Diurnal Fluctuations in Photochemical Activities of Chloroplasts in Field Grown Cyamopsis Tetragonoloba Seedlings

1999 ◽  
Vol 36 (1-2) ◽  
Author(s):  
K. Lingakumar ◽  
G. Kulandaivelu
2018 ◽  
Vol 53 (6) ◽  
pp. 1285-1293
Author(s):  
И.Г. КУЗНЕЦОВА ◽  
◽  
А.Л. САЗАНОВА ◽  
В.И. САФРОНОВА ◽  
Ж.П. ПОПОВА ◽  
...  

2018 ◽  
Vol 51 (2) ◽  
Author(s):  
Sohail Ahmad Jan ◽  
Zabta Khan Shinwari ◽  
Malik Ashiq Rabbani ◽  
Ali Talha Khalil ◽  
Azhar Hussain Shah

1985 ◽  
Vol 105 (1) ◽  
pp. 1-7 ◽  
Author(s):  
R. De ◽  
M. A. Salim Khan ◽  
M. S. Katti ◽  
V. Raja

SUMMARYExperiments made with winter fodder crops, lucerne (Medicago sativa), berseem (Trifolium alexandrinum) and oats (Avena sativa) and summer fodder crops, cow pea (Vigna unguiculata), guar (Cyamopsis tetragonoloba), sunhemp (Crotolaria juncea) and pearl millet (Pennisetum americanum) showed that a sequential crop of Sudan grass yielded more after the legumes than after the cereal fodders, oats or pearl millet. The legume advantage was noted in the crop not given fertilizers but also when Sudan grass was given N fertilizer. The yield increase in Sudan grass grown after legumes was equivalent to 32–60 kg fertilizer N/ha applied to Sudan grass following pearl millet.After harvesting the legumes more available N and NO3-N was present in the soil and the apparent recovery of fertilizer N by a subsequent crop was increased by the legume.


2014 ◽  
Vol 2014 ◽  
pp. 1-9 ◽  
Author(s):  
Clément Bougard ◽  
Damien Davenne

The underlying processes responsible for the differences between morning and afternoon measurements of postural control have not yet been clearly identified. This study was conducted to specify the role played by vestibular, visual, and somatosensory inputs in postural balance and their link with the diurnal fluctuations of body temperature and vigilance level. Nineteen healthy male subjects (mean age: 20.5 ± 1.3 years) participated in test sessions at 6:00 a.m. and 6:00 p.m. after a normal night’s sleep. Temperature was measured before the subjects completed a sign cancellation test and a postural control evaluation with eyes both open and closed. Our results confirmed that postural control improved throughout the day according to the circadian rhythm of body temperature and sleepiness/vigilance. The path length as a function of surface ratio increased between 6:00 a.m. and 6:00 p.m. This is due to a decrease in the centre-of-pressure surface area, which is associated with an increase in path length. Romberg’s index did not change throughout the day; however, the spectral analysis (fast Fourier transform) of the centre-of-pressure excursions (in anteroposterior and mediolateral directions) indicated that diurnal fluctuations in postural control may occur via changes in the different processes responsible for readjustment via muscle contractions.


1981 ◽  
Vol 21 (3) ◽  
pp. 177-179
Author(s):  
H. M. Abdel-Fattah ◽  
A. H. Moubasher ◽  
M. A. Swelim
Keyword(s):  

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