Premium
DEVELOPMENTAL CHANGES IN ENERGY (ATP AND ADP) AND NUTRIENT LEVELS PRIOR TO SENESCENCE IN PODDED AND DEPODDED PEA PLANTS
Author(s) -
Omer Lucy St.,
Horvath Steven M.,
Setaro Frank
Publication year - 1985
Publication title -
american journal of botany
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.218
H-Index - 151
eISSN - 1537-2197
pISSN - 0002-9122
DOI - 10.1002/j.1537-2197.1985.tb08446.x
Subject(s) - biology , sativum , nutrient , pisum , shoot , chlorophyll , dry weight , botany , point of delivery , senescence , horticulture , plant physiology , agronomy , ecology , microbiology and biotechnology
Energy (ATP and ADP) levels in stem apices of depodded pea plants ( Pisum sativum L. cv. Little Marvel) were significantly higher than those of podded plants during the pod‐filling stage before whole plant senescence. This difference in energy content appeared before decreases in leaf chlorophyll and soluble proteins occurred in plants of both treatments. In contrast, the mineral nutrient levels (N, P, K, Ca, Mg, Fe, and Mn) in stem apices of plants from both treatments were similar. Energy levels in reproductive leaves from podded and depodded plants were similar. The mineral nutrients in leaves with fruits in their axils and similar leaves of depodded plants were comparable except for nitrogen. Plant growth measurements—dry weight, leaf area, leaf dry weight, root/shoot ratio—were significantly higher in depodded than podded plants. Whole plant senescence occurred significantly earlier in podded than in depodded pea plants.