scholarly journals Effect of Nitrogen Regimes on Grain Yield, Nitrogen Utilization, Radiation Use Efficiency, and Sheath Blight Disease Intensity in Super Hybrid Rice

2012 ◽  
Vol 11 (1) ◽  
pp. 134-143 ◽  
Author(s):  
Di-qin LI ◽  
Qi-yuan TANG ◽  
Yun-bo ZHANG ◽  
Jian-quan QIN ◽  
Hu LI ◽  
...  
Keyword(s):  
Grain Yield ◽  
Hybrid Rice ◽  
Sheath Blight ◽  
Nitrogen Utilization ◽  
Radiation Use Efficiency ◽  
Super Hybrid Rice ◽  
Sheath Blight Disease ◽  
Use Efficiency ◽  
Blight Disease ◽  
Radiation Use

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.

Yield potential and radiation use efficiency of “super” hybrid rice grown under subtropical conditions

2009 ◽  
Vol 114 (1) ◽  
pp. 91-98 ◽  
Author(s):  
Yunbo Zhang ◽  
Qiyuan Tang ◽  
Yingbin Zou ◽  
Diqin Li ◽  
Jianquan Qin ◽  
...  
Keyword(s):  
Hybrid Rice ◽  
Radiation Use Efficiency ◽  
Yield Potential ◽  
Super Hybrid Rice ◽  
Use Efficiency ◽  
Radiation Use

Leaf photosynthetic performance related to higher radiation use efficiency and grain yield in hybrid rice

2016 ◽  
Vol 193 ◽  
pp. 87-93 ◽  
Author(s):  
Min Huang ◽  
Shuanglü Shan ◽  
Xuefeng Zhou ◽  
Jiana Chen ◽  
Fangbo Cao ◽  
...  
Keyword(s):  
Grain Yield ◽  
Hybrid Rice ◽  
Photosynthetic Performance ◽  
Radiation Use Efficiency ◽  
Use Efficiency ◽  
Radiation Use

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 Effect of Plant Debris Removal on the Incidence of Rice Sheath Blight Disease in Bangladesh

2019 ◽  
Vol 22 (1) ◽  
pp. 83-90
Author(s):  
S Parveen ◽  
MS Hossain ◽  
MA Ali ◽  
MA Ali
Keyword(s):  
Grain Yield ◽  
Oryza Sativa L ◽  
Negative Relationship ◽  
Sheath Blight ◽  
Maturity Stage ◽  
Sheath Blight Disease ◽  
Debris Removal ◽  
Unit Increase ◽  
Yield Difference ◽  
Blight Disease

Sheath blight caused by Rhizoctonia solani is a major disease of rice (Oryza sativa L.) in Bangladesh that affects the crop in almost every season. The effect of floating debris removal on the incidence of sheath blight was assessed from the previously infected fields of three upazilas of Rajshahi district during T. Aman 2010. Each field was divided into two plots. Floating debris were removed from one plot while the other plot remained unremoved. Percent hill infection was higher in control plots from where floating debris were not removed (FDNR) than that of FDR plots from where floating debris were removed from the fields of Tanore, Godagari and Paba at 35 days after transplanting. The percent hill infection was 8.89% in FDR plots and 56.67% in FDNR in Tanore with a difference of 47.78%. Maximum 63.01% reduction in hill infection was found in Tanore between FDR and FDNR, whereas significant reduction in hill infection was found in Godagari (46.75%) at maximum tillering stage. The reduction in the incidence of sheath blight was 51.08% in Paba at maturity stage due to removal of floating debris from the field before transplanting. The average yield of three fields was 4.79 t ha-1 in FDR plot, whereas in FDNR, it was 4.18 t ha-1 in Tanore. Thus there was an yield difference of 0.61 t ha-1 in between FDR and FDNR plots. However, there was negative relationship between tiller infection and grain yield of rice. It is evident that the regression equation that the grain yield was 6.75 t ha-1 in the FDNR plots when there was no infections but infection in the tillers reduced the grain yield by 0.41 unit for every unit increase in tiller infection. Bangladesh Rice j. 2018, 22(1): 83-90

High radiation use efficiency improves yield in the recently developed elite hybrid rice Y-liangyou 900

2020 ◽  
Vol 253 ◽  
pp. 107804 ◽  
Author(s):  
Ke Liu ◽  
Rui Yang ◽  
Jun Deng ◽  
Liying Huang ◽  
Zhongwei Wei ◽  
...  
Keyword(s):  
Hybrid Rice ◽  
Radiation Use Efficiency ◽  
High Radiation ◽  
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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