208 



BOTANY OF CROP PLANTS 



Environmental Relations. — Rice has a climatic range simi- 

 lar to that of cotton; it is seldom raised north of that region 

 in which the average summer (June, July, August) tempera- 



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2 S 

 Ok, 



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3 ^ 



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ture is lower than 77°F. It reaches its best development in 

 moist regions. Certain sorts of upland rice are planted, 

 cultivated and harvested like oats. But, most of the rice 



