Rice Seeds

Table 1 Shoot and root length of a dicot and a monocot seedling Shoot Length (cm)| Root length (cm)| | 1| 2| 3| 4| 5| Average| 1| 2| 3| 4| 5| Average| Day 1| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| Day 2| 0| 0| 0| 0| 0| 0| 1. 1| 1. 0| 1. 2| 1. 0| 0| 0. 86| Day 3| 1| 0. 5| 1| 1| 1| 0. 9| 2| 2| 2| 2| 2. 1| 2. 02| Day 4| 1. 2| 1| 1| 1. 1| 1| 1. 6| 2. 5| 2. 5| 3| 3| 2. 5| 2. 7| Day 5| 2. 1| 2| 1. 3| 2| 1. 3| 1. 74| 3| 3. 1| 3. 2| 3. 2| 3| 3. 1| Day 6| 2. 1| 2. 1| 2. 1| 2. 1| 2. 1| 2. 1| 5| 3. 5| 4| 3| 5| 4. 1| Day 7| 2. 5| 2. 5| 2. 2| 2. 5| 2. 5| 2. 44| 5. 5| 4. 5| 5| 5| 5| 5|Table 2 Breaking dormancy of Leucaena leucophala seeds Treatment| % Germination| | R E P L I C A T I O N| | 1| 2| Average| Rubbing on sandpaper| 0%| 0%| 0%| Clipping| 0%| 1%| 0. 5%| Soaking in hot water (50 degrees Celcius)| 0%| 0%| 0%| Control| 6%| 0%| 3| The experiment has shown that by clipping the seeds perhaps germination of the seed can be attain. Rubbing the seed with sandpaper can break the dormancy as well as i t can also break and kill the seed. Soaking the seeds in hot water can also break the hardness of the coat of the seed thus can also kill the developing parts of the seeds of the plant.Clipping can be considered as an effective way of breaking the dormancy of the seed thus in some unexpected ways or inaccurate work, the seeds may be damaged and may not germinate. Table 3. 1 Effect of initial moisture content on the storability of rice seeds I. Effect of initial moisture content on the storability of rice seeds Treatment| % Germination| | R E P L I C A T I O N| | 1| 2| Average| | After 3 days| After 7 days| After 3 days| After 7 days| | 11% moisture content| 12%| | 12%| | 16%| 20% moisture content| 0%| 16%| 0%| 12%| 14%|The results have shown that the rice seed treated with 11% moisture content have higher percent of germination as compared with the rice seed treated with 20% moisture content. Rice seeds are known to be an orthodox type of seeds. Orthodox type of seeds are seeds whic h are needed to be stored with low moisture content under conditions at low temperature and low humidity. This means that in order to attain and make the seeds germinate these seeds must be maintained at low moisture content. Table 3. 2 Storability of recalcitrant seeds Treatment| % Germination after one week| Freshly extracted| 80%|Stored for one week| 0%| The results have shown that the cacao seeds which are freshly extracted have higher percent of germination as compared with the cacao seeds stored for one week. Cacao seeds are known to be recalcitrant type of seeds. This means that this type of seeds should have been planted after they are extracted. These seeds should not be stored long to attain a high percent of germination. Since the seeds are stored for seven days or one week the seeds will no longer germinate because it has already dried up and this type of seed must be stored without reduction in their moisture.