RELATIONSHIPS OF MATURITY, HEIGHT AND MORPHOLOGICAL TRAITS WITH WHOLE-PLANT YIELD AND DIGESTIBILITY OF BARLEY CULTIVARS

Eight six-rowed barley (Hordeum vulgare L.) lines were used to study the relationship of whole-plant dry matter yield (WPY), whole-plant digestible yield (WPDY) and percent in vitro organic matter digestibility (IVDOM) with plant height, maturity, grain and leaf content at the time of maximum WPY. The study was conducted at Lacombe, Alberta during 1983 and 1984. Whole-plant harvests were initiated at the 50% heading stage of individual lines and continued for seven consecutive weeks. WPY and WPDY attained maximum levels at identical harvest times after heading in all lines and years. In 1983 all lines, and in 1984, six of eight lines attained maximum WPY at the same time postheading (fourth and third harvest in 1983 and 1984, respectively). WPY and WPDY were significantly correlated with days from planting to time of maximum yield (TMY) in both years. Partial coefficients of determination from stepwise multiple regression analyses indicated that the effect of days from planting until TMY > plant height > days to heading on WPY. The effect of days from planting until TMY > plant height > IVDOM > days to heading on WPDY, and the effect leaf content was more important than any other variable on IVDOM. It was concluded that late-maturing, tall barley lines having a high leaf content were most likely to produce high WPDY and hence be advantageous for utilization as whole-plant barley forage.Key words: Barley, whole-plant, digestibility, maturity, height

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Hybrid Intensification of Plant Height in Cotton and the Relationship of Node Number and Internodal Length to the Phenomenon 1

Agronomy Journal ◽

10.2134/agronj1930.00021962002200090006x ◽

1930 ◽

Vol 22 (9) ◽

pp. 787-801 ◽

Cited By ~ 2

Author(s):

J. O. Ware

Keyword(s):

Plant Height ◽

Internodal Length ◽

Node Number ◽

Relationship Of ◽

The Relationship

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The Relationship of Width, Thickness, Volume and Load to Extension for Human Skin in Vitro

Engineering in Medicine ◽

10.1243/emed_jour_1980_009_047_02 ◽

1980 ◽

Vol 9 (4) ◽

pp. 179-183 ◽

Cited By ~ 2

Author(s):

H L Stark ◽

A Al-Haboubi

Keyword(s):

Human Skin ◽

Collagen Fibre ◽

Phase Volume ◽

Lateral Contraction ◽

Low Stiffness ◽

Phase Thickness ◽

Relationship Of ◽

The Relationship ◽

Fibre Matrix

The relationships of width, thickness, volume and load to extension for human skin in vitro are reported. The specimens tested exhibited a low stiffness phase followed by a high stiffness phase. Volume rose than fell back to the initial volume at approximately the end of the low stiffness phase, and continued on falling to a final reduction of about 20 per cent at failure. Width decreased throughout, showing a maximum rate of reduction at approximately the end of the low stiffness phase. Thickness increased at a rate which also was maximum at the end of the low stiffness phase. The specimens used were long compared with their width and thickness thus offering no constraint to lateral contraction. An interpretation of this data in respect of the behaviour of the collagen fibre matrix is postulated.

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Characterization of barley silage – maturity relationships for Central Alberta

Canadian Journal of Plant Science ◽

10.4141/cjps92-127 ◽

1992 ◽

Vol 72 (4) ◽

pp. 1009-1020 ◽

Cited By ~ 7

Author(s):

V. S. Baron ◽

A. C. Dick ◽

M. S. Wolynetz

Keyword(s):

Harvest Index ◽

Climatic Conditions ◽

Forage Yield ◽

Simple Relationship ◽

Grain Production ◽

Hordeum Vulgare L ◽

Standard Type ◽

Plant Yield ◽

Whole Plant

Production of high-quality whole-plant barley (Hordeum vulgare L.) silage requires an understanding of the relationships among whole-plant percent dry matter (WPDM), whole-plant yield parameters reflecting both whole plant and kernel maturity, grain-to-straw ratio (harvest index) and in vitro digestible organic matter (IVDOM) over the grain-filling period. Eight six-row, standard-type barley cultivars, representative of the range of maturity and stature of cultivars recommended for grain production in Alberta, were grown at Lacombe, Alberta during 1983 and 1984. Seven weekly whole-plant harvests were carried out on each cultivar beginning at heading. Fresh and dry weights on whole-plant and kernel fractions at each harvest allowed calculation of the essential parameters. Regression analyses were used to determine whether several production-related response variables could be predicted from variables such as WPDM, days after heading and cumulative growing degree days (DD) greater than 5 °C after heading. All cultivars exhibited similar trends with DD after heading for these relationships over two years of very different climatic conditions. IVDOM did not vary (P > 0.05) during the growing seasons indicating that IVDOM content cannot be a criterion for determining harvest date. Other relationships indicated that if whole-plant harvest occurred at 30% WPDM it would precede the time of maximum whole-plant yield and grain maturity by 160 and 208 DD, respectively, resulting in a loss in potential whole-plant yield of about 17%. Cultivars which produce more herbage but are too late maturing for grain production could be used to offset this yield loss and there may be a place in barley breeding programs for late-maturing, tall, strong-strawed cultivars specifically for silage production. For havest index, a large difference (8%) between years indicated that a simple relationship between harvest index and DD was not adequate to routinely predict grain content in barley silage.Key words: Silage, whole-plant maturity, barley, forage, yield

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Adrenocortical function in aging exercise-trained rats

Journal of Applied Physiology ◽

10.1152/jappl.1977.43.5.839 ◽

1977 ◽

Vol 43 (5) ◽

pp. 839-843 ◽

Cited By ~ 6

Author(s):

J. A. Severson ◽

R. D. Fell ◽

J. G. Tuig ◽

D. R. Griffith

Keyword(s):

Age Groups ◽

Plasma Corticosterone ◽

Treadmill Running ◽

Adrenocortical Function ◽

Elevated Plasma ◽

Corticosterone Concentration ◽

Relationship Of ◽

The Relationship

Plasma corticosterone concentrations and in vitro adrenal secretion of corticosterone were determined in exercise-trained rats. Rats, 100, 200, and 300 days of age, were trained for a 10-wk period by treadmill running. Following the training program, rats were subjected to an acute bout of swimming. Acute swimming elevated plasma corticosterone concentrations in all age groups. At 170 days of age, the plasma corticosterone concentration following swimming was higher in exercise-trained rats than in controls. The opposite was true of acutely swum rats at 270 and 370 days of age. Acute swimming elevated the in vitro adrenal gland response to adrenocorticotropic hormone stimulation in control rats at all ages and in trained rats at 170 days of age. The in vivo relationship of epinephrine and the pituitary adrenal system is suggested as a mechanism which could have caused this response. The relationship of secretion rates to plasma corticosterone concentrations indicated that extra-adrenal mechanisms, such as decreased turnover, were also responsible for the elevated plasma corticosterone levels observed in response to acute swimming.

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The development of the lamb with particular reference to the alimentary tract

Animal Science ◽

10.1017/s0003356100021917 ◽

1964 ◽

Vol 6 (2) ◽

pp. 169-178 ◽

Cited By ~ 14

Author(s):

R. V. Large

Keyword(s):

Body Weight ◽

Alimentary Tract ◽

Live Weight ◽

The Body ◽

Root Transformation ◽

Feeding Regimes ◽

Gut Fill ◽

Relationship Of ◽

The Relationship

1. Thirty Suffolk × Half bred lambs were slaughtered at the following ages: two twin lambs at birth and two singles and two twins at 1, 2, 3, 4, 6, 8 and 16 weeks of age.2. The following weights were recorded: live-weight immediately before slaughter; and carcass, head, skin, feet, alimentary tract, heart, liver, kidneys, lungs and trachea, and blood immediately afterwards.3. The alimentary tract was emptied and weighed in four separate parts; reticulo-rumen, omasum-abomasum, small intestine, large intestine.4. The volumes of the reticulo-rumen and the omasum-abomasum were measured by immersing in water and filling the organs with water to 2 cm. pressure.5. The in vitro digestive efficiency of rumen liquor from lambs of 1, 2, 3 and 4 weeks of age was assessed.6. Empty body weight was considered to be valuable in comparing animals of different ages or from different feeding regimes or at different times of the year because variations in gut ‘fill’ were eliminated.7. There were no differences between singles and twins in the relationship of the fresh weights of the parts of the body to empty body weight, except that development of the liver and the blood was rather slower for singles.8. Little evidence was found of a difference in rate of development of the alimentary tract between singles an d twins, although the log an d square root transformation suggested a possible difference in reticulo-rumen size in favour of twins, significant at the 5% level.

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Differential Effect of Irradiance and Nutrient Nitrate on the Relationship of in Vivo and in Vitro Nitrate Reductase Assay in Chlorophyllous Tissues

PLANT PHYSIOLOGY ◽

10.1104/pp.59.4.535 ◽

1977 ◽

Vol 59 (4) ◽

pp. 535-539 ◽

Cited By ~ 20

Author(s):

Richard Wyn Jones ◽

Robert W. Sheard

Keyword(s):

Nitrate Reductase ◽

Differential Effect ◽

Nitrate Reductase Assay ◽

Relationship Of ◽

The Relationship

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Higher gestational weight gain and lower serum estradiol levels on the day of human chorionic gonadotropin administration are associated with increased risk of preeclampsia after in vitro fertilization

10.21203/rs.2.21456/v1 ◽

2020 ◽

Author(s):

Yu-Chen Chen ◽

Yun-Ju Lai ◽

Yu-Ting Su ◽

Ni-Chin Tsai ◽

Kuo-Chung Lan

Keyword(s):

Weight Gain ◽

In Vitro Fertilization ◽

Gestational Weight Gain ◽

Chorionic Gonadotropin ◽

Serum Estradiol ◽

Vitro Fertilization ◽

Gestational Weight ◽

Relationship Of ◽

The Relationship

Abstract Background Very few previous studies have examined the effect of endocrine parameters during ART on preeclampsia. Moreover, there is little known about the relationship of steroid hormone levels on development of the placenta. The purpose of this study is to assess the association of preeclampsia with serum estradiol (E2) and progesterone (P4) levels on the day of human chorionic gonadotropin (hCG) administration during controlled ovarian hyperstimulation (COH) for in vitro fertilization/intracytoplasmic sperm injection (IVF/ICSI). Methods This was a hospital-based cohort study using clinical data from the Kaohsiung Chang Gung Memorial Hospital Obstetric and Neonatal Database (KCGMHOND) from Jan 1, 2001 to December 1, 2018. Eligible women underwent at least one autologous IVF/ICSI cycle and had a live-born infant with a gestational age (GA) of more than 20 weeks. Results A total of 622 women who had live births after fresh IVF/ICSI-ET during the study period met our inclusion criteria. Twenty-eight women (4.5%) met the diagnostic criteria for preeclampsia. However, women in the preeclampsia group had a significantly higher body mass index (22 vs. 24, p =0.05), body weight at delivery (70.0 vs. 80.5 kg, p <0.001) and gestational weight gain (13.0 vs. 19.6 kg, p =0.002) and had lower use of ICSI (29.9% vs. 10.7%, p =0.021). Logistic regression analysis of the relationship of patient and treatment characteristics with preeclampsia. The crude ORs indicated that young female age >34, not using ICSI, E2 peak <1200 pg/mL and gestational weight gain >20 kg were associated with preeclampsia. After adjustment for confounding, the only factors that remained significant were E2 peak <1200 pg/mL (aOR = 4.634, 95% CI = 1.061 to 20.222), and gestational weight gain >20 kg (aOR: 13.601, 95% CI: 3.784, 48.880). Conclusions For women receiving IVF/ICSI, lower estradiol hormone levels on the day of hCG administration and higher pregnancy weight gain are related with subsequent preeclampsia.

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Voting Behavior on the United States Courts of Appeals Revisited

American Political Science Review ◽

10.2307/1959082 ◽

1975 ◽

Vol 69 (2) ◽

pp. 491-506 ◽

Cited By ~ 118

Author(s):

Sheldon Goldman

Keyword(s):

United States ◽

Voting Behavior ◽

Political Liberalism ◽

The United States ◽

Stepwise Multiple Regression ◽

Courts Of Appeals ◽

Time Period ◽

Appeals Courts ◽

Relationship Of ◽

The Relationship

In an earlier study of voting behavior of U.S. appeals courts judges, attitudinal patterns were investigated along with an analysis of the relationship of judges' backgrounds to their decisions. In this revisit, the earlier findings were treated as hypotheses and tested with a new case population covering a subsequent and longer time period. In all, 2,115 cases decided nonunanimously were coded on one or more issues. Most cases could be classified under ten broad issue categories which were then utilized for most of the analyses. Although the research design was similar to that of the earlier study, a wider variety of methods was employed including nonparametric and parametric intercorrelations of voting behavior on the ten issues and stepwise multiple regression and partial correla-tion analyses of seven background variables and their relationships to voting behavior on the issues. The principal findings were similar to those found earlier but it was possible to map voting behavior with some-what more precision and to uncover some unexpected relationships such as those concerning the potency of the age variable particularly for voting on political liberalism issues.

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On the Nature of Castle’s Hemopoietic Factor

Blood ◽

10.1182/blood.v6.12.1234.1234 ◽

1951 ◽

Vol 6 (12) ◽

pp. 1234-1239 ◽

Cited By ~ 30

Author(s):

SHEILA T. CALLENDER ◽

L. G. LAJTHA

Keyword(s):

Vitamin B12 ◽

Gastric Juice ◽

Intrinsic Factor ◽

Normal Serum ◽

Relationship Of ◽

The Relationship

Abstract 1. Normal gastric juice (intrinsic factor) and vitamin B12 together form a thermolabile hemopoietic factor which ripens megaloblasts in vitro, both gastric juice and B12 alone being inactive. 2. The hemopoietic factor in normal serum which ripens megaloblasts in vitro also appears to be thermolabile, heating to 56 C. for 2 hours destroying some of its activity. 3. The relationship of these factors is discussed and an extra-gastric as well as a gastric source of intrinsic factor is postulated.

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