3-Deoxy-d-arabino-heptulosonate 7-phosphate synthase is regulated for the accumulation of polysaccharide-linked hydroxycinnamoyl esters in rice (Oryza sativa L.) internode cell walls

2006 ◽  
Vol 25 (7) ◽  
pp. 676-688 ◽  
Author(s):  
Kanna Sato ◽  
Kohei Mase ◽  
Yoshimi Nakano ◽  
Nobuyuki Nishikubo ◽  
Rika Sugita ◽  
...  
Keyword(s):  
Oryza Sativa ◽  
Cell Walls ◽  
Oryza Sativa L ◽  
Phosphate Synthase

A potential retardant for lodging resistance in direct seeded rice (Oryza sativa L.)

2012 ◽  
Vol 92 (1) ◽  
pp. 13-18 ◽  
Author(s):  
Uma Rani Sinniah ◽  
Sri Wahyuni ◽  
Bambang Surya Adji Syahputra ◽  
Saikat Gantait
Keyword(s):  
Oryza Sativa ◽  
Cell Walls ◽  
Foliar Application ◽  
Oryza Sativa L ◽  
Parenchyma Cell ◽  
Growth Retardant ◽  
Lodging Resistance ◽  
Bending Resistance ◽  
Stem Bending ◽  
Direct Seeded

Sinniah, U. R., Wahyuni, S., Syahputra, B. S. A. and Gantait, S. 2012. A potential retardant for lodging resistance in direct seeded rice ( Oryza sativa L.). Can. J. Plant Sci. 92: 13–18. Yield losses in rice are heavy, particularly when lodging occurs after heading. A major contributing factor towards lodging is the tall phenotypic characteristic of the plant. In rice, application of growth retardant can reduce plant height by means of internode retardation. In this study, paclobutrazol at 50, 100 and 200 ppm was applied as a foliar application at panicle initiation on MR 219 and MR 84 cultivars and its effects on growth, lodging resistance and yield were studied. Foliar-applied growth retardant inhibited plant growth and retarded internode and culm length but increased culm diameter. All treated plants had higher bending resistance compared with the control. A significant positive correlation was observed between increased culm diameter and stem bending resistance (r=0.885). Histological studies showed greater compaction of parenchyma cells with thickening of parenchyma cell walls. Treatments with either 50 or 100 ppm paclobutrazol gave significant retardation of internodes and gave higher stem bending resistance with significant increase in yield.

scholarly journals Effects of lanthanum on growth and accumulation in roots of rice seedlings  

2013 ◽  
Vol 59 (No. 5) ◽  
pp. 196-200 ◽  
Author(s):  
D. Liu ◽  
X. Wang ◽  
X. Zhang ◽  
Z. Gao
Keyword(s):  
Oryza Sativa ◽  
Electron Microscope ◽  
Nutritional Status ◽  
Transmission Electron Microscope ◽  
Cell Walls ◽  
Oryza Sativa L ◽  
Rice Seedlings ◽  
Rice Roots ◽  
Transmission Electron

Hormetic effects on the growth were found in the roots of rice (Oryza sativa L. cv. Shengdao 16) exposed to increasing concentrations of La<sup>3+</sup> (0.05, 0.1, 0.5, 1.0, and 1.5 mmol/L). The results indicated that La<sup>3+</sup> promoted the growth of rice roots at 0.05 mmol/L, but inhibited the growth at 1.0 and 1.5 mmol/L La<sup>3+</sup> after 13 days of exposure. Transmission electron microscope showed that La<sup>3+</sup> was mainly deposited in the cell walls of the roots. In addition, the accumulation of K, Mg, Ca, Na, Fe, Mn, Zn, Cu, and Mo in the roots was also affected with the exposure of different La<sup>3+</sup> treatments. It showed that La<sup>3+</sup> affected the nutritional status of roots and further regulated the growth of rice.

Enhancement of glyphosate tolerance in rice (Oryza sativa L.) through mutation induction in EPSPS (5-enolpyruvylshikimate-3-phosphate synthase)

Plant Gene ◽  
2020 ◽  
Vol 22 ◽  
pp. 100225 ◽  
Author(s):  
Sedigheh Nasr Ramzi ◽  
Mohammad Mehdi Sohani ◽  
Reza Shirzadian-Khorramabad ◽  
Jafar Asghari ◽  
Mehriar Amininasab
Keyword(s):  
Oryza Sativa ◽  
Oryza Sativa L ◽  
Mutation Induction ◽  
Glyphosate Tolerance ◽  
Phosphate Synthase

Keragaan Morfologi dan Kandungan Antosianin Padi Beras Merah (Oryza sativa L.) di Kecamatan Munte dan Kecamatan Payung, Kabupaten Karo

1970 ◽  
Vol 5 (3) ◽  
pp. 391-403
Author(s):  
Wiwik Winarti ◽  
Eva Sartini Bayu ◽  
Revandy Iskandar Damanik
Keyword(s):  
Oryza Sativa ◽  
Oryza Sativa L ◽  
International Rice Research Institute ◽  
Research Institute

Keragaan morfologi dan kandungan antosianin padi beras merah (Oryza sativa L.) pada Kecamatan Munte dan Kecamatan Payung di Kabupaten Karo. Penelitian ini bertujuan untuk mendapatkan informasi morfologi dan kandungan antosianin padi beras merah (Oryza sativa L.). Penelitian ini dimulai dari Juni 2017dan selesai pada Januari 2018 di kecamatan Munte dan Kecamatan Payung Kabupaten Karo.Metode survei deskriptif menggunakan panduan International Rice Research Institute (IRRI). Teknik penentuan lokasi secara sengaja dan pengamblan sampel secara kebetulan.Uji kandungan antosianin menggunakan metode analitik dengan menghomogenkan sampel. Hasil eksplorasi didapatkan 72 genotipe yang dibagi menjadi tiga lokasi lahan. Berdasaran uji kandungan antosianin didapatkan lahan A memiliki kandungan tertinggi yaitu 0,5 mg/100 g dan terendah yaitu lahan B 0,08 mg/100 g.

Efficacy of some insecticide modules against major insect pests and spider population of rice, Oryza sativa L.

ENTOMON ◽  
2018 ◽  
Vol 43 (4) ◽  
pp. 257-262
Author(s):  
Atanu Seni ◽  
Bhimasen Naik
Keyword(s):  
Oryza Sativa ◽  
Grain Yield ◽  
Untreated Control ◽  
Insect Pests ◽  
Oryza Sativa L ◽  
Gall Midge ◽  
Stem Borer ◽  
The Other ◽  
The Third ◽  
Treated Plot

Experiments were carried out to assess some insecticide modules against major insect pests of rice. Each module consists of a basal application of carbofuran 3G @ 1 kg a.i ha-1 at 20 DAT and Rynaxypyr 20 SC @ 30 g a.i ha-1 at 45 DAT except untreated control. All modules differ with each other only in third treatment which was applied in 65 DAT. The third treatment includes: Imidacloprid 17.8 SL @ 27 g a.i ha-1, Pymetrozine 50 WG @ 150 g a.i ha-1, Triflumezopyrim 106 SC @ 27 g a.i ha-1, Buprofezin 25 SC @ 250 g a.i ha-1; Glamore (Imidacloprid 40+Ethiprole 40% w/w) 80 WG @ 100 g a.i. ha-1, Thiacloprid 24 SC @ 60 g a.i ha-1, Azadirachtin 0.03 EC @ 8 g a.i ha-1, Dinotefuran 20 SG@ 40 g a.i ha-1 and untreated control. All the treated plots recorded significantly lower percent of dead heart, white ear- head caused by stem borer and silver shoot caused by gall midge. Module with Pymetrozine 50 WG @ 150 g a.i ha-1 treated plot recorded significantly higher per cent reduction of plant hoppers (>80% over untreated control) and produced higher grain yield (50.75 qha-1) than the other modules. Among the different treated modules the maximum number of spiders was found in Azadirachtin 0.03 EC @ 8 g a.i ha-1 treated module plot followed by other treatments.

Correlation Studies on Grain Yield and its Component Traits in Rice (Oryza sativa L.)

2012 ◽  
Vol 2 (11) ◽  
pp. 13-14
Author(s):  
R. ARULMOZHI R. ARULMOZHI ◽  
◽  
Dr. A. MUTHUSWAMY Dr. A. MUTHUSWAMY
Keyword(s):  
Oryza Sativa ◽  
Grain Yield ◽  
Oryza Sativa L ◽  
Correlation Studies ◽  
Component Traits
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