1920] 



SHU LL— SEEDS 



369 



absorpt 



As the seeds seemed to show a somewhat differ- 



behavior 



TABLE IV 

 Water intake by Xanthium seeds in percentage of air-dry weight 



IV 



2.35 



5.56 

 8.26 



11.07 



14.98 



18.83 



21-53 

 24.29 



26.79 



29.19 



31.10 



32.95 

 3430 



35-75 

 37.20 



38.11 

 39.01 



40.01 

 40.86 



44- 5 6 



v 



2.72 



5.44 

 8.21 



10.28 



16.51 



22.15 



23.84 

 26.90 



29.18 



31.21 



3259 



3447 

 36.10 



3709 



3&-77 

 39.61 



40.50 

 41.44 



42.33 



VI 



2.08 



494 



741 

 10.27 



16.51 



20.68 



23.67 



26.27 



28.87 



31.21 



33-42 

 35-63 



37.84 



39.27 

 40.96 



42.46 



43-69 

 44-73 



45-77 



Percentage 

 of averages 



2.38 



5-34 



794 

 10.32 



14.64 



18.54 

 21.13 



23.64 

 26.04 



28.17 



3°. U 

 32.16 



33 -72 

 35- 20 



36.66 



37-77 

 38.79 



40.64 



TABLE V 



Water intake by Xanthium seeds in perc 



of air-dry weight, 35 C. 



Time 



(minutes) 



I. 



5. 

 IO. 



15. 

 20. 



30. 

 40. 



50. 

 60. 



7o. 



80. 



QO. 



loo. 



• • 



• - 



* • 



I 



2.21 



6.35 

 I0.22 



14.23 



16.85 



21.28 



25.14 

 28.80 



32.39 



35.15 

 3729 



39 23 

 3950 



II 



2.46 



7-37 



1137 



1459 

 17.36 

 22.58 



26.42 

 30.18 



3379 

 36.64 



39 48 



41.78 



4378 



III 



3-73 

 9.28 



1540 

 20.24 



2313 



27.77 



31.94 



34-90 

 37.66 



40.01 



42.23 



4405 



4553 



IV 



2 



7 

 n 



14 



17 



21 



25 



29 

 32 



35 

 37 

 39 

 4i 



84 

 61 



34 



25 



15 



85 



45 



25 



85 

 20 



76 



7o 

 22 



V 



2.46 

 5-88 



9.78 

 12.31 



14.09 



19.49 



23.67 

 27.09 



30.16 



331* 

 35.50 

 37.62 



39-67 



VI 



2.75 



6. 19 

 10.25 

 12.79 



15.34 



1995 

 23-52 

 26.82 



30.12 



33 2 9 



3631 



3879 

 40.92 



VII 



3.76 



9 92 

 14.98 



18.47 

 21.41 



25-44 

 28 . 86 



31.81 



34-68 



37-21 



3933 

 41.18 



42.75 



VIII 



2.44 



7.04 



11 .10 



1380 



16.51 



21.25 



2544 

 26.69 



31.94 



35-05 

 37.21 



39-24 

 41 .00 





Percent- 

 age of 

 averages 



2.83 



746 

 II.82 



I5 11 



17.84 



22.45 

 26.32 



29.70 



32.95 



3571 



38.13 

 40.19 



41.78 



studies should be made of absorpt 



ary field 

 likelv to 



material, with the purpose of disclosing the variability 



occur at a given age of seeds. These experiments were conducted 



