No description available.

A maternity colony of the big brown bat (Eptesicus fuscus) was observed from 21 May 1992 to 12 October 1992. The colony consisted of approximately 110 females at the beginning of the study, and about 180 bats following birth of the young. Bats were observed at emergence to gather data on factors affecting initial emergence: light intensity, temperature, relative humidity, barometric pressure, wind speed, cloud cover, and moon phase. Light intensity and cloud cover apparently are the factors most affecting the variation between initial emergence and sunset. / Department of Biology

Typescript. / Thesis (Ph. D.)--University of Hawaii at Manoa, 1978. / Bibliography: leaves 198-212. / Microfiche. / xviii, 212 leaves ill. (some col.)

Typescript. / Thesis (Ph. D.)--University of Hawaii, 1965. / Bibliography: leaves [104]-107. / viii, 107 leaves mounted illus., tables

xvii, 215 leaves : ill. ; 30 cm.0 cm. / Title page, contents and abstract only. The complete thesis in print form is available from the University Library. / Thesis (Ph.D.)--University of Adelaide, Dept. of Agronomy, 1974

xvii, 215 leaves : ill. ; 30 cm.0 cm. / Title page, contents and abstract only. The complete thesis in print form is available from the University Library. / Thesis (Ph.D.)--University of Adelaide, Dept. of Agronomy, 1974

Plants that develop under foliar shade encounter both low photosynthetically active radiation (PAR) and low red to far red ratios (R:FR). Both of these factors are important in determining developmental responses to shade. Papaya (Carica papaya L.) seedlings grown under filtered shade (low PAR and low R:FR) were compared with seedlings grown under neutral shade (low PAR with R:FR similar to that of full sunlight), and high light (moderate PAR with R:FR similar to that of full sunlight). The results indicated that papaya exhibits a light seeking strategy as evidenced by morphological and anatomical differences between treatments. Based on past research the results also indicate shade developmental responses in papaya to be phytochrome mediated.

Experiments were conducted in controlled-environment cabinets to show the effect of temperature and light intensity on the growth and fruiting of snap beans. Leaf weights varied inversely with the temperature, but stem weights and numbers of nodes were not greatly affected by day temperature in the range of 75° to 95°F. Blossoming and pod set were similar at day temperatures of 75° and 85°F but were reduced at 95°F. When day temperature was 95°F, a 60°F night temperature resulted in increased blossoming and pod set compared to 80°F. When pods were harvested at marketable maturity, blossoming in bush beans was cyclic. Plants grown at a light intensity of 1900 foot-candles had a lower fresh and dry weight of leaves, stems, and pods, and fewer blossoms and pods set than plants grown at 2700 and 4000 foot-candles. Field experiments showed that planting dates after May 29 reduced the yield of pods in pole beans. Nitrogen level and row direction did not affect yield of pods in pole beans. Number of pods per plant in pole beans increased directly with the row spacing. Chemical sprays at blossoming caused no increase in yield of pods in pole beans, and only a slight increase in the yield of pods in bush beans. Differences in yields of pods between varieties of bush beans were due differences in the number of pods per plant. / Land and Food Systems, Faculty of / Graduate

No description available.

No description available.