1. Leaves: Alternate (Citrus, Murraya) or opposite (Evodia), petiolate, petiole may be winged (Citrus aurantium), simple or compound-pinnate (Murraya), palmate (Aegle and Citrus) smooth gland dotted, glands with essential oils, exstipulate, margin entire or serrate, unicostate reticulate venation. The main characteristics are: Growth of the main axis (peduncle) is indefinite and continues to produce a … This item is part of JSTOR collection Citrus flowering: Citrus species show a relatively long juvenility period (two to five years) before the trees reach the mature stage to produce flowers. Access supplemental materials and multimedia. For terms and use, please refer to our Terms and Conditions The sequence of anthesis on an inflorescence was: apical flower first, then basal flower, then the subapical flower. Raceme Inflorescence… This is why it is also known as an indefinite or indeterminate inflorescence. Our core businesses produce scientific, technical, medical, and scholarly journals, reference works, books, database services, and advertising; professional books, subscription products, certification and training services and online applications; and education content and services including integrated online teaching and learning resources for undergraduate and graduate students and lifelong learners. Leafy inflorescences in citrus have been reported to favor higher fruit set and fruit persistence than leafless inflorescences. At the base of the cup, the female flowers develop while towards mouth the male flower develops. The inflorescence is a small cyme of a up to a dozen hermaphroditic flowers produced in leaf axils near branch tips. The flowers are white about ~2–3 cm across, with conspicuous yellow stamens and green pistil exserted from the corrolla tube. Extreme water stress reduces flowering, and GA content became significantly higher in the leaves of trees under severe water stress than in the leaves of trees that endured moderate water stress [101,102]. An inflorescence is categorized on the basis of the arrangement of flowers on a main axis (peduncle) and by the timing of its flowering (determinate and indeterminate). Terminals on which the earlier flowers appeared tended to have more inflorescences than those on which flowers appeared later. Fig. Stem: Woody (Citrus, Feronia), erect, cylindrical, branched, solid often thorny (Citrus), gland dotted. Inflorescences on which earlier flowers appeared also produced more flowers than those which began flowering later. All three types of flowers are present in this inflorescence. Many fruit were set on inflorescences without leaves, but on the basis of percent of flowers setting fruit, inflorescences with leaves were more productive. var pageTracker = _gat._getTracker("UA-3112662-2"); the length of the inflorescence with and without leaves, and the relationship between fruit set and inflorescence length, Hamlin oranges, 1970. factors with potential effects on fruit quality were, therefore, included with other studies on citrus fruit quality (Jahn, 1970). IN CITRUS flower initiation occurs shortly before the development of the inflorescence begins (Ab-bott, 1935). 1). Wiley has partnerships with many of the world’s leading societies and publishes over 1,500 peer-reviewed journals and 1,500+ new books annually in print and online, as well as databases, major reference works and laboratory protocols in STMS subjects. Published by the Botanical Society of America continuously since 1914, the American Journal of Botany (AJB) is the Society’s flagship research journal.

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