scholarly journals Evaluation The Efficiency of Some of Bio - Control Fungi on The Content of Rice Leaves (Oryza Sativa L.) Class Jassmine of Phenols, Alkaloids, And Some of Hormones

2022 ◽  
Vol 961 (1) ◽  
pp. 012062
Author(s):  
Nihad H. Mutlag ◽  
Ahmed M. Hussein ◽  
Rafid M. Abdulaali
Keyword(s):  
Oryza Sativa ◽  
Gibberellic Acid ◽  
Trichoderma Harzianum ◽  
Biocontrol Agent ◽  
Oryza Sativa L ◽  
Research Center ◽  
Control Treatment ◽  
College Of Agriculture ◽  
Significant Difference ◽  
Rice Leaves

Abstract This study was conducted to evaluate the effect of using biocontrol fungi - Trichoderma harzianum. Australian (T.h.a). and Trichoderma harzianum. tahadi(T.h.t) and Chaetumium elatum( C.e) isolates on contents of rice leaves ) Oryza sativa L. (class jasmine of phenols, alkaloids, and hormones( zeatin, gibberellic acid, indol acitic acid). To attaining these aims, two experements were carryied out in two regions at Rice Research Center(RRC), and Agriculture college - AL-Najaf province. The results of this study can be summarized as follows: The suspension (10)-4 of biocontrol agent T.h.a gave a significant difference in concentrations of phenols in rice leaves for treatment: Soil + hay + NP + T.h.a which reached 0.378, 0.363 ppm in RRC and college of agriculture fields, in compare with control treatment which gave 0.251,0.245 ppm, respectively. T.h.a. gave a significant differences in concentrations of alkaloids in rice leaves for treatment: Soil + hay + NP + T.h.a which reached 1.67,1.51 µg/ml in RRC and college of agriculture fields, in compare with control treatment which gave 1.19,1.15 µg/ml., respectively T.h.a attained the highest concentrations of hormones ( zeatin, gebberllic acid, indol acitic acid) in rice leaves for treatment: Soil + hay + NP + T.h.a which reached (0.0941, 53.84, 0.287) ppm, at RRC and (0.0835, 44.52, 0.268) ppm for college of agriculture fields, in compare with control treatment which gave ( 0.0712, 51.12, 0.210) ppm with RRC and (0.0523, 42.10, 0.174)ppm for college of agriculture, respectively.

Mapping of quantitative trait loci for gibberellic acid response at rice (Oryza sativa L.) seedling stage

Plant Science ◽  
2006 ◽  
Vol 170 (1) ◽  
pp. 12-17 ◽  
Author(s):  
Yanjun Dong ◽  
H. Kamiuten ◽  
Zhongnan Yang ◽  
Dongzhi Lin ◽  
T. Ogawa ◽  
...  
Keyword(s):  
Oryza Sativa ◽  
Quantitative Trait Loci ◽  
Gibberellic Acid ◽  
Quantitative Trait ◽  
Oryza Sativa L ◽  
Seedling Stage ◽  
Trait Loci

scholarly journals Daya Gabung Beberapa Varietas Padi (Oryza sativa L.) pada Persilangan Dialel Menggunakan Metode Griffing II

2021 ◽  
pp. 84-93
Author(s):  
Anak Agung Ketut Sudharmawan ◽  
Baiq Erna Listiana ◽  
Sofi Rianti
Keyword(s):  
Oryza Sativa ◽  
Plant Height ◽  
Power Analysis ◽  
Oryza Sativa L ◽  
Panicle Length ◽  
Grain Number ◽  
Significant Difference ◽  
Diallel Crossing ◽  
High Yielding Varieties ◽  
Materials Used

Diallel crossing is a method that is widely used to determine the ability to combine each individual so that it can identify the potential elders to be used in crossbreeding programs to assemble high yielding varieties. This experiment aims to determine the combining power of dialelic crosses of several varieties of rice using the Griffing II method, carried out in the experimental field of the Faculty of Agriculture, Mataram University in Nyiur Lembang Village, Narmada District, West Lombok Regency, from February to July 2019. This experiment uses the method experiments carried out in the field. The materials used in this experiment were four parents, namely IPB 3S variety, Situ Patenggang variety, Inpari 32 and G11 strain and the phenotype of the cross between the four parents. The experimental results showed that the effects of general affinity and special affinity for all observed characters (plant height, number of productive tillers, number of non-productive tillers, panicle length, number of filled grain, number of empty grain and weight of 100 grains) were significantly different, except on the effect of general affinity for the number of non-productive tillers showed no significant difference. The results of the combined power analysis of the four elders were positive, so it can be said that the four elders would get good results when crossed with a number of other genotypes.

scholarly journals Kualitas Fisik Beras (Oryza sativa L.) Mutan M4 Hasil Iradiasi Sinar Gamma

2020 ◽  
Vol 4 (1) ◽  
pp. 32-42
Author(s):  
Nanda Funna Ledita ◽  
Efendi Efendi ◽  
Rita Hayati
Keyword(s):  
Oryza Sativa ◽  
Gamma Ray ◽  
Amylose Content ◽  
Oryza Sativa L ◽  
Mutant Line ◽  
Milled Rice ◽  
Physical Quality ◽  
Significant Difference ◽  
Gamma Ray Irradiation

Abstrak.  Beras (Oryza sativa L.) merupakan salah satu tanaman pangan yang berfungsi sebagai tanaman pokok selain gandum dan jagung di Indonesia, dikarenakan mengandung nutrisi yang dibutuhkan tubuh seperti karbohidrat, protein, air  dan lemak. Meningkatnya jumlah penduduk maka permintaan terhadap beras semakin meningkat. Permintaan tersebut sangat ditentukan oleh selera konsumen yang dipengaruhi oleh kualitas beras yaitu mutu fisik (ukuran dan bentuk butiran, rendemen dan pengapuran), mutu tanak (kadar amilosa dan suhu gelatinisasi) dan mutu rasa (tekstur dan aroma). Penelitian ini bertujuan untuk mengetahui kualitas beberapa galur padi mutan M4 hasil iradiasi sinar gamma. Penelitian ini dilaksanakan di Laboratorium Ilmu dan Teknologi Benih, Laboratorium Analisis Pangan dan Hasil Pertanian, Laboratorium Ilmu Nutrisi dan Teknologi Pakan dan Laboratorium Fisiologi Tumbuhan Fakultas Pertanian Universitas Syiah Kuala, serta Laboratorium Departemen Ilmu dan Teknologi Pangan Fakultas Teknologi Pertanian Institut Pertanian Bogor, yang berlangsung pada bulan April hingga Juli 2018. Rancangan yang digunakan dalam penelitian ini adalah Rancangan Acak Lengkap (RAL) pola non faktorial dengan 3 ulangan. Perlakuan penelitian ini berupa galur (G) dengan 5 taraf, yaitu i-Snb (G0) kontrol, O-39e (G1), O-57d (G2), O-57e (G3) dan O-88j (G4). Parameter yang diamati yaitu sifat fisik beras (densitas kamba, derajat sosoh, dimensi beras rendemen beras giling, dan warna). Hasil penelitian menunjukkan bahwa galur  mutan M4 berpengaruh sangat nyata terhadap kualitas sifat fisik rendemen beras giling dan warna nilai L (kecerahan). Rendemen beras giling terbaik galur O-39e (70,33%) dan warna nilai L (kecerahan) galur O-88j (117,90).  Perlakuan terbaik secara kumulatif  untuk sifat fisik beras yaitu pada i-Snb.. Physical Quality of Rice (Oryza sativa L. ) M4  Mutant Results of Gamma Ray IrradiationAbstract. Rice (Oryza sativa L.) is one of main food which the function is to be staple food beside wheat and corn in Indonesia because it contains nutrients such as carbohydrates, protein, water, and fat. Towards the increasing populations, the demand of rice is increasing as well. The demand is largerly depends on the consumer taste affected by the quality of rice which are physical quality (size and grain shape, rendemen, and calcification), cooked quality (amylose content and gelatinization temperature) and flavor quality (texture and smell). The purpose of this research was to investigate the quality of rice from several M4 mutant line resulting from gamma ray irradiation. This research was conducted at the Laboratory of Seed Science and Technology and Laboratory of Food and Agricultural Analysis, Faculty of Agriculture, Syiah Kuala University, Banda Aceh, from the month April to July 2018. The design used in this study was based on a non-factorial completely randomize design with 3 replications and continued with the Least Significant Difference Test (LSD) level of 5% on a significant F test results. The results showed that the M4 mutant line had a very significant effect on the quality of physical properties, the yield of milled rice and the best color L (brightness), namely on the O-88j and O-39e line.

scholarly journals Nitrogen, phosphorus and potassium status of rice co-planted with a novel phytoremediator, Marsilea minuta L.

2018 ◽  
Vol 43 (2) ◽  
pp. 211-218
Author(s):  
U Hassi ◽  
MT Hossain ◽  
SMI Huq
Keyword(s):  
Oryza Sativa L ◽  
Negative Relationship ◽  
Nutrient Content ◽  
Control Treatment ◽  
P Value ◽  
Aquatic Fern ◽  
Significant Negative Relationship ◽  
Significant Difference ◽  
Phosphorus And Potassium ◽  
Nitrogen Phosphorus

A pot experiment was carried out to assess the effects of arsenic and aquatic fern (Marsilea minuta L.), when applied as a phytoremediator, on the nutrient content (nitrogen, phosphorus, and potassium) of rice. Two sets of pot experiments were conducted in the net house on rice (Oryza sativa L.) together with aquatic fern (M. minuta) and on aquatic fern (M. minuta) alone where soils were treated with 1 mg/L As-solution at 80% arsenite and 20% arsenate. No significant difference was found in the nitrogen, phosphorus, and potassium concentrations of rice, in the absence of arsenic, whether grown in the presence of M. minuta or not. The uptake of total nitrogen, phosphorus, and potassium was found to be 36%, 23%, and 22% more, respectively in rice plants treated with M. minuta and arsenic over the control treatment, although the results were statistically insignificant. However, a significant negative relationship was found between arsenic and root nitrogen (P-value of 0.0017) when grown together with arsenic and M. minuta. A significant positive relationship was found between arsenic and shoot phosphorus (P-value of 0.0025) as well as arsenic and shoot and root potassium (P-values were 0.0045 and 0.0115, respectively). The results indicate that Marsilea minuta might be used as a phytoremediator of As together with rice plants.Bangladesh J. Agril. Res. 43(2): 211-218, June 2018

scholarly journals Impact of Titanium Dioxide Nanoparticles on Cd Phytotoxicity and Bioaccumulation in Rice (Oryza sativa L.)

2020 ◽  
Vol 17 (9) ◽  
pp. 2979 ◽  
Author(s):  
Wei Zhang ◽  
Jinghua Long ◽  
Jianmin Geng ◽  
Jie Li ◽  
Zhongyi Wei
Keyword(s):  
Titanium Dioxide ◽  
Oryza Sativa ◽  
Plant Height ◽  
Oryza Sativa L ◽  
Titanium Dioxide Nanoparticles ◽  
Engineered Nanoparticles ◽  
Control Treatment ◽  
Booting Stage ◽  
Tio2 Nps ◽  
The Impact

The impact of engineered nanoparticles (ENPs) on the migration and toxicity of coexisting pollutants is still unclear, especially in soil media. This study aims to evaluate the impact of titanium dioxide nanoparticles (TiO2 NPs) on the phytotoxicity of cadmium (Cd) to Oryza sativa L., and the migration of cadmium (Cd) in the soil-rice system. Three different Cd stress groups (C1 group: 1.0 mg kg−1, C2 group: 2.5 mg kg−1 and C3 group: 5.0 mg kg−1) were set in the pot experiment, and the target concentration of TiO2 NPs in each group were 0 mg kg−1 (T0), 50 mg kg−1 (T1), 100 mg kg−1 (T2) and 500 mg kg−1 (T3). Plant height and biomass decreased with the increasing of Cd content in paddy soil. TiO2 NPs could lower the phytotoxicity of Cd in terms of the changes in the morphological and biochemical characteristics, especially in the tillering and booting stage. In the tillering stage, TiO2 NPs addition caused a significant increase in plant height, biomass and the total chlorophyll content in the leaves of Oryza saliva L. In the booting stage, TiO2 NPs addition caused a 15% to 32% and 24% to 48% reduction of malondialdehyde (MDA) content for the C2 and C3 group, respectively, compared to that of the respective control treatment (T0). TiO2-NPs addition reduced the activity of peroxidase (POD) in the leaves in the booting and heading stage, and the activity of catalase (CAT) in the tillering stage. In the C1 and C2 group, the grain Cd content in the 100 and 500 mg kg−1 TiO2 NPs treatments reached 0.47–0.84 mg kg−1, obviously higher than that of the treatment without TiO2 NPs (0.27–0.32 mg kg−1), suggesting that TiO2-NPs could promote Cd migration in the soil-rice system.

scholarly journals Influence of the Toxin Cercosporin on Formation of Free Radicals in Rice Leaves (Oryza Sativa L.)

1997 ◽  
Vol 11 (1-2) ◽  
pp. 37-39
Author(s):  
N. Gorinova ◽  
R. Batchvarova ◽  
M. Zdravkova ◽  
N. Yordanov
Keyword(s):  
Oryza Sativa ◽  
Free Radicals ◽  
Oryza Sativa L ◽  
Rice Leaves

Suitable gibberellic acid treatment for double-purpose rice (Oryza sativa L.) varieties at different harvest times

2016 ◽  
Vol 193 ◽  
pp. 178-185 ◽  
Author(s):  
Chenfei Dong ◽  
Nengxiang Xu ◽  
Chenglong Ding ◽  
Hongru Gu ◽  
Wenjie Zhang ◽  
...  
Keyword(s):  
Oryza Sativa ◽  
Gibberellic Acid ◽  
Acid Treatment ◽  
Oryza Sativa L ◽  
Gibberellic Acid Treatment

scholarly journals Effects of Copper Oxide Nanoparticles on the Growth of Rice (Oryza Sativa L.) Seedlings and the Relevant Physiological Responses

2020 ◽  
Vol 17 (4) ◽  
pp. 1260 ◽  
Author(s):  
Zhongzhou Yang ◽  
Yifan Xiao ◽  
Tongtong Jiao ◽  
Yang Zhang ◽  
Jing Chen ◽  
...  
Keyword(s):  
Superoxide Dismutase ◽  
Oryza Sativa ◽  
Copper Oxide ◽  
Molecular Mechanisms ◽  
Oryza Sativa L ◽  
Membrane Damage ◽  
Carotenoid Content ◽  
Rice Seedlings ◽  
Cuo Nps ◽  
Rice Leaves

Rice (Oryza sativa L.), a major staple food for billions of people, was assessed for its phytotoxicity of copper oxide nanoparticle (CuO NPs, size < 50 nm). Under hydroponic condition, seven days of exposure to 62.5, 125, and 250 mg/L CuO NPs significantly suppressed the growth rate of rice seedlings compared to both the control and the treatment of supernatant from 250 mg/L CuO NP suspensions. In addition, physiological indexes associated with antioxidants, including membrane damage and antioxidant enzyme activity, were also detected. Treatment with 250 mg/L CuO NPs significantly increased malondialdehyde (MDA) content and electrical conductivity of rice shoots by 83.4% and 67.0%, respectively. The activity of both catalase and superoxide dismutase decreased in rice leaves treated with CuO NPs at the concentration of 250 mg/L, while the activity of the superoxide dismutase significantly increased by 1.66 times in rice roots exposed to 125 mg/L CuO NPs. The chlorophyll, including chlorophyll a and chlorophyll b, and carotenoid content in rice leaves decreased with CuO NP exposure. Finally, to explain potential molecular mechanisms of chlorophyll variations, the expression of four related genes, namely, Magnesium chelatase D subunit, Chlorophyll synthase, Magnesium-protoporphyrin IX methyltransferase, and Chlorophyllide a oxygenase, were quantified by qRT-PCR. Overall, CuO NPs, especially at 250 mg/L concentration, could affect the growth and development of rice seedlings, probably through oxidative damage and disturbance of chlorophyll and carotenoid synthesis.

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