Best Viewed in Mozilla Firefox, Google Chrome
Production Know How
  • RKMP serves the generic information related to rice cultivation in more than 2500 Reusable Learning Objects (RLOs).In other words this information is not context specific and may be useful to extension workers cutting across the states (For example - principles of land levelling).
  • You will appreciate how we tagged different information (content) heads, to make your browsing effortless!
  • You may go through these RLOs using any of the following methods:
    1.  Search for a specific information object by typing a key word/ phrase. You will get to see several related links. By clicking on the links you will be directed to the content page.
    2.  While going through the links, you may feel appropriate to cross navigate to other information related to your search. Then simply, you click on the tags (terms) that appear below. You will be happy to see all the information in a sequence of upload.
    3.  Look for the other related information heads on right side box. Click on any of them to get the access the information.

06
Aug

Equipment for Germination Test

 

Equipments used fir Germination test are

1. Seed germinator.

2. Seed counting equipment.

3. Sand boxes & sand Benches

4. Germination paper/ Filter paper etc.

5. Petri dishes/ Plastic Boxes.

6. Sand or soil sterilizer.

7. Refrigerator, hot air oven.

06
Aug

Sampling for Germination Test

1. The objective of sampling is to obtain a representative sample of suitable size for the required germination test.

2. A representative sample is one, which contain the same constitutes which are present in the seed lot and in the same proportions.

3. A good rule of thumb for determining how many bags to sample is to take samples from a number of bags that represents the square root of the lot size.

4. For example if the lot contains nine bags, then sample at least three bags.

5. If the lot contains 100 bags, then sample at least 10 bags.

06
Aug

Germination test

1. The purpose of testing of seed germination is to assess seed quality or viability and to predict performance of the seed and seedling in the field.

2. The ultimate aim of testing the germination in seed testing laboratory is to obtain information about the planting value of the seed sample and by inference the quality of the seed lot.

3. In addition, the laboratory germination results are also required for comparing the performance potential or superiority of the different seed lots.

4. In general, the farmers, seeds men and public agencies use the germination results for the following purposes:

a) Sowing purposes, with a view to decide the seed rate to achieve desired field establishment.

b) Labelling purposes.

c) Seed certification purposes.

d) Seed Act and Law Enforcement purposes.  

06
Aug

Seeding rates and plant populations

Seed rate depends upon method of sowing, test weight i.e. weight of 1000 healthy seeds, germination percentage, spacing, number of seedlings per hill and type of rice variety used as follows:

Seed rate for transplanted rice:

Rice types                        Seed rate (kg/ha)

Coarse variety                         50-55

Fine variety                               40-50

Hybrid variety                           15-20

06
Aug

Water Quality

 

1. While ample irrigation, water is necessary for a productive rice crop, poor quality water can cause soil-related problems that negatively impact rice. Some of the predominant soil-related problems that affect rice include salinity (high soluble salts), zinc deficiency, phosphorus deficiency and excessive sodium, which causes poor physical soil conditions. 2. salinity problems are common in the rice producing regions . 3. Rice is most sensitive to chloride and nitrate salts at the seedling growth stage. 4. If water contains excessive solids, obvious problems such as nozzle blockages will occur. 5. The effectiveness of some chemicals can be drastically reduced by suspended clay particles.
06
Aug

Water Quality

 

1. While ample irrigation, water is necessary for a productive rice crop, poor quality water can cause soil-related problems that negatively impact rice. Some of the predominant soil-related problems that affect rice include salinity (high soluble salts), zinc deficiency, phosphorus deficiency and excessive sodium, which causes poor physical soil conditions. 2. salinity problems are common in the rice producing regions . 3. Rice is most sensitive to chloride and nitrate salts at the seedling growth stage. 4. If water contains excessive solids, obvious problems such as nozzle blockages will occur. 5. The effectiveness of some chemicals can be drastically reduced by suspended clay particles.
06
Aug

Planting Techniques

1. The most suitable planting technique depends on locality, soil type, and crop ecosystem.        
2. Crops can be direct seeded or transplanted. Similarly transplanted crops can be established manually or by machine. 3. Direct seeded crops tend to mature faster than transplanted crops but have more competition from weeds.
06
Aug

Seed Soil Contact

1. To begin the germination process, the seed absorbs a certain amount of moisture from its surroundings. 2. In a dry seed bed, absorption occurs after distribution through the seed being in contact with moist soil or being submerged in water. 3. For seeds to make good contact with the soil, soil peds (clods) need to be similar in size to the seed and actually make physical contact with the seed. 4. Seed soaking or seed priming prior to planting expedites the absorption process and is often used to increase the rate of plant establishment.
06
Aug

Seed health

Refers to the presence or absence of disease-causing organisms such as fungi, bacteria and Virus and pests such as cutworms, insects. Seed health testing is necessary because, 1) Seed borne inoculum may give rise to progressive disease development in the field. 2) Imported seed lots may introduce new diseases. Methods of examining seed-borne diseases: a. Direct examination: Nematode galls, smut balls, discoloured seeds sclerotia of sheath blight (with microscope). b. Examination of imbibed seeds: Seeds are immersed in water to make fruiting bodies, symptoms visible or to encourage the liberation of spores. c. Examination of organisms removed by washing: Seeds are immersed in water with a wetting agent or in alcohol and shaken vigorously and shake vigorously to remove fungal spores, hyphae etc.
06
Aug

Seed placement

1. Rice seeds must be placed close to the soil surface.

2. When dry seeding into heavier clay soils, place seeds within 10 to 15 mm of the surface.

3. If seeds are placed at depths greater than this, surface sealing will restrict the number of shoots that emerge and increase the time to emergence.

4. When wet seeding, seeds should not sink below the puddled surface.

5.Where possible the water is allowed to partially clear before seeding.

6.This may require waiting for up to 48 hours after puddling.

Copy rights | Disclaimer | RKMP Policies