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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.

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Showing 21 to 30 of 440 (0.064 seconds)

Spelling suggestions: "subject:"seedlings"" "subject:"needlings""

21

The relationship of abscisic acid concentration in Douglas-fir needles to seedling vigor /

Puttonen, Pasi Kalevi. January 1983 (has links)
Thesis (M.S.)--Oregon State University, 1984. / Typescript (photocopy). Includes bibliographical references (leaves 54-60). Also available on the World Wide Web.
Abscisic acid. Seedlings.
22

Physiological and anatomical studies of several groups of Douglas-fir (pseudotsuga menziesii (Mirb.) Franco) seedlings which demonstrated differential survival potential under drought stress /

Heiner, Terry Charles, January 1968 (has links)
Thesis (M.S.)--Oregon State University, 1968. / Typescript (photocopy). Includes bibliographical references (p. 42-45). Also available on the World Wide Web.
Douglas fir. Seedlings.
23

Impacts of nursery processing on the survival, growth and physiology of 2+0 Douglas-fir seedlings /

Darbyshire, Robyn Lea Willey. January 1982 (has links)
Thesis (M.S.)--Oregon State University, 1983. / Typescript (photocopy). Includes bibliographical references (leaves 37-38). Also available on the World Wide Web.
Seedlings Douglas fir.
24

THE EFFECT OF GIRDLING ON PHOTOSYNTHESIS, RESPIRATION, CARBOHYDRATE LEVELS, AND NITROGEN STATUS OF THREE YEAR OLD LISBON LEMON SEEDLINGS

Bowers, Robert Charles, 1937- January 1966 (has links)
No description available.
Lemon -- Physiology.
Lemon -- Seedlings.
25

Algae and their effect upon the growth of citrus seedlings

Breazeale, John McFall January 1929 (has links)
No description available.
Algae.
Citrus fruits -- Seedlings.
26

Studies on the seedling anatomy of Larrea tridentata

Shellhorn, Samuel J., 1912- January 1955 (has links)
No description available.
Creosote bush -- Seedlings.
27

The effect of moisture, depth of planting, and compaction on seedling emergence of winterfat and crested wheatgrass

Al-Rabbat, Mohamad Fouad, 1935- January 1962 (has links)
No description available.
Rangelands.
Wheatgrasses -- Seedlings.
28

Seedling responses of cotton (Gossypium hirsutum L.) treated with growth regulators in the previous generation

Almeida, Francisco Celio Guedes, 1940- January 1974 (has links)
No description available.
Growth regulators.
Cotton -- Seedlings.
29

Induction of vacuolar H+-translocating pyrophosphatase during anoxia

Carystinos, George D. January 1994 (has links)
Anaerobiosis results in low ATP levels and cytoplasmic acidosis. Pyrophosphate (PPi) may play an important role in anaerobiosis as an energy source replacing ATP, as suggested by the hypoxic induction of PPi:fructose 6-phosphate 1-phosphotransferase and sucrose synthase in preference to phosphofructokinase and invertase. Here we show that vacuolar H$ sp+$-translocating pyrophosphatase (PPase) is also strongly induced by anoxia in rice seedlings. The PPase transcript abundance is increased within the first hours of anoxia, and decreases within 2 days after the return of seedlings to air, similarly to alcohol dehydrogenase-1 (Adh1). However, tissue studies show that the highest transcript induction for PPase is in the root whereas the highest induction of Adh1 is in the shoot. Assays of enzyme specific activity indicate a 75-fold increase in PPase activity over 6 days of anoxia, while the vacuolar ATPase changes only slightly. Return of seedlings to air results in rapid disappearance of enzyme activity. Chilling stress in rice seedlings also gives rise to an increase in immunoreactive PPase enzyme, and a progressive 20-fold increase in enzyme specific activity within 6 days. Upon return to room temperature both enzyme level and specific activity decrease. In corn, hypoxic stress results in a small induction in the PPase transcript, and no increase in PPase specific activity, which, however, is constitutively high in this material. It is suggested that in both species, H$ sp+$-PPase may play an important role in hypoxia and chilling stress, not only in conserving ATP, but also in limiting cytoplasmic acidosis.
Anoxemia.
Anaerobiosis.
Rice -- Seedlings.
30

Early life stage characteristics of six Acadian conifer species: germination and seedling development in a changing climate /

Schatz, Jason D. January 2007 (has links) (PDF)
Thesis (M.S.) in Forestry--University of Maine, 2007. / Includes vita. Includes bibliographical references (leaves 183-196).
Conifers Germination Seedlings

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