TY - JA AU - Massimino,D. AU - Andre,M. AU - Daguenet,A. AU - Massimino,J. AU - Richaud,C. AU - Vivoli,J. TI - Evolution horaire au cours d' une journee normale de la photosynthese, de la transpiration, de la respiration foliaire et racinaire et de la nutrition N.P.K. chez Zea mays SN - 0031-9317 U1 - 81-586258 PY - 1980/// KW - Maize KW - AGROVOC KW - Zea mays N1 - 6 ill., 34 ref. Summary (En); Peer-review: Yes - Open Access: Yes|http://science.thomsonreuters.com/cgi-bin/jrnlst/jlresults.cgi?PC=MASTER&ISSN=0031-9317 N2 - Metabolism of Zea mays L.cv. INRA F(,7) x F(,2) can be measured hourly with the "C(,2)3A system", under favourable and constant growth conditions. The photosynthesis is especially stable and is submitted only to a development linked with the leaf surface growth. During the vegetative stage the leaf surface increases regularly both in the day and in the night. The water loss does not change during the diurnal period and remains important during the night if humidity is less than 100 per cent. The leaf respiration is nearly stable. The root respiration, ensured with O(,2) and CO(,2), fluctuates according to a typical thythm with two maxima. Day and T2 - Physiologia Plantarum ER -