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How do you measure seed germination rate?
EquipmentTo conduct this test you will need the following:· Waterproof tray. A flat-sided water bottle cut in half lengthwise makes a good tray.· Water absorbent material. Tissues or cotton wool are ideal.· Seeds.· Water supply.Procedure· Place water absorbent material inside the waterproof tray· Take random sample from each seed lot and mix in a container· Take at least three seed samples from the mixed grain· Count out 100 seeds from each sample and place on absorbent material inside the tray· Carefully saturate the absorbent material· For each of ten [10] days check that absorbent material remains moist and record the number of germinated seeds· Compute germination test for five [5] days and for ten [10] daysThe rate of germination is an indicator of vigor. Rapid seed germination increases the chance that seed will establish in the field.Calculating the germination rateGermination rate is the average number of seeds that germinate over the five and ten day periods.Germination (%) = Number of seeds germinated x 100Number of seeds on trayFor example, If 86 seeds germinated in a tray of 100 seeds after 10 days, thenFor more information contact Agricultural Engineering UnitIRRI, DAPO Box 7777, Metro Manila, PhilippinesTel.: (63-2) 580-5600, Fax.: (63-2) 580-5699Email: M.Gummert@cgiar.orgJ.Rickman@cgiar.orgIRRI International Rice Research Institute10-day germination (%) = 86 x 100 = 86%100
What is the average number in seeds?
The average number can be anything but the only thing that can be the answer depends on the number of seeds.
What is the formula for calculating the seed rate?
number of seeds that terminateur divided by the total number of seeds mutiply by 100%
How many corn seeds are on a cob?
It varies depending on a number of factors, but usually somewhere between 200 and 500 seeds per cob or ear.
What percentage do number 1 seeds make final four?
From 1979 - 2010, 54 no 1 seeds have made the final four. That's 42.2%
