Intergeneric somatic hybridization of rice ( Oryza sativa L.) and barley ( Hordeum vulgare L.) by protoplast fusion

1998 ◽  
Vol 17 (5) ◽  
pp. 362-367 ◽  
Author(s):  
H. Kisaka ◽  
M. Kisaka ◽  
A. Kanno ◽  
T. Kameya
Keyword(s):  
Oryza Sativa ◽  
Hordeum Vulgare ◽  
Protoplast Fusion ◽  
Somatic Hybridization ◽  
Oryza Sativa L ◽  
Hordeum Vulgare L ◽  
Intergeneric Somatic Hybridization

scholarly journals Perspectives for cultivation of diversified crops in a rice (Oryza sativa L.)-based crop rotation in the Kyzylorda region, Kazakhstan

2021 ◽  
Vol 70 (1) ◽  
pp. 68-85
Author(s):  
Laura Tokhetova ◽  
Bibigul Baizhanova ◽  
Ainur Baykenzhieva ◽  
Bekzat Kultasov ◽  
Tihomir Predić
Keyword(s):  
Oryza Sativa ◽  
Crop Rotation ◽  
Oryza Sativa L ◽  
Aral Sea ◽  
Mineral Fertilizers ◽  
Hordeum Vulgare L ◽  
Brassica Napus L ◽  
Aral Sea Basin ◽  
River Waters ◽  
Glycine Max L

In the Aral Sea basin of Kyzylorda region, Kazakhstan, rice (Oryza sativa L.) is a main crop and annually occupies more than 45% of the total area of agricultural crops. However, about 90% of Syr Daria River waters is consumed for agricultural purposes, mainly for irrigation of paddy fields. In addition, there is an annual variability in the volume of water during the growing season, which creates certain threats to ensuring guaranteed water supply to irrigated lands and may pose a desertification risks. In addition, in the studied region, due to insufficient application of phosphorus fertilizers nutrient imbalance has been observed in the soil. The aim of the research was to develop sustainable production of rice by introduction of diversified cultures such as barley, soybean and rapeseed: Hordeum vulgare (L.), Glycine max (L.) and Brassica napus (L.), respectively, in a rice-based crop rotation and application of the different doses of mineral fertilizers in the Kyzylorda region. The results of the study showed that application of phosphorus as the main fertilizer at a dose of 90 kg ha-1 gives a significant increase in yield. Studied barley and rapeseed crops showed better adaptability to the specific agroecological conditions. These crops are recommended to be introduced into the rice crop rotations in order to produce rice using environmentally friendly technology.

scholarly journals Production of bacterial blight resistant lines from somatic hybridization between Oryza sativa L. and Oryza meyeriana L.

2004 ◽  
Vol 5 (10) ◽  
pp. 1199-1205 ◽  
Author(s):  
Cheng-qi Yan ◽  
Kai-xian Qian ◽  
Gang-ping Xue ◽  
Zhong-chang Wu ◽  
Yue-lei Chen ◽  
...  
Keyword(s):  
Oryza Sativa ◽  
Bacterial Blight ◽  
Somatic Hybridization ◽  
Oryza Sativa L ◽  
Resistant Lines ◽  
Oryza Meyeriana

scholarly journals LOS ARABINOXILANOS FERULADOS DE CEREALES. UNA REVISIÓN DE SUS CARACTERÍSTICAS FISICOQUÍMICAS Y CAPACIDAD GELIFICANTE

2013 ◽  
Vol 36 (4) ◽  
pp. 439 ◽  
Author(s):  
Adriana Morales-Ortega ◽  
Guillermo Niño-Medina ◽  
Elizabeth Carvajal-Millán ◽  
Alfonso Gardea-Béjar ◽  
Patricia Torres-Chávez ◽  
...  
Keyword(s):  
Triticum Aestivum ◽  
Zea Mays ◽  
Oryza Sativa ◽  
Zea Mays L ◽  
Oryza Sativa L ◽  
Triticum Aestivum L ◽  
Panicum Miliaceum ◽  
Sorghum Vulgare ◽  
Hordeum Vulgare L ◽  
Secale Cereale L

Los arabinoxilanos ferulados son los principales polisacáridos no amiláceos de los granos de cereales, que se localizan en las paredes celulares del endospermo, en la capa aleurona y en el pericarpio de los mismos. Estos polisacáridos se han reportado en los cereales más importantes, como trigo (Triticum aestivum L.), centeno (Secale cereale L. M. Bieb.), cebada (Hordeum vulgare L.), avena (A. sativa), arroz (Oryza sativa L.), sorgo (Sorghum vulgare), maíz (Zea mays L.) y mijo (Panicum miliaceum L.). Recientemente se han realizado esfuerzos enfocados a la extracción de arabinoxilanos ferulados a partir de subproductos de la industria procesadora de cereales, como de los pericarpios de maíz y de trigo, así como del “nejayote” que es el agua residual de la nixtamalización del maíz. Los arabinoxilanos ferulados forman soluciones viscosas y pueden formar geles bajo la acción de ciertos agentes oxidantes. Además, presentan características físico-químicas determinantes para su capacidad gelificante. Los geles de arabinoxilanos han despertado un gran interés debido a que presentan características interesantes como: olor y sabor neutro; estabilidad al pH, a los cambios de temperatura y de concentración de electrolitos; así como una estructura macroporosa. Estas características les confieren aplicación potencial como matrices para la liberación controlada de biomoléculas en aplicaciones alimentarias y no alimentarias, lo cual podría dar valor agregado a los cereales o subproductos de cereales de los cuales pueden ser extraídos estos polisacáridos. Esta revisión incluye los reportes más recientes sobre las características fisicoquímicas y la capacidad gelificante de arabinoxilanos ferulados, tema sobre el cual ha resurgido el interés en los últimos diez años. La generación de nuevo conocimiento sobre este polisacárido y sus geles podría sentar las bases para su aplicación en distintas áreas como la agroalimentaria, la biomédica y la cosmética, entre otras.

Ultrastructure and Senescence in an Achloroplastic Mutant of Hordeum vulgare L. cv. Dyan

1992 ◽  
Vol 50 (1) ◽  
pp. 844-845
Author(s):  
R.H.M. Cross ◽  
C.E.J. Botha ◽  
A.K. Cowan ◽  
B.J. Hartley
Keyword(s):  
Cell Wall ◽  
Hordeum Vulgare ◽  
Leaf Tissue ◽  
Ultrastructural Changes ◽  
Hordeum Vulgare L ◽  
Mesophyll Cells ◽  
Lethal Mutant ◽  
Cytoplasmic Matrix ◽  
Close Proximity ◽  
Pinocytotic Vesicles

Senescence is an ordered degenerative process leading to death of individual cells, organs and organisms. The detection of a conditional lethal mutant (achloroplastic) of Hordeum vulgare has enabled us to investigate ultrastructural changes occurring in leaf tissue during foliar senescence.Examination of the tonoplast structure in six and 14 day-old mutant tissue revealed a progressive degeneration and disappearance of the membrane, apparently starting by day six in the vicinity of the mitochondria associated with the degenerating proplastid (Fig. 1.) where neither of the plastid membrane leaflets is evident (arrows, Fig. 1.). At this stage there was evidence that the mitochondrial membranes were undergoing retrogressive changes, coupled with disorganization of cristae (Fig. 2.). Proplastids (P) lack definitive prolamellar bodies. The cytoplasmic matrix is largely agranular, with few endoplasmic reticulum (ER) cisternae or polyribosomal aggregates. Interestingly, large numbers of actively-budding dictysomes, associated with pinocytotic vesicles, were observed in close proximity to the plasmalemma of mesophyll cells (Fig. 3.). By day 14 however, mesophyll cells showed almost complete breakdown of subcellular organelle structure (Fig. 4.), and further evidence for the breakdown of the tonoplast. The final stage of senescence is characterized by the solubilization of the cell wall due to expression and activity of polygalacturonase and/or cellulose. The presence of dictyosomes with associated pinocytotic vesicles formed from the mature face, in close proximity to both the plasmalemma and the cell wall, would appear to support the model proposed by Christopherson for the secretion of cellulase. This pathway of synthesis is typical for secretory glycoproteins.

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.

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