EXPERIMENT STATION REPORT. 293 



3. Shape of fruits may be inherited in a different manner 

 among plants grown from the seeds of the same handworked 

 fruit. 



4. The V-i generation of a cross between a tomato with a 

 very long fruit ("Pear") and a tomato with a very flat fruit 

 ("Ponderosa") may show on the same plant, or even on the same 

 cluster, fruits which are longer than broad and others which 

 are broader than long. (See Plate XXX.) 



Shade Experiments. 



REPORT OF PROGRESS. 



It has long been known that in darkness and shade different 

 plants behave in entirely different ways. In some shade greatly 

 changes the shape and size of the vegetative organs, in many it 

 greatly interferes with the reproductive faculties, while in others 

 it inhibits their activity altogether. Still there are many plants in 

 which either the shape or the size of leaves and stems are not 

 greatly changed, or in which flowering and fruiting may go on 

 in an almost normal way. 



The following is the report of a preliminary experiment con- 

 ducted in the greenhouse during the summer of 1910, which was 

 to serve as a guide for the selection of material and suitable 

 conditions for a larger field experiment. 



A section of the central bench of the greenhouse, bounded by 

 uprights 7 ft. apart each way, was transformed into a tent by 

 covering the sides and top entirely with heavy white canvas (See 

 Plate XXXI). Thirty-six lo-inch pots inside of the tent and 

 the same number outside on the bench were filled from the same 

 pile of well mixed fertile soil and planted on June 3rd with seeds 

 of E.vtra Early Valentine Bean, Early Curled Silesian Lettuce, 

 Giant Crimson Globe Radish, Red Currant Tomato, Yellow 

 Peach Tomato and Crimson Cushion Tomato. 



Notes were taken on time of germination, flowering, fruit- 

 ing, comparative rate of growth, etc. On June 28 all' plants 

 were pulled up for individual measurements except that in both 

 tent and control lots there were retained four pots with beans, 

 four with lettuce, four with radishes, and four with the three 

 types of tomatoes mixed. The remaining five lots of four pots 

 each were planted with Triumph Szveet Corn, Arlington Cucum- 

 ber, White Mustard, Bryophyllum and Kochia scoparia. Notes 

 were taken as before until November 28, when samples of all 

 plants were preserved for microscopic study. 



