388 



SUBJECT INDEX 



Fraxiiiii.< nigra, distribution in North 



America, 368 

 pcimsyhanica, reinoval of water 



from soil, 369 

 Frost injury, spruce, 142 



Geranium, condensation, 45 



Germany, dewfall, 43 



Gibberellic acid, effect on growth of 

 Hi'liaiithus, 243-244 



Gobabis, climatic diagram, 4 



Grape fruit, salt content and yield, 286 



Grass, yield in relation to rainfall, 254 



Grassland, cropping pattern, 362, 363 



productivity in relation to rain- 

 fall, 199-200, 202 



Greenhouse growth of vegetables, 246- 

 256 



Groundwater depth in relation to 

 cropping pattern, 362, 364 



yield of crops, 334, 335, 336 



Growth function, 326-339 



Gurgler valley, wind velocity, 157 



Guttation, 37 



Hackberry, growth and flooding, 372 

 Halophytes, 204 

 Haloxyloii nrficiilatiini, 207 



life cycle, 213 



seasonal body reduction, 215 



— - transpiration, 217 



weight of transpiring body, 



213, 261 

 HcliaiitlicinuDi clwiiuiccistus, transpiration, 



184 

 Helianthuf aiiniiiis, growth in wind 



tunnel, 237-243 

 Heliclirysiini cirenaritiin, stomatal closure, 



197 

 transpiration, 190-191, 194- 



195, 196, 197 



water content, 194-195 



Helens mollis, 315 



Hungary, Alcali Steppe, Querais cerris, 



263, 265-266, 267 

 Hydrature, definition, 272 



and plant production, 272-286 



Hydnnotyle vulgaris, 169, 184 



Hydrocotyle vulgaris, stomal behaviour, 



181, 182 

 transpiration, 173, 180-182, 



185, 186 



Incident precipitation, measurement, 



136-137, pi. I 



on woodland, 136-138 



India, water vapour uptake by soil, 52 

 Indole -acetic acid, effect on growth of 



Heliaiithus, 243 

 Innsbruck, osmotic value in plant 



communities, 159 

 Interception of precipitation, in spruce 



stand, 1 1 7-1 19 



in woodland, 127-140 



Iraq, 277, 281 



Ireland, potential water deficit, 15 



Irrigation and grazing, 337 



effect on sugar beet growth, 



340-354 

 Israel, 207, 208 



dewfall, 43 



stone heaps (dew collectors) in 



Negev, 45 

 Italy, 235-237 



Jamaica, dewfall, 43 



Java, oxygen requirements of tree roots, 



371 

 Jerusalem, rainfall, 207, 213 



Kabul, climate, 8 



Kaiserstuhl (S.W. Germany) temperature 

 gradient in soil, 79 



Kale, growth, 353 



Kompedal (Denmark) soil moisture, 

 149-151 



soil profile, 149-150 



Kraighgau, (S.W. Germany), tempera- 

 ture gradient in soil, 79 



Larch, removal of water from soil, 369 

 Larix laricina, distribution in North 



America, 368 

 Leaf tissue, hydration in relation to 



photosynthesis and respiration, 225- 



233 

 Legumes, cropping pattern, 360, 361 



