كتب ذات صلة

Auxins and plant growth.

The effect of diethylstilbestrol and methyltestosterone on the growth, carcass characteristics, and nitrogen retention of growing swine

• Effect of preharvest sprays of 2,4,5-trichlorophenoxypropionic acid upon the ripening of Jonathan, Starking, and Golden Delicious apples
  المؤلفون: Lott, Richard V. ,  Rice, Robert Russell.
• Effect of preharvest sprays of 2,4,5-trichlorophenoxypropionic acid upon the maturation of Jonathan, Starking, and Golden Delicious apples
  المؤلفون: Lott, Richard V. ,  Rice, Robert Russell.

• A study of soybean varieties with reference to their use as food
  المؤلفون: Woodruff, Sybil ,  Klaas, Helen
• A study of the factors influencing the improvement of the potato
  المؤلفون: East, Edward M.
• Some important insects of Illinois shade trees and shrubs
  المؤلفون: Forbes, Stephen Alfred