2007-03-10 15:04:13 · answer #2 · answered by Bio Instructor 4 · 0 0

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