Sterile dynamic measurement of the in vitro nitrogen use efficiency of plantlets

2014 ◽  
pp. 77-114 ◽  
Author(s):  
Yanyou Wu ◽  
Kaiyan Zhang
Keyword(s):  
Nitrogen Use Efficiency ◽  
Dynamic Measurement ◽  
Nitrogen Use ◽  
Use Efficiency

Nitrogen Use Efficiency of Atractylodes Lancea Plantlets In Vitro under Different Inorganic Nitrogen Levels

2012 ◽  
Vol 610-613 ◽  
pp. 457-461
Author(s):  
Yan You Wu ◽  
Kuan Zhao ◽  
Ying Chen ◽  
Pang Jing ◽  
Hong Cheng Xu
Keyword(s):  
Nitrogen Source ◽  
Nitrogen Use Efficiency ◽  
Nitrogen Utilization ◽  
Nonlinear Hyperbolic Equations ◽  
Nitrogen Use ◽  
Culture Time ◽  
Atractylodes Lancea ◽  
Use Efficiency ◽  
Plantlet In Vitro

In order to determine the nitrogen use efficiency of plantlets in vitro under different nitrogen source, near infrared spectroscopy technique and image analysis technique with multi-references were used to obtain the successive information of nitrogen consumption. The Logistic and nonlinear hyperbolic equations were used for fitting the relationship of biomass of plantlet in vitro and culture time, nitrogen utilization of plantlets and culture time, and nitrogen utilization of plantlets and biomass of plantlet in vitro. The models of growth prediction, nitrogen utilization and nitrogen use efficiency of plantlets in vitro were established. The nitrogen use efficiency of Atractylodes lancea plantlets in vitro sub-cultured in different nitrogen source and levels were measured, which decreased with the increase of culture time. Ammonium (0.096 g L-1) / nitrate (0.555 g L-1) was the preferred nitrogen sources combination for the growth of Atractylodes lancea plantlets in vitro.

Nondestructive Measurement of Nitrogen Use Efficiency of Plantlets In Vitro

2011 ◽  
Vol 183-185 ◽  
pp. 287-290 ◽  
Author(s):  
Yan You Wu ◽  
Shan Lu ◽  
Yong Li Zhu ◽  
Kuan Zhao
Keyword(s):  
Nitrogen Use Efficiency ◽  
Near Infrared ◽  
Least Squares Method ◽  
Nitrogen Use ◽  
Leaf Type ◽  
Atractylodes Lancea ◽  
Analysis Technique ◽  
Use Efficiency ◽  
Partial Least Squares Method

In order to determine the content of nitrogen in culture medium at different culture time and compare the nitrogen use efficiency of various plantlets in vitro, near infrared spectroscopy technique and image analysis technique with multi-references were used to obtain the successive information of nitrogen consumption. The models between spectral information and nitrogen content in the medium were established via the partial least squares method together with artificial neural networks. They were used to predict the content of nitrogen in nine test samples. The result showed that the nitrogen use efficiency of incised leaf-type Atractylodes lancea was higher than that of long lanceolate leaf-type, and that of Orychophragmus violaceus was lower than that of Brassica napus. It suggested that the physiological function of the incised Atractylodes lancea was better than that of the long lanceolate.

ROLE OF CONSERVATION AGRICULTURE IN IMPROVING PRODUCTION WATER AND NITROGEN EFFICIENCY OF WHEAT UNDER RAINFED CONDITIONS

2020 ◽  
Vol 51 (4) ◽  
pp. 1139-1148
Author(s):  
Othman & et al.
Keyword(s):  
Crop Rotation ◽  
Nitrogen Use Efficiency ◽  
Agricultural Research ◽  
Research Work ◽  
Conservation Agriculture ◽  
Nitrogen Efficiency ◽  
Research Station ◽  
Wheat Varieties ◽  
Nitrogen Use ◽  
Use Efficiency

The research work was conducted in Izra’a Research station, which affiliated to the General Commission for Scientific Agricultural Research (GCSAR), during the growing seasons (2016 – 2017; 2017 – 2018), in order to evaluate the response of two durum wheat verities (Douma3 and Cham5) and two bread wheat varieties (Douma4 and Cham6) to Conservation Agriculture (CA) as a full package compared with Conventional Tillage system (CT) under rainfed condition using lentils (Variety Edleb3) in the applied crop rotation. The experiment was laid according to split-split RCBD with three replications. The average of biological yield, grain yield,  rainwater use efficiency and nitrogen use efficiency was significantly higher during the first growing season, under conservation agriculture in the presence of crop rotation, in the variety Douma3 (7466 kg. ha-1, and 4162kg. ha-1, 19.006 kg ha-1 mm-1,  39.62 kg N m-2respectively). The two varieties Douma3 and Cham6 are considered more responsive to conservation agriculture system in the southern region of Syria, because they recorded the highest grain yields (2561, 2385 kg ha-1 respectively) compared with the other studied varieties (Cham5 and Douma4) (1951 and 1724 kg ha-1 respectively). They also exhibited the highest values of both rainwater and nitrogen use efficiency.

Grain Yield and Nitrogen Use Efficiency of Mid-seasonIndicaRice Cultivars Applied at Different Decades

2015 ◽  
Vol 41 (3) ◽  
pp. 422 ◽  
Author(s):  
Cheng-Xin JU ◽  
Jin TAO ◽  
Xi-Yang QIAN ◽  
Jun-Fei GU ◽  
Bu-Hong ZHAO ◽  
...  
Keyword(s):  
Grain Yield ◽  
Nitrogen Use Efficiency ◽  
Nitrogen Use ◽  
Use Efficiency

Combining Ability of Traits Related to Nitrogen Use Efficiency in Eighteen Maize Inbred Lines

2014 ◽  
Vol 40 (5) ◽  
pp. 838 ◽  
Author(s):  
Chao CUI ◽  
Ju-Lin GAO ◽  
Xiao-Fang YU ◽  
Zhi-Jun SU ◽  
Zhi-Gang WANG ◽  
...  
Keyword(s):  
Nitrogen Use Efficiency ◽  
Combining Ability ◽  
Inbred Lines ◽  
Nitrogen Use ◽  
Maize Inbred Lines ◽  
Use Efficiency

Differences of Plant-Type Characteristics between Rice Cultivars with High and Low Levels in Yield and Nitrogen Use Efficiency

2010 ◽  
Vol 36 (6) ◽  
pp. 1011-1021
Author(s):  
Qing ZHANG ◽  
Chun-Yuan YIN ◽  
Hong-Cheng ZHANG ◽  
Hai-Yan WEI ◽  
Qun MA ◽  
...  
Keyword(s):  
Nitrogen Use Efficiency ◽  
Rice Cultivars ◽  
Plant Type ◽  
Nitrogen Use ◽  
Use Efficiency ◽  
Low Levels

Classification of potato cultivars by their nitrogen use efficiency

2019 ◽  
Vol 45 (1) ◽  
pp. 153
Author(s):  
Dan-Dan HE ◽  
Li-Guo JIA ◽  
Yong-Lin QIN ◽  
Ming-Shou FAN
Keyword(s):  
Nitrogen Use Efficiency ◽  
Potato Cultivars ◽  
Nitrogen Use ◽  
Use Efficiency
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