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Index Names of cultivars are indicated by (cv.). n denotes ireference to a footnote. Abscisic acid (ABA) Agrotis ipsilon 477, 489 in potato plant 126, 127 Agrotis segetum 477, 489 and suberization 112 Ailsa (cv.), tuber quality 520 and tuber formation 112, 118, 120--2 Air flow in storage 620--1 Abscission of flower 136 Albumin 51<0 Acarina 490 Alcidodes westermanni 477 Acaulia Aldicarb 426 classification 17, 38 Allagash Russet (cv.), organic acid content evolution 55, 56, 57 707 geographical distribution in South Alloxydim 381 America 45 Alloxydim-sodium 391 Acetaldehyde, influence on respiration 648 Allozyme analysis 54 Acetic acid, influence on respiration 648 Alopecurus myosuroides (Black-grass) 378, Ackersegen (cv.) 392 tuber structure 112 Alpha (cv.) 204 water use 217 amino acid content 699 Aclonifen 393 tuber structure 112 Actipron 392 Alternaria solani Added value 807-8 control of 423, 428 Africa geographical distribution 407 climate and yields 738-9 survival 420 consumption 801, 806 symptoms 407 imports and exports 800, 805 tuber infection at lifting 417 production 796-7 Altitudes for potato growing 4, 41-5 Ageing Amino acids 509 causes of premature senescence 407-8 2-aminobutane 427 stages in 261-3 Amitrole 384 see also Physiological age Amphibious bistort (Polygonum Agricultural Development and Advisory amphibium) 377 Service (ADAS) 458 Amrasca biguttala biguttala 483 Agriotes 477, 486 Anatomy of potato plant 65 Agrobacterium rhizogenes as agent for Andean potato weevils (Premnotrypes) 476, introducing genes 144 477, 478, 487 Agrobacterium tumefaciens 126, 114 Andes Agromyzidae 490 consumption 805 Agronomy 816 origin of potato cultivation 794 and breeding 353-5 Angiosorus solani 404 general principles 845-53 geographical distribution 407 knowledge of 875-7 symptoms 407 Agrostis gigantia (Black bent) 376 Annual meadowgrass (Poa annua) 378, 387, Agrostis stolonifera (Creeping bent) 376 389, 391, 392 Agrotis 477, 489 Anomala 487 Index 883 Anomala dimidiata 477 Bacterial diseases, in the tropical lowlands Anther culture 141-2 768-70 Anthocyanins 515, 520 Bacterial ring rot, import restrictions 404 Apex, see Shoots, apex; Stolons, apex Bacterial wilt Aphanes arvensis (Parsley piert) 391 and climate 403 Aphididae 480--3 in the tropical lowlands 768 Aphids 272, 480-3 Bangladesh and diffused-light storage 736 example of production 776-7 leaf hairs as resistance mechanism 85--6 production 797--8, 805 trapping of 482-3 Bed planting 577--8 Aphis craccivora 481 Belonolaimus 442 Aphis fabae 477, 481 Belonolai¥tHlS longicaudatus 440 Aphis frangulae 481 Belt planters 576 Aphis gossypii 477,481 Benomyl426 Aphis nasturtii (Buckthorn aphid) 477, 481, Bentazone 391-2 482 Bintje (cv.) Archaeological evidence of domestication amino acid content 699 2-3 carbohydrates 685-9, 690-1, 695, 696 Area under production 796-7 mineral nutrition 179-80, 193-4 Aristo (cv.), and fertilizers 206 organic acid content 706 Arma (cv.), heat tolerance 758 regeneration 69 Arran Banner (cv.) respiration 640 leafy shoot 71 root depth 838 tuber development 104 seed tubers 257 tuber quality 520 tuber quality 545, 667 Arran Comet (cv.) tuber structure 112 leafy shoot 76 use in France and Netherlands 806 leaves 824--6 wound healing 653 plant density 315 Black bent (Agrostis gigantia) 376 seed tubers 252, 258, 267, 281, 282 Black bindweed (Fallopia convolvulus) 378, tuber shape and size 548 388, 391 Arran Consul (cv.) Black dot 405, 414, 416, 423, 431 growth 660 geographical distribution 407 respiration 638 symptoms 407 seed tubers 250 Blackening Arran Pilot (cv.) after cooking 533--6 leafy shoot 70, 71 internal, effect of fertilizer use 207 seed tubers 250, 256 Black-grass (A,topecurus myosuroides) 378, tuber development 100-4, 124 392 tuber structure 98 Blackheart 517 Ascorbic acid 511-12 Blackleg 414, 420, 421 content 512, 705 conaol of 426 Asia geographical distribution 406 consumption 801, 806 and plant spacing 410 imports and exports 800 seed tuber decay 404, 405 production 797 symptoms 406 Asparagine 510 Black nightshade (Solanum nigrum) 375, Assia (cv.), and carotenoids 515 378,388 Atlantic (cv.), organic acid content 707 Black scurf, 416, 419, 420, 424, 426 Atriplex patula (Orache) 378 and cut seed 409 Aulacorthum circumfiexum 481, 482 geographical distribution 408 Aulacorthum solani 477, 481, 482 incidence after various treatments 274 Austroasca viridigrisea 477 seed tuber decay 405 Available Water Capacity (A WC) 221 and stems 310 Avenafatua (Wild oats) 378, 381, 392 symptoms 408 Blackspot 525, 527, 528-30,581 Bacteria Blemishes on tubers 415-16 geographical distribution 406 Blight 46,394,412,533, see also Early blight; symptoms 407-9 Late blight Bacterial brown rot 404 Blue spot 646-7 884 Index Bolivia, potato production 804 geographical distribution in North and Bonum (cv.), organic acid content 706 Central America 44 Boron, content 165-7 Bothinus maimon 477 Calcium Botrytis cinerea content 165-7 geographical distribution 407 and hollow heart 518 and leaves and stems 414 and internal rust spot 519 symptoms 407 Cambridge University Potato Growers Box storage and handling 593-4 Research Association (CUPGRA) 877 Brachycaudus helichrysi 481 Camptothecin 672 Brazil, potato production 804 Canada, seed trade 800 Breeding Cann.ing 547-8 behaviour 48-51 Canopy, see Leaves history 335-7 Captafol 428 methods 337-52 Cara (cv.) objectives 353-62 and growth 819 other techniques 362-4 and intercepted radiation 820 population breeding 350 and leaves 821, 827, 831, 833, 843 production of commercial varieties 361-2 and nitrogen 168-74, 181-2, 202, 860, 863 programmes 342-9 and physiological age 825-6 statutory trials 349-50 plant density 316, 328-9 in the tropics 740-1 and planting date 848 True Potato Seed (TPS) 351 and potato cyst nematodes 450-1 Bridgenorth (cv.), nitrogen and yield 179 and roots 838, 843 British Agrochemical Association (BAA) seed tubers 248, 263, 267 380 and tuber initiation 845 British Atlas of Potato Varieties 70 and water supply 218, 220 Broad mites (Polyphagotarsonemus latus) and yields 853-4 477,490 Carbendazim 427 Brodrick (cv.), tuber quality 543, 545, 546 Carbohydrate metabolism 124 Brown centre 517,518-19 Carbohydrates Browning changes during storage 684 enzymic (discolouration) 530-2 content 802-3 non-enzymic, during processing 540-7 Carbon dioxide 641-2 Brown Oil of Vitriol (BOV) 396 and intercepted radiation 817 Brown rot 404,414,415 and wound healing 657 and climate 403 Carbon disulphide 675 and cut seed 409 Carotenoids 515 geographical distribution 406 Cells symptoms 406 division and expansion in the tuber 105 Brown spot, see Rust spot division stimulated by wounding 111 Bruising 517, 524-6 Central America causes 580 consumption 801 factors 581 geographical distribution of wild potatoes internal 528-30 44-6 statutory and other standards 578-9 imports and exports 800 types of bruise 581 production 797 Buckthorn aphid (Aphis nasturtii) 477, 481, Ceramics depicting potatoes 2-3 482 Cereal cyst nematodes (Heterodera avenae) Buds 456 adventitious 69, 74 Ccrtilfied seed 271-8, 405 development as leafy shoot 93-4 Charcoal rot 424, 425 development as stolon 93-4 geographical distribution 407 lateral 70 symptoms 407 meristems, changes at sprouting 130-3 tuber infection at lifting 417 Bulbocastana Charlock (Sinapsis arvensis) 378 chemotaxonomy 54 Cheiroplatys latipes 477 classification 15, 19 .Chemical composition, changes during crossability 51 storage 677-79 evolution 56 Chemicals, effect on respiration 647-50 Index 885 Chemical treatments, effect on wound Coccinellids, leaf-feeding 476, 486, 493 healing 656 Coiled sprout 424 Chemotaxonomy 53-4 Coleoptera 485-7 Chenopodium album (Fat hen) 375, 378, Colletotrichum, and irrigation 416 391, 392 Colletotrichum cocco des 414, 419 Chickweed, common (Stellaria media) 377, geographical distribution 407 378 symptoms 407 Chile, marketing 805 Colorado potato beetle, see Leptinotarsa China decemlineata marketing 805 Columbia root-knot nematode, see origin and spread of potato 795 Meloidogyne chitwoodi production 797-8 Commersoniana production figures 507 classification 15, 22-3 Chlorine, content 165 crossability 51 (2-chloroethyl)-trimethylammonium evolution 56 chloride (CCC), and tuber formation geographical distribution in South 113, 119-120 America 45 Chlorophyll 515-16 Common chickweed (Stellaria media) 377, changes during storage 707-8 378 Chloropicrin 426 Common couch grass (Elymyus repens) 376. Chloropropham 666--70 384, 391, 392 Chlorosis, causes 406, 408 Common fumitory (Fumaria officianalis) Chocolate spot, see Rust spot 378, 387, 388, 389, 390 Chromosome numbers 51 Common reed (Phragmites communis) 376 of individual species 15-17, 18-41 Common scab Chrysanthemum segetum (Corn marigold) and consumer quality 514 378,387,389,391 control of 427 Chrysomelidae 485-6 and cut seed 409 Cicadellidae 483-4 geographical distribution 408 CIP (International Potato Center) 41, 341, and irrigation timing 869 496,507 risk determination 431 Circaeifolia survival of pathogens 404 classification 15,23 symptoms 408 crossability 51 Composition, changes during storage evolution 56 carbohydrates 684 geographical distribution in South chemical composition 677-79 America 45 chlorophyll 707-8 Cirsium arl'ense (Creeping thistle) 375, 376 dry matter 679-84 Citric acid 706, 707 hormones 708-9 Classification of potato species 13-41 lipids 708-9 Clal'ibacter, tuber infection during growth N-fraction 696--703 415 phenolif compounds 706 Clavibacter michiganensis subsp. sepedonicus pigments 706--7 414, 420, 421, 428 terpenoids
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