Role of Nitrate Reductase for N Assimilation During the Grain Filling Period of Been Seeds (Lablab purureus L.)

2003 ◽  
Vol 6 (5) ◽  
pp. 472-477
Author(s):  
Shaha Ranajit Ku
Keyword(s):  
Nitrate Reductase ◽  
Grain Filling ◽  
N Assimilation ◽  
Grain Filling Period

The Role of Fertilizer Management in the Development and Expression of Crop Drought Stress in Cereals under Mediterranean Environmental Conditions

1985 ◽  
Vol 21 (3) ◽  
pp. 209-222 ◽  
Author(s):  
J. D. H. Keatinge ◽  
P. J. H. Neate ◽  
K. D. Shepherd
Keyword(s):  
Drought Stress ◽  
Environmental Conditions ◽  
Crop Yields ◽  
Grain Filling ◽  
Fertilizer Management ◽  
Fertilizer N ◽  
Kernel Weights ◽  
Grain Filling Period ◽  
Heavy Nitrogen

SUMMARYThe development and influence of crop drought stress was examined in winter-planted small-grain cereals under Mediterranean environmental conditions. In two average or wetter than average years crop drought stress in the grain-filling period was greatly exacerbated by the addition of fertilizer (N and P) and this usually resulted in significantly lower kernel weights. Yet this reduction was not so substantial as to seriously affect crop yields. Total grain yields were largest in treatments receiving fertilizer, due to greater spike numbers and numbers of kernels per spike. But heavy nitrogen applications may promote the risk of a large proportion of small or shrivelled grains in a dry year.

Regulation of Rubisco activity during grain-fill in maize: possible role of Rubisco activase

1997 ◽  
Vol 128 (2) ◽  
pp. 155-161 ◽  
Author(s):  
E. MARTÍNEZ-BARAJAS ◽  
J. MOLINA-GALÁN ◽  
E. SÁNCHEZ de JIMÉNEZ
Keyword(s):  
Soluble Protein ◽  
Grain Filling ◽  
Rubisco Activase ◽  
Middle Part ◽  
Ribulose Bisphosphate Carboxylase ◽  
Rubisco Activity ◽  
Leaf Extracts ◽  
Bisphosphate Carboxylase ◽  
Grain Filling Period

Levels of ribulose bisphosphate carboxylase (Rubisco) and Rubisco activase were compared in leaves above the ear in two genetically related populations (Z0 and Z20) of maize (Zea mays L.). Z20 was obtained from Z0 after twenty agronomic selection cycles for grain yield improvement (c. 90% above Z0). Plants were cultivated in the highlands of Mexico and leaves were sampled weekly during the grain-filling period. Chlorophyll, soluble protein and Rubisco activity were measured. Chlorophyll and soluble protein content slowly decreased during this period, the former faster than the latter, with no significant differences between populations. During the first 40 days after anthesis, Rubisco activity was significantly greater in the high-yielding population (Z20), although Western blot analysis of Rubisco showed similar values for both populations within this period. However, the same analysis for Rubisco activase indicated a greater amount of this protein in the higher-yielding population (Z20) than the original one (Z0) during the early and middle part of the grain-filling period. The addition of Rubisco activase and an ATP-generating system to Z0 leaf extracts resulted in increased Rubisco activity. It was concluded that during grain-fill in maize, the level of Rubisco activase has a regulatory effect on Rubisco activity expression.

Influence of Canopy Temperature (CT) During Grain-Filling Period on Yield and Effects of Several CT-Associated SSR Loci

2015 ◽  
Vol 41 (4) ◽  
pp. 548 ◽  
Author(s):  
Dong-Ling ZHANG ◽  
Hong-Na ZHANG ◽  
Chen-Yang HAO ◽  
Lan-Fen WANG ◽  
Tian LI ◽  
...  
Keyword(s):  
Canopy Temperature ◽  
Grain Filling ◽  
Ssr Loci ◽  
Grain Filling Period

Effect of PASP-KT-NAA on Leaf Senescence and Grain Filling Rate during the Grain-Filling Period in Different Temperature Zones

2013 ◽  
Vol 38 (9) ◽  
pp. 1698-1709
Author(s):  
Tian-Jun XU ◽  
Zhi-Qiang DONG ◽  
Jiao GAO ◽  
Chuan-Xiao CHEN ◽  
Liu JIAO ◽  
...  
Keyword(s):  
Leaf Senescence ◽  
Grain Filling ◽  
Filling Rate ◽  
Grain Filling Rate ◽  
Grain Filling Period

scholarly journals Essential Role of Sugar Transporter OsSWEET11 During the Early Stage of Rice Grain Filling

2017 ◽  
Vol 58 (5) ◽  
pp. 863-873 ◽  
Author(s):  
Lai Ma ◽  
Dechun Zhang ◽  
Qisong Miao ◽  
Jing Yang ◽  
Yuanhu Xuan ◽  
...  
Keyword(s):  
Essential Role ◽  
Early Stage ◽  
Grain Filling ◽  
Rice Grain ◽  
Sugar Transporter

What is the role of the nitrate reductase (euknr) gene in fungi that live in nitrate-free environments? A targeted gene KO study in Ampelomyces mycoparasites

2021 ◽  
Author(s):  
Márk Z. Németh ◽  
Guofen Li ◽  
Diána Seress ◽  
Alexandra Pintye ◽  
Orsolya Molnár ◽  
...  
Keyword(s):  
Nitrate Reductase
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