cted to it blos- and oxygen. Water and salts are somed five weeks after the seeds also taken up by the roots of the were planted, and the stems were plants. much longer than the stems of the The various ways in which the EFFECT OF DIFFERENT COLORED LIGHT RAYS UPON PLANT LIFE. other plants. The… … plants. kinds of plants, such as MORTAR IN THE LOADING POSITION. Former _ observations geraniums, strawberries, etc., but in all cases blue have already proved that light proved injurious to certain rays of the sun’s vegetation, and plants that spectrum have a harmful effect on plant organisms,…
Internet Archive · Public domain (published before 1931). Free to use for anything.
