i\ni-x.. 



rage. 



Alwriiin (uisos, climate coinpnroil witli Tunis oases 22,23,24.27,28 



Alkali soils ^ :i<;-41 



composition o*f the alkali 37 



ret-lamation 30 



ivsistant varieties of date palm (>(», 7(», 72. 74, 78, 70. 84. S5 



Amniary variety 87. 103 



Ant^'oo variety 74. 97 



Aresbty variety 70^101 



Arizona localities, eliniate compared with Tunis oases 22. 2:!. 24. 27. 28 



Atmospheric humidity -t> 



Baydh Ilamnuim variety 7(5,100 



Bayjoi) v;iriety S-- ^7 



Bent Sejiuy variety 87,103 



Besser Ilalof) variety 78.101 



Boo Affar variety.-! 58. (iU, 101 



Boo Fairoos variety r»8, (!7, 101 



("alciiun sulphate in soils 34.38 



(iiedakh variety 92.10(2 



Classification of varieties hy hotanical characters 9.">-97 



l)y commercial value ">7 



Climate of Tunisian oases 21-28 



humidity - 2(j-27 



precipitation 2."». 27-28 



temperature 21-2G. 



Climate of different years as affecting date crop 2.5.2(5.51,52 



Colors, terms used in descril)ing ^ 95 



Cost of .-i.iiricultural operations 45.47.5.3-54 



Cultivation of soil 4.5 



Culture of date palm 41-55 



Date crop as aftected l)y climate of different years 25.20.51.52 



DegletBarca variety 90 



Caid variety 90 



Ilamidatoo variety 92, 105 



Hassen varietv 92, 103 



Noor variety 58, 03, 104 



alkali resistance C6 



hotanical characters 03,1(34 



climatic conditions necessary 04 



connnercial importance 58,03 



geographical distrihulion and abundance 04 



harvesting '^~~'^f 



productiveness ^5.5 



quality in Tunis as compared with Algeria (J5 



quality of fruit from commercial standpoint .58,03 



slow development of pahns 05 



time of ripening 65 



Sennayga variety 90 



Djerid. Hcc Jerid. 



Doonga variety 77,101 



Douz oasis 



Drainage, chemical composition of drainage water 



description of system 33 



importance in reclaiming alkali soils 36 



92 107 



19 

 40 



