a1 University of Reading, Department of Agriculture and Horticulture, Plant Environment Laboratory, Shinfield, Reading RG2 9AD, UK
Factorial combinations of three daylengths (11, 12 and 15 h), warm and cool days (30° and 22° C) and warm and cool nights (18° and 10°C) were imposed on nodulated plants of three chickpea cultivars grown in pots in controlled environment growth cabinets. The treatments had large effects on growth, phenology and seed yield and no single environmental regime was optimal for all successive stages of development. Root growth and nodulation were extremely responsive to the environment experienced by the shoot. Conclusions are drawn on the potential contribution of these data to the development of empirical screening techniques suitable for large, segregating populations in field programmes devoted to the production of chickpea cultivars better adapted to their intended environments.
(Accepted March 03 1980)
† One of a series of papers resulting from a collaborative project with the International Crops Research Institute for the Semi Arid Tropics (ICRISAT), sponsored by the UK Overseas Development Administration.