scholarly journals Seasonal Changes in Ability of Nitrogen Uptake in Young Tea(Camellia sinensis L.) Plants.

1997 ◽  
pp. 1-8
Author(s):  
Kunio OKANO ◽  
Hiroaki MATSUURA ◽  
Katsuyoshi KASHIMA ◽  
Kiyoshi MATSUO
Keyword(s):  
Camellia Sinensis ◽  
Nitrogen Uptake ◽  
Seasonal Changes

Identification of Regulatory Networks and Hub Genes Controlling Nitrogen Uptake in Tea Plants [Camellia sinensis (L.) O. Kuntze]

2020 ◽  
Vol 68 (8) ◽  
pp. 2445-2456
Author(s):  
Fen Zhang ◽  
Liyuan Wang ◽  
Peixian Bai ◽  
Kang Wei ◽  
Yazhen Zhang ◽  
...  
Keyword(s):  
Camellia Sinensis ◽  
Nitrogen Uptake ◽  
Regulatory Networks ◽  
Hub Genes ◽  
Tea Plants

scholarly journals Seasonal Changes in Root Metabolic Activity and Nitrogen Uptake for Two Cultivars of Creeping Bentgrass

HortScience ◽  
2006 ◽  
Vol 41 (3) ◽  
pp. 822-826 ◽  
Author(s):  
Qingzhang Xu ◽  
Bingru Huang
Keyword(s):  
Nitrogen Uptake ◽  
Seasonal Changes ◽  
Carbon Allocation ◽  
N Uptake ◽  
Creeping Bentgrass ◽  
Dry Weight ◽  
Root Dry Weight ◽  
Turf Quality ◽  
Metabolic Activities ◽  
Nr Activity

Roots play important roles in plant responses to environmental changes. The objective of this study was to investigate seasonal changes and cultivar variation in root growth, respiratory activity, nitrogen uptake, and carbon allocation in relation to turf performance for two cultivars of creeping bentgrass [Agrostis stolonifera L. var. palustris (Huds.)] under field conditions. Two cultivars, `Penncross' and `L-93', were managed under USGA-specification putting green conditions, with daily irrigation and mowing at a 3-mm height from May to November in 1999 and 2000. Turf quality of both cultivars declined from the highest rating of 7 to 9 in May to 4 to 5 in August and September, and recovered to above 7 in October and November in both years. This corresponded to seasonal changes in root dry weight, dehydrogenase activity, nitrate reductase (NR) activity, carbon allocation to roots, and 15N uptake. Compared to Penncross, L-93 generally maintained better turf quality, as well as higher root dry weight, 15N uptake, NR activity, and carbon allocation during summer months. Previous studies often emphasize the important of a large, extensive root system. The results in the present study demonstrated that root metabolic activities followed the same seasonal pattern and cultivars variation as turf performance, and suggested that decline in root metabolic activities could be contributed to summer decline in turf quality for creeping bentgrass.

Seasonal changes in the performance of a catch crop for mitigating diffuse agricultural pollution

2013 ◽  
Vol 68 (4) ◽  
pp. 776-782 ◽  
Author(s):  
K. Kondo ◽  
K. Inoue ◽  
T. Fujiwara ◽  
S. Yamane ◽  
D. Yasutake ◽  
...  
Keyword(s):  
Nitrous Oxide ◽  
Nitrogen Uptake ◽  
Groundwater Pollution ◽  
Seasonal Changes ◽  
N2o Emission ◽  
Agricultural Pollution ◽  
Catch Crop ◽  
Crop Cultivation ◽  
Dent Corn

An in situ technology for mitigating diffuse agricultural pollution using catch crops was developed for simultaneously preventing nitrate groundwater pollution, reducing nitrous oxide (N2O) gas emissions, and removing salts from the topsoil. Seasonal changes in the performance of a catch crop were investigated using lysimeters in a full-scale greenhouse experiment with 50 d cultivation of dent corn. Catch crop cultivation significantly reduced the leached mineral nitrogen by 89–91% in summer, 87–89% in spring, and 61–82% in winter, and it also significantly reduced the N2O emission by 68–84% in summer. The amounts of nitrogen uptake by the catch crop were remarkably higher than those of leached nitrogen and N2O emission in each season. Catch crop cultivation is a promising technology for mitigating diffuse agricultural pollution.

scholarly journals Effect of Nitrogen Form and Root-zone pH on Growth and Nitrogen Uptake of Tea ( Camellia sinensis ) Plants

2007 ◽  
Vol 99 (2) ◽  
pp. 301-310 ◽  
Author(s):  
Jianyun Ruan ◽  
Jóska Gerendás ◽  
Rolf Härdter ◽  
Burkhard Sattelmacher
Keyword(s):  
Camellia Sinensis ◽  
Nitrogen Uptake ◽  
Root Zone ◽  
Nitrogen Form

Spreading the Word: Seasonal Changes Mean New Opportunities for Media Coverage

ASHA Leader ◽  
2013 ◽  
Vol 18 (7) ◽  
Keyword(s):  
Media Coverage ◽  
Seasonal Changes ◽  
Swimming Pools

Summer kicking into high gear conjures images of swimming pools and barbeques. But before you book your beach house for the weekend, think about what the changing seasons can mean for you professionally.

Seasonal changes in a ultraviolet structural colour signal in blue tits, Parus caeruleus

2002 ◽  
Vol 76 (2) ◽  
pp. 237-245 ◽  
Author(s):  
JONAS ORNBORG ◽  
STAFFAN ANDERSSON ◽  
SIMON C. GRIFFITH ◽  
BEN C. SHELDON
Keyword(s):  
Seasonal Changes ◽  
Parus Caeruleus ◽  
Structural Colour ◽  
Blue Tits ◽  
Colour Signal

Seasonal changes in nitrogen fractions of Pachysandra terminalis, a forest evergreen chamaephyte

1990 ◽  
Vol 79 (1) ◽  
pp. 7-14 ◽  
Author(s):  
Fumio Yoshie ◽  
Hirohito Arai ◽  
Hideaki Nakashima ◽  
Shoichi Kawano
Keyword(s):  
Seasonal Changes ◽  
Nitrogen Fractions
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