subject index 



► 

 ► 

 ► 

 ► 

 ► 



► 



Acetylene, 108 



Action spectra, see Light-breaks; Light 

 quality 



Age, and flowering in woody peren- 

 nials, 120-126; of leaves, and photo- 

 periodism, 117, 119-120; of plants, 

 and response to cold, 118 — and 

 photoperiodism, 5, 15-16, 118-120; 

 see also Juvenility 



Altitude, 90 



Annuals, 6, 54, 136 



Anthesis, 7, 127-130 



Antiauxin, 106-109, 132-133 



Auxin, definition, 68; and induction, 

 89-91; inhibition of flowering, 79, 

 90-91, 106-108; promotion of flower- 

 ing, 90, 106-108; and red, far-red 

 system, 91; and sex expression, 132- 

 133; and vernalization, 118; see also 

 Antiauxin 



Bark inversion, 123-124 



Bending, 90-91, 124 



Biennials, cold requirements, 54, 58- 



59, 61-62, 118; definition, 6; genetics 



of, 135 

 Bolting, caused by furfuryl alcohol, 



109; definition, 101; and gibberellin, 



101-104, 137 

 Bulb plants, 64-66 



Carbohydrate, and devernalization, 60- 

 61; -nitrogen ratio, 112, 119; promo- 

 tion of flowering, 79; substitution 

 for high-intensity light, 21; trans- 



location, and florigen translocation, 

 73-77, 79 — and flowering in woody 

 perennials, 123-125; and vernaliza- 

 tion, 57 



Carbon dioxide, 21-22, 92 



Carbon monoxide, 133 



Cereals, winter and spring, devernali- 

 zation of, 59-60; genetics of, 134-135; 

 and gibberellin, 101; minimum leaf 

 number in, 117; vernalization of, 54- 

 57 



Chelating agents, 114-115 



Chlorophyll, 31-32, 41 



Circadian rhythms, see Endogenous 

 circadian rhythms 



Cold requirements for flowering, of 

 biennials, 54, 58-59, 61-62, 118; in 

 bulb plants, 64-66; genetics of, 134— 

 135; of perennials, 59; and plant 

 age, 118, 135; relation to photo- 

 periodism, 61-62; satisfaction of, by 

 diffnsate, 111 — by gibberellin, 100- 

 101— by short days, 61-62; of winter 

 annuals, 54-58; see also Vernalization 



Cold treatments, of bulbs, 64-66; of 

 developed plants, 54, 58-59, 61-64; 

 - effects of, on dormancy, 62, 129 — on 

 seed germination, 57 — on vegetative 

 growth. 59-60, 64; of germinating 

 seeds, 54-58, 62; seasonal control by, 

 54, 129; see also Vernalization 

 Copper, 115 

 Cotyledons, 38-39, 119 



Critical daylength, definition and 

 qualifications, 13, 15, 20, 22-24; and 



161 



