120 



BOTANICAL GAZETTE 



{ 



ARY 



TABLE X 



Effect of temperature on amount and distribution of phosphorus in barley leaves 





Culture no. and 

 treatment 



44- 

 24. 



41. 



108. 



87. 

 IO4. 



High N warm 



High N warm 



High P and N warm 



High N cool 



High N cool 



High P and N cool.. 



Fi SOLUBLE IN ANHYDROUS 



ETHER 



Percent- 

 age 

 fraction 



0.7369 

 0.6847 



0.7857 



o.7739 

 0.7247 



o.7975 



Percent- 

 age total 

 leaf 



0.0641 



0.0539 

 0.0819 



0.0638 



0.0627 



0.0612 



Percent- 

 age total 

 P in leaf 



923 



793 

 10.26 



11.65 

 10.99 



937 



Fa SOLUBLE IN HOT ALCOHOL 



WATER 



Fj INSOLUBLE IN ALCOHOL, 

 ETHER, AND WATER 



Percent- 



Percent- 



Percent- 



Percent- 



Percent- 



age 



age total 



age total 



age 



age tota 1 



fraction 



leaf 



P in leaf 



fraction 



leaf 



. 8683 



0.2866 



41.28 



0.5898 



o.3437 



0.8211 



0.2770 



40.80 



0.5960 



0.3478 



1.3394 



. 4368 



5469 



0.4918 



0. 2800 



0.5352 



0.1622 



29.62 



0.5239 



0.32I8 



0.5096 



0.1417 



24.80 



0.5614 



0.3505 



. 9602 



0.2907 



44.50 



0.4856 



0.30I2 



Percent- 

 age total 

 P in leaf 



49-49 

 51-27 



35-05 



58.73 

 04.21 



46.13 



TABLE XI 



Effect of temperature upon 



OF F, NITROGEN OF BARLEY LEAVES IN I PER 



cent NaOH (material DIGESTED WITH I PER CENT NaOH FOR 



48 HOURS AT 37-40° C.) 



Culture no. and treatment 



44- 



24. 



41. 



108. 



87. 

 104. 



Soluble nitrogen 



High N warm 



High N warm 



High P and N warm 



High N cool 



High N cool 



High P and N cool . 



Percentage 

 fraction 



0.910 

 0.8570 

 1. 1 26 



O.873 

 I.052 



O.923 



Percentage 

 total leaf 



Percentage 



total N in 



leaf 



0.5303 

 O.4902 



0.641 I 



O.5361 



O.6681 



O.5726 



17 

 18 



18 



20 



26 



22 



8l 



17 



50 



93 



03 

 07 



Insoluble nitrogen 



Percentage 

 fraction 



2.649 

 2.380 

 2.927 

 2.478 

 2.263 

 2.406 



Percentage ^f^fo 



total leaf 



I ■ 5440 



I.3892 

 I .6670 



I .5221 



1-4373 

 1 .4926 



leaf 



51 



51 

 48 



59 



54 



— — 



0/ 



S5 



43 

 10 



43 

 75 

 53 



TABLE XII 



Effect of temperature upon solubility of F 3 phosphorus of barley leaves 



in 1 per cent NaOH (material digested with i per cent NaOH 



FOR 48 HOURS AT 37-40° C.) 



Culture no. and treatment 



44. 

 24. 



41. 



108. 



87. 

 104. 



High N warm 



High N warm 



High N and P warm 



High N cool 



High N cool 



High N and P cool . . 



* Poor duplicates. 



Soluble phosphorus 

 (by difference) 



Percentage 

 fraction 



Percentage 

 total lea 



O.2292 

 O.1994 



OI959 



0. 1132 

 0. 1807 

 0. 1666 



0.1335 



0. 1 163 



0.1115 



o . 0696 

 o. 1 148 



0.1039 



Percentage 



total P in 



leaf 



19. 22 



13.96 



12.70 

 20. 10 



15 91 



Insoluble phosphorus 



Percentage 

 fraction 



o 

 o 

 o 

 o 

 o 

 o 



3606 

 3966 



-~* 



2959 



4107 

 3807 



3190! 



f One analysis only, duplicate lost. 



Percentage 

 total leaf 



0.2I02 



O.2315 



0.1685* 

 0.2522 



O.2417 



o.i979t 



Percentage 



total P in 

 leaf 



3° 



27 



34 



IO 



21. 



09 



46. 



03 



42. 



32 



30 



3° 



