CORN 



(Chapter 14) 



1. On a glass or cup of water place a blotter and over 

 it place a small strip of cloth so that it extends down into 

 the water. This acts as a lamp wick and draws up the 

 water to keep the blotter moist. On the blotter place 

 several grains of corn and cover with another blotter. 

 Keep in a warm place and observe from day to day the 

 sprouting of the corn. Observe the root hairs. How 

 many temporary roots arc there? 



2. In a tall pot or jar, plant five grains of corn at each 

 of the following depths: one, two, four, and six inches. 

 Place them in a warm room and keep moist, but not too 

 wet. From day to day note the growth at each depth, 

 both the temporary and the permanent roots. Observe 

 the time it takes for the plants to come up from each 

 depth. 



3. Test some seed corn as follows : 



Fill a box three or four inches deep and a foot square 

 with sand. Across the top place a cloth on which squares 

 have been drawn three inches each way and numbered, 1, 

 2, 3, etc. Number several ears of corn, one for each 

 square. Take six grains from each, and place them in the 

 corresponding squares. Take the kernels from different 

 parts of the ear, but not from the base or tip. Cover 

 them with another cloth and two or three inches of sand. 

 Keep moist and warm. If the grains of all the squares 



267 



