Radiation use efficiency, biomass production and grain yield of heat tolerant summer maize (Zea mays L.) hybrids in subtropical environment

2021 ◽  
Vol 50 (1) ◽  
pp. 171-177
Author(s):  
K Subrahmanyam ◽  
MR Umesh ◽  
N Ananda ◽  
Prakash H Kuchanur ◽  
MY Ajayakumar ◽  
...  
Keyword(s):  
Grain Yield ◽  
Biomass Production ◽  
Radiation Use Efficiency ◽  
Mild Stress ◽  
Summer Maize ◽  
Yield Attributes ◽  
Irrigation Regimes ◽  
Use Efficiency ◽  
Heat Tolerant ◽  
Radiation Use

Radiation use efficiency (RUE), heat use efficiency (HUE), biomass production and grain yield of contrasting heat tolerant summer maize hybrids and irrigation regimes during hot summer in subtropics of India were assessed. Experiment was conducted with RCRMH-1, RCRMH-2 and Arjun hybrids under well-watered based on 1.0 IW/CPE (I1), mild stress at 0.75 IW/CPE (I2) and severe stress at 0.5 IW/CPE (I3). Results indicated that RCRMH-2 outyielded 13.3 and 26.4% over RCRMH1 and Arjun, respectively. In well-watered (I1) plots all the hybrids performed better than other irrigation regimes I2 and I3. Among hybrids RCRMH-2 showed lower grain yield reduction under water stress condition. While RUE of RCRMH-2 under I1, I2 and I3 were 1.93, 1.72 and 1.53 g/MJ, respectively. It also showed higher biomass production, LAI and HUE over rest of the hybrids. Radiation, water and heat use efficiencies, yield attributes and yield were higher in January sown plants.

scholarly journals Biomass accumulation and radiation use efficiency of winter wheat under deficit irrigation regimes

2009 ◽  
Vol 55 (No. 2) ◽  
pp. 85-91 ◽  
Author(s):  
Q. Li ◽  
M. Liu ◽  
J. Zhang ◽  
B. Dong ◽  
Q. Bai
Keyword(s):  
Winter Wheat ◽  
Grain Yield ◽  
Deficit Irrigation ◽  
Biomass Accumulation ◽  
Growing Season ◽  
Radiation Use Efficiency ◽  
Area Index ◽  
Irrigation Regimes ◽  
Use Efficiency ◽  
Radiation Use

To better understand the potential for improving biomass accumulation and radiation use efficiency (RUE) of winter wheat under deficit irrigation regimes, in 2006–2007 and 2007–2008, an experiment was conducted at the Luancheng Experimental Station of Chinese Academy of Science to study the effects of deficit irrigation regimes on the photosynthetic active radiation (PAR), biomass accumulation, grain yield, and RUE of winter wheat. In this experiment, field experiment involving winter wheat with 1, 2 and 3 irrigation applications at sowing, jointing, or heading stages was conducted, and total irrigation water was all controlled at 120 mm. The results indicate that irrigation 2 or 3 times could help to increase the PAR capture ratio in the later growing season of winter wheat; this result was mainly due to the changes in the vertical distributions of leaf area index (LAI) and a significant increase of the LAI at 0–20 cm above the ground surface (LSD, <i>P</i> < 0.05). Compared with irrigation only once during the growing season of winter wheat, irrigation 2 times significantly (LSD, <i>P</i> < 0.05) increased aboveground dry matter at maturity; irrigation at sowing and heading or jointing and heading stages significantly (LSD, <i>P</i> < 0.05) improved the grain yield, and irrigation at jointing and heading stages provided the highest RUE (0.56 g/mol). Combining the grain yield and RUE, it can be concluded that irrigation at jointing and heading stages has higher grain yield and RUE, which will offer a sound measurement for developing deficit irrigation regimes in North China.

scholarly journals Effect of Irrigation to Winter Wheat on the Radiation Use Efficiency and Yield of Summer Maize in a Double Cropping System

2012 ◽  
Vol 2012 ◽  
pp. 1-6
Author(s):  
Li Quanqi ◽  
Chen Yuhai ◽  
Zhou Xunbo ◽  
Yu Songlie ◽  
Guo Changcheng
Keyword(s):  
Winter Wheat ◽  
Grain Yield ◽  
Growing Season ◽  
Radiation Use Efficiency ◽  
Agricultural Practice ◽  
Summer Maize ◽  
Capture Ratio ◽  
Double Cropping ◽  
Use Efficiency ◽  
Radiation Use

In north China, double cropping of winter wheat and summer maize is a widely adopted agricultural practice, and irrigation is required to obtain a high yield from winter wheat, which results in rapid aquifer depletion. In this experiment conducted in 2001-2002, 2002-2003, and 2004-2005, we studied the effects of irrigation regimes during specific winter wheat growing stage with winter wheat and summer maize double cropping systems; we measured soil moisture before sowing (SMBS), the photosynthetic active radiation (PAR) capture ratio, grain yield, and the radiation use efficiency (RUE) of summer maize. During the winter wheat growing season, irrigation was applied at the jointing, heading, or milking stage, respectively. The results showed that increased amounts of irrigation and irrigation later in the winter wheat growing season improved SMBS for summer maize. The PAR capture ratio significantly (LSD,P<0.05) increased with increased SMBS, primarily in the 3 spikes leaves. With improved SMBS, both the grain yield and RUE increased in all the treatments. These results indicate that winter wheat should be irrigated in later stages to achieve reasonable grain yield for both crops.

SEED-ORIENTED PLANTING IMPROVES LIGHT INTERCEPTION, RADIATION USE EFFICIENCY AND GRAIN YIELD OF MAIZE (Zea mays L.)

2016 ◽  
Vol 53 (2) ◽  
pp. 210-225 ◽  
Author(s):  
GUILHERME M. TORRES ◽  
ADRIAN KOLLER ◽  
RANDY TAYLOR ◽  
WILLIAM R. RAUN
Keyword(s):  
Grain Yield ◽  
Canopy Structure ◽  
Maize Yield ◽  
Light Interception ◽  
Plant Population ◽  
Radiation Use Efficiency ◽  
Seed Placement ◽  
Use Efficiency ◽  
The Difference ◽  
Radiation Use

SUMMARYSeed-oriented planting provides a manner to influence canopy structure. The purpose of this research was to improve maize light interception using seed-oriented planting to manipulate leaf azimuth across the row thereby minimizing leaf overlap. To achieve leaf azimuths oriented preferentially across the row, seeds were planted: (i) upright with caryopsis pointed down, parallel to the row (upright); and (ii) laying flat, embryo up, perpendicular to the row (flat). These treatments were compared to conventionally planted seeds with resulting random leaf azimuth distribution. Seed orientation effects were contrasted with three levels of plant population and two levels of hybrid specific canopy structures. Increased plant population resulted in greater light interception but yield tended to decrease as plant population increased. The planophile hybrid produced consistently greater yields than the erectophile hybrid. The difference between planophile and erectophile hybrids ranged from 283 to 903 kg ha−1. Overall, mean grain yield for upright and flat seed placement increased by 351 and 463 kg ha−1 compared to random seed placement. Greater cumulative intercepted photosynthetically active radiation (CIPAR) was found for oriented seeds rather than random-oriented seeds. At physiological maturity upright, flat and random-oriented seeds intercepted 555, 525 and 521 MJ m−2 of PAR, respectively. Maize yield responded positively to improved light interception and better radiation use efficiency. Under irrigated conditions, precision planting of maize increased yield by 9 to 14% compared to random-oriented seeds.

scholarly journals Solar radiation use efficiency by soybean under field conditions in the Amazon region

2009 ◽  
Vol 44 (10) ◽  
pp. 1211-1218 ◽  
Author(s):  
Paulo Jorge de Oliveira Ponte de Souza ◽  
Aristides Ribeiro ◽  
Edson José Paulino da Rocha ◽  
José Renato Bouça Farias ◽  
Renata Silva Loureiro ◽  
...  
Keyword(s):  
Solar Radiation ◽  
Leaf Area ◽  
Biomass Production ◽  
Amazon Region ◽  
Field Conditions ◽  
Radiation Use Efficiency ◽  
Area Index ◽  
Natural Field ◽  
Use Efficiency ◽  
Radiation Use

The objective of this work was to evaluate the efficiency of soybean (Glycine max) in intercepting and using solar radiation under natural field conditions, in the Amazon region, Brazil. The meteorological data and the values of soybean growth and leaf area were obtained from an agrometeorological experiment carried out in Paragominas, Pará state, during 2007 and 2008. The radiation use efficiency (RUE) was obtained from the ratio between the above-ground biomass production and the intercepted photosynthetically active radiation (PAR) accumulated to 99 and 95 days after sowing, in 2007 and 2008, respectively. Climatic conditions during the experiment were very distinct, with reduction in rainfall in 2007, which began during the soybean mid-cycle, due to the El Niño phenomenon. An important reduction in the leaf area index and biomass production was observed during 2007. Under natural field conditions in the Amazon region, the values of RUE were 1.46 and 1.99 g MJ-1 PAR in the 2007 and 2008 experiments, respectively. The probable reason for the differences found between these years might be associated to the water restriction in 2007 coupled with the higher air temperature and vapor pressure deficit, and also to the increase in the fraction of diffuse radiation that reached the land surface in 2008.

scholarly journals Higher Radiation Use Efficiency Produces Greater Biomass Before Heading and Grain Yield in Super Hybrid Rice

Agronomy ◽  
2020 ◽  
Vol 10 (2) ◽  
pp. 209
Author(s):  
Yonghui Pan ◽  
Shuai Gao ◽  
Kailiu Xie ◽  
Zhifeng Lu ◽  
Xusheng Meng ◽  
...  
Keyword(s):  
Grain Yield ◽  
Hybrid Rice ◽  
Rice Cultivar ◽  
Radiation Use Efficiency ◽  
Above Ground Biomass ◽  
Radiation Interception ◽  
Super Hybrid Rice ◽  
Use Efficiency ◽  
Fertilizer Rates ◽  
Radiation Use

To reveal the physiological mechanism underlying the yield advantage of super hybrid rice compared with inbred super rice, a super hybrid rice cultivar Yliangyou 3218 (YLY) and an inbred super rice cultivar Zhendao 11 (ZD) were field grown under five nitrogen (N) fertilizer rates in 2016 and 2017. The average grain yield of YLY across nitrogen fertilizer rates was 10.1 t ha−1 in 2016 and 9.7 t ha−1 in 2017, 29.6% and 21.3% higher than that of ZD in 2016 and 2017, respectively. YLY showed higher above-ground biomass accumulation, especially growth before heading, which was mainly due to its faster green leaf area index (GLAI) formation and greater maximum GLAI (GLAImax). The daily radiation interception (RIdaily) was 15.0% higher in YLY than ZD, but the accumulated radiation interception (RIacc) before heading showed little difference between them because ZD had a longer growth duration. The radiation use efficiency (RUE) of YLY before heading was 54.7% higher than that of ZD (YLY, 2.12 g MJ−1; ZD, 1.37 g MJ−1). Our result demonstrated that the yield advantage of YLY was due to its higher above-ground biomass before heading, which was mainly achieved by its improvement in RUE rather than radiation interception.

Radiation Use Efficiency and Biomass Production in Soybean at Different Plant Population Densities

Crop Science ◽  
2002 ◽  
Vol 42 (1) ◽  
pp. 172-177 ◽  
Author(s):  
Larry C. Purcell ◽  
Rosalind A. Ball ◽  
J. D. Reaper ◽  
Earl D. Vories
Keyword(s):  
Biomass Production ◽  
Plant Population ◽  
Radiation Use Efficiency ◽  
Population Densities ◽  
Use Efficiency ◽  
Radiation Use

scholarly journals Radiation use efficiency, N accumulation and biomass production of high-yielding rice in aerobic culture

2010 ◽  
Vol 117 (1) ◽  
pp. 81-89 ◽  
Author(s):  
Keisuke Katsura ◽  
Midori Okami ◽  
Hiroaki Mizunuma ◽  
Yoichiro Kato
Keyword(s):  
Biomass Production ◽  
Radiation Use Efficiency ◽  
N Accumulation ◽  
Aerobic Culture ◽  
Use Efficiency ◽  
Radiation Use

scholarly journals SEED-ORIENTED PLANTING IMRPROVES LIGHT INTERCEPTION, RADIATION USE EFFICIENCY AND GRAIN YIELD OF MAIZE (Zea mays L.) – CORRIGENDUM

2016 ◽  
Vol 53 (2) ◽  
pp. 226-226
Author(s):  
GUILHERME M. TORRES ◽  
ADRIAN KOLLER ◽  
RANDY TAYLOR ◽  
WILLIAM R. RAUN
Keyword(s):  
Zea Mays ◽  
Grain Yield ◽  
Zea Mays L ◽  
Light Interception ◽  
Radiation Use Efficiency ◽  
Use Efficiency ◽  
Radiation Use

This article was published with an incorrect Title. The correct title should read:‘SEED-ORIENTED PLANTING IMPROVES LIGHT INTERCEPTION, RADIATION USE EFFICIENCY AND GRAIN YIELD OF MAIZE (Zea mays L.)’The original article has been rectified with the correct title and a footnote detailing the error has been inserted in the online PDF and HTML copies.

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