The Influence of Initial Salt Status on Absorption of Rubidium by Corn Root Segments of Two Stages of Development

1967 ◽  
Vol 94 (6) ◽  
pp. 501 ◽  
Author(s):  
Dana M. Venrick ◽  
Richard C. Smith
Keyword(s):  
Stages Of Development ◽  
Corn Root ◽  
Root Segments ◽  
Initial Salt ◽  
Two Stages

Isoleucine Need of Swine at Two Stages of Development

1963 ◽  
Vol 22 (4) ◽  
pp. 1093-1096 ◽  
Author(s):  
D. E. Becker ◽  
I. D. Smith ◽  
S. W. Terrill ◽  
A. H. Jensen ◽  
H. W. Norton
Keyword(s):  
Stages Of Development ◽  
Two Stages

scholarly journals Contrasted responses to carbohydrate limitation in tomato fruit at two stages of development

2002 ◽  
Vol 25 (12) ◽  
pp. 1639-1649 ◽  
Author(s):  
P. BALDET ◽  
C. DEVAUX ◽  
C. CHEVALIER ◽  
R. BROUQUISSE ◽  
D. JUST ◽  
...  
Keyword(s):  
Tomato Fruit ◽  
Stages Of Development ◽  
Two Stages

scholarly journals The blood-corpuscle considered in its different phases of deve­lopment in the animal series

1851 ◽  
Vol 5 ◽  
pp. 558-559
Keyword(s):  
Blood Cell ◽  
Granule Cells ◽  
Blood Corpuscle ◽  
Stages Of Development ◽  
Third Phase ◽  
A Cell ◽  
Last Stage ◽  
Two Stages ◽  
Oval Shape ◽  
Solvent Action

This paper is divided into three parts: the first relating to the blood-corpuscles of the Vertebrata ; the second to those of the In-vertebrata ; and the last to a comparison between the two. He first describes the microscopic appearances of these corpuscles in differ­ent classes of vertebrate animals, beginning with the skate and the frog, and proceeding to birds and mammifera; first in their early embryonic state, and next in the subsequent periods of their growth. He finds in oviparous vertebrata generally, four principal forms of corpuscles. These he distinguishes as the phases, first of the gra­nule blood-cell , which he describes as a cell filled with granules, dis­closing by the solvent action of dilute acetic acid on these granules a vesicular, or as the author terms it, a “ cellœform ” nucleus. These granule cells appear under two stages of development, namely, the coarsely granulous stage and the finely granulous stage. The se­cond phase is that of the nucleolated blood-cell , oval in shape, con­taining a vesicular (or “cellæform”) nucleus, and red-coloured mat­ter. These cells likewise appear under two stages of development; colourless in the first and coloured in the second, in which last stage it constitutes the red corpuscle. In the early mammiferous embryo, he finds, in addition to the former, a third phase, that of free vesicu­lar nucleus , exhibiting, like the nucleolated cell, the colourless and the coloured stages. On examining the corpuscles of the lymph of vertebrate animals, the author finds them in all the classes to be identical in structure with their blood-corpuscles, and differing only in the inferior degree of coloration attending their last stage. In the oviparous classes, he observes that the nucleolated are more numerous than the granule cells, while in the mammifera the latter are predominant, which is the reverse of the proportion in which they exist in the blood of these animals. He finds that some of the nucleolated cells of the contents of the thoracic duct exhibit a marked degree of coloration, and have an oval shape; thus offering a resemblance to the blood of the early embryonic state.

COLD HARDENING AND COLD HARDINESS OF YOUNG WINTER RYE SEEDLINGS AS AFFECTED BY STAGE OF DEVELOPMENT AND TEMPERATURE

1960 ◽  
Vol 38 (3) ◽  
pp. 353-363 ◽  
Author(s):  
J. E. Andrews
Keyword(s):  
Winter Wheat ◽  
Cold Hardiness ◽  
Rapid Decrease ◽  
Genetic Differences ◽  
Cold Hardening ◽  
Winter Rye ◽  
Stages Of Development ◽  
Stage Of Development ◽  
High Level ◽  
Two Stages

Young winter rye seedlings, grown and hardened at 1° or 1.5 °C in the dark, developed a high level of cold hardiness at two stages prior to emergence of the first leaf. The first maximum occurred when coleoptiles were less than about 1 mm in length and was followed by a decrease in hardiness. A second and higher maximum occurred when coleoptiles were about 15–30 mm in length (5 weeks at 1.5 °C; 7 weeks at 1 °C) and it was followed by a rapid decrease in hardiness beginning at about the time the leaf broke through the coleoptile. Genetic differences corresponding with those obtained in the field were established by hardening seedlings for 7 weeks at 1 °C and exposure to −15 °C for 16 hours or by hardening for 5 weeks at 1.5 °C and exposure to −14 °C for 16 hours. The use of a lower (−4 °C) hardening temperature resulted in a large increase in cold hardiness at the younger stages of development but little or no increase where seedlings had already reached a maximum of hardiness from exposure to 1.5 °C for 5 weeks. Satisfactory genetic differences were not determined by exposure to −14 °C for 16 hours after hardening at −4 °C. In general the response to hardening of young winter rye seedlings was similar to that found with winter wheat.

Studies in the Structure of Attic Society: 1. Demotionidai

1931 ◽  
Vol 25 (3-4) ◽  
pp. 129-143 ◽  
Author(s):  
H. T. Wade-Gery
Keyword(s):  
The Body ◽  
Whole Body ◽  
Stages Of Development ◽  
Two Stages

In an earlier paper on this topic, ‘Eupatridai, Archons, and Areopagus,'3 I was primarily concerned to recover the views of Aristotle, as expressed in the ‘Αθ. πολ., on such elements of Attic Society as Eupatridai, Gennetai, etc. I sought to establish that to him at least these two were not identical: that, more precisely, he recorded two stages of development—(a) ‘Ion’: in whose day the whole body of Athenians was composed of Gennetai, while Eupatridai had not yet been created.(b) ‘Theseus’: who created the Eupatridai—distinguishing them, as a Third Estate, from those two Estates (Georgoi and Demiourgoi) which had hitherto, since Ion, composed the body of Athenians.

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