682 



INDEX 



Grape, physiological disturbances, 80, 86-87, 

 117, 569 



pinching, 454 



propagation, 591 



pruning, 438, 453-454, 467-471 



ringing, 436 



root distribution, 582, 591 



soils, 658-662, 668 



stocks, 553, 555, 559, 560, 563-582, 586-588 



temperature requirements, 241-247, 623-624 



training, 470 



varietal and group differences, 244, 314, 330, 

 331, 470, 496, 526, 543 



water requirements, 3, 16 



winter injury, 314, 329-331 

 Gummosis, 568 



Hail injury, 2 



Hardiness, see Frost Injury, Winter Injury, 



Winter Killing. 

 Haw, 400 

 Hawthorn, 400 

 Heading back, see Pruning. 

 Heating, see Orchard Heating. 

 Heat units and requirements, 336-247 

 Heeling-in, 19 

 Heterostyly, 492, 502 

 Hickory, 405, 620 

 Humidity, fruit setting, 80-83, 516 



geography of fruit production, 631 



growth, 78-82 



russeting, 79 



winter injury, 274 

 Hybridity and unfruitfulness, 499 

 Hygroscopic coeflScient, 13 



Immaturity, see Winter Injury, Winter Killing. 



Impotence, 478, 494-498 



Incompatibility, fruitfulness, 600-602, 507, 511 



grafts, 562-667 

 Integuments, 477 



Interfertility, see Fertility, Fruitfulness. 

 Intercrops, 40-41, 81, 124 

 Interfruitfulness, 601 

 Intersexualism, 490-492, 499 

 Inversion of temperature, see Temperature 



Inversion. 

 Iron, availability, 109, 116-117 



deficiencies, 116, 199 



in fertilizers, 117, 668 



in plant tissues, 101, 161-162 



in soil, 663-665 



solubility, 152 

 Irregular bearing, see Regularity of Bearing. 

 Irrigation, 8 



"alkali," 121 



color and quality of fruit, 74-76 



frost danger, 354 



fruit size, 71 



vegetative growth, 66 



winter injury, 278, 335 



Jonathan spot, 93 



Jujube, 404 



Juneberry, 400 



June drop, see Fruit Setting. 



K 



Killing back, 268-271 

 see Dieback. 



Land values, 638 

 Latitude, 237-239, 342-343 



Layering, 593 



Leaf pigments, 164 



Light, carbohydrate manufacture, 183 



frost injury, 262 



fruit-bud formation, 183 



fruit setting, 516 



nitrogen elaboration, 130 



phosphorus elaboration, 138 



transpiration, 27 



water requirement, 11 

 Lime, see Calcium. 

 Lithiasis, 95 

 Location, frost danger, 342-346 



fruit setting, 610-612, 515 



selection of, 635, 637-639 

 Loquat, 399, 553, 564. 575, 621 



M 



Macrosporangium, 473 

 Macrospore, 477 

 Magnesium, antagonism, 126 



deficiencies, 199 



displacement, 106 



excesses, 195 



in plant tissues, 101-102, 162-163 



in soil, 663-665 

 Manure, see Fertilizers. 

 Manganese, in plant tissues, 160 



in soil, 117, 197, 663-665 

 Maturity, 272 



see Winter Injury, Winter Killing. 

 Medlar, 400, 555 

 Micropyle, 477 

 Microsporangium, 473 

 Microspore, 478 



Moisture, see Humidity, Soil Moisture, Water. 

 Monoecious plants, 490-492 

 Mulberry, 404 

 Mulching, 34, 307, 315, 334, 353, 368 



N 



Nitrate of soda, see Fertilizers. 

 Nitrification, 110-112 

 Nitrogen, absorption, 130 



availability, 109-110, 222-224 



deficiencies, 198 



elaboration, 130 



excesses, 195 



fixation, 114-116 



in fertilizers, 123, 201-202, 222-224 



