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Accueil du site → Master → Etats Unis → 1986 → THE EFFECTS OF TEMPERATURE ON DEVELOPMENT IN TWO CULTIVARS OF GUAR (CYAMOPSIS TETRAGONOLOBA (L.) TAUB.)

University of Arizona (1986)

THE EFFECTS OF TEMPERATURE ON DEVELOPMENT IN TWO CULTIVARS OF GUAR (CYAMOPSIS TETRAGONOLOBA (L.) TAUB.)

Forrest, Paul Eugene

Titre : THE EFFECTS OF TEMPERATURE ON DEVELOPMENT IN TWO CULTIVARS OF GUAR (CYAMOPSIS TETRAGONOLOBA (L.) TAUB.)

Auteur : Forrest, Paul Eugene

Université de soutenance : University of Arizona

Grade : Master of Science (MS) 1986

Résumé
Three replicates of two guar (Cyamopsis tetragonoloba (L.) Taub.) cultivars were grown from 10 dates of planting (DOP) at two locations in 1985 for the purpose of determining a base temperature (tR) to be used in construction of a crop heat unit (HU) model. The cultivars were ’Kinman’ and ’Lewis’ which have indeterminate and determinate growth habits, respectively. The tg could not be determined from linear correlations of rate of growth (RG) versus the average developmental temperature (ADT) during various intervals of phenological development. This was due primarily to negative influences above an ADT of 29 C for reproductive growth and 30 C for vegetative growth. RG units were reported as percent/day from planting to 50% flowering, and either plant height increase as cm)day or nodes/day between planting and an early point, a later point, or the interval between the early and later points, during active growth. Rates of gross vegetative development, measured as cm/day, nodes/day or cm/node, are given for various portions of the lifespan of the species.

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