Nucleotide sequences of two cDNA clones encoding different Cu/Zn-superoxide dismutases expressed in developing rice seed (Oryza sativa L.)

1992 ◽  
Vol 19 (2) ◽  
pp. 323-327 ◽  
Author(s):  
Atsushi Sakamoto ◽  
Hiroyuki Ohsuga ◽  
Kunisuke Tanaka
Keyword(s):  
Oryza Sativa ◽  
Oryza Sativa L ◽  
Nucleotide Sequences ◽  
Superoxide Dismutases ◽  
Cdna Clones ◽  
Rice Seed

scholarly journals Image analysis based on color, shape and texture for rice seed ( Oryza sativa L. ) germination evaluation

2017 ◽  
Vol 51 (5) ◽  
pp. 383-389 ◽  
Author(s):  
Benjamaporn Lurstwut ◽  
Chomtip Pornpanomchai
Keyword(s):  
Image Analysis ◽  
Oryza Sativa ◽  
Oryza Sativa L ◽  
Rice Seed

scholarly journals Possible Involvement of Phosphoinositide-Ca2+ Signaling in the Regulation of  -Amylase Expression and Germination of Rice Seed (Oryza sativa L.)

2000 ◽  
Vol 41 (4) ◽  
pp. 399-407 ◽  
Author(s):  
M. A. Kashem ◽  
K. Itoh ◽  
S. Iwabuchi ◽  
H. Hori ◽  
T. Mitsui
Keyword(s):  
Oryza Sativa ◽  
Oryza Sativa L ◽  
Rice Seed

scholarly journals Interferences of Inorganic Arsenic (III & V) on Growth and Development of Rice (Oryza sativa L.) With Special Emphasis on Root and Coleoptile Growth

2021 ◽  
Author(s):  
N.K. Mondal ◽  
Priyanka Debnath ◽  
Debojyoti Mishra
Keyword(s):  
Oryza Sativa ◽  
Oryza Sativa L ◽  
Inorganic Arsenic ◽  
Dry Weight ◽  
Ion Leakage ◽  
Rice Seed ◽  
Coleoptile Length ◽  
Arsenic Accumulation ◽  
Percent Germination ◽  
The Impact

Abstract A short-term phytotoxicity experiment was conducted on four varieties of rice (Oryza sativa L.) under the influence of arsenic (III & V) to evaluate the impact on root and coleoptiles growth. Four varieties (GB-1, IET-4786, IET-4094, and MTU-1010) of rice were undertaken for this study with different concentrations (0, 5, 10, 25 and 50 mg/L) of arsenic (III & V). Germination along with mean daily germination (MDG), length of root and coleoptile, water holding capacity of root and coleoptiles, fresh and dry weight, arsenic accumulation, MDA and root ion leakage were evaluated. Results highlighted that the percent germination of IET-4094 and MTU-1010 varieties of rice seed over control decreased significantly (p < 0.05) with increasing concentration of both arsenite and arsenate. However, the percent germination of GB-I and IET-4786 dose not affected on the different concentration of both arsenate and arsenite. The root and coleoptile length of all the four varieties showed remarkable decreasing trend over control with increasing concentration of both arsenite and arsenate. However, more pronounced effects were observed for arsenite than arsenate. Similarly, biomass of shoot is less affected than root under different concentration of arsenite and arsenate. The variety IET-4786 and MTU-1010, accumulated lower level of arsenic and variety GB-1 accumulate higher level of MDA level in root under both arsenite and arsenate treatments. Therefore, it can be concluded that the variety IET-4786 and MTU-1010 are the suitable varieties towards phytoremediation of both arsenite and arsenate. Moreover, farmers of arsenic contaminated area are recommended to cultivate IET-4786 and MTU-1010 varieties.

scholarly journals Germination and seedling growth of rice (Oryza sativa L.) as affected by varying concentrations of loom-dye effluent

2019 ◽  
Vol 17 (2) ◽  
pp. 153-160 ◽  
Author(s):  
Md. Arifur Rahman ◽  
Md. Sohanur Rahman ◽  
K.M. Mohiuddin ◽  
Md. Akhter Hossain Chowdhury ◽  
Md. Abul Khair Chowdhury
Keyword(s):  
Oryza Sativa ◽  
Seed Germination ◽  
Seedling Growth ◽  
Oryza Sativa L ◽  
Industrial Effluent ◽  
Rice Seed ◽  
Early Seedling Growth ◽  
Significant Difference ◽  
Early Seedling ◽  
Radical Length

Indiscriminate discharge of industrial effluent has become a serious problem for the agro-ecological environment in most of the areas of Bangladesh. The effects of loom-dye effluents on seed germination and early seedling growth of rice (Oryza sativa L.) were investigated by conducting an experiment in the laboratory of the Department of Agricultural Chemistry of Bangladesh Agricultural University, Mymensingh. Three types of loom-dye effluents were applied in sterilized petridishes at different loading ratios. Seven treatments (i.e., T0, T1, T2, T3, T4, T5 and T6 with 0, 5, 10, 25, 50, 75 and 100% effluent, respectively) of each effluent were used following completely randomized design (CRD) and replicated three times. Subsequently, Pb, Fe, Zn, Mn and Cr accumulation were also investigated in the harvested rice seedlings. Rice seed showed a significant difference in germination percentage with varying levels of effluent application at different days after setting of germination. The decreased seed germination rate and seedling growth of rice were observed with increased concentration of loom-dye effluents. The highest germination speed (97.8%) was obtained from control whereas the lowest germination speeds were obtained from T5 of black, and T6 of both black and violet effluents. Phytotoxic effects of loom-dye effluents on germination and radical length were extreme at 100% effluent concentration having the order of black > violet > pink. The maximum radical length (6.4 cm) and plumule length (7.5 cm) were observed with T1 of pink dye effluent whereas the minimum length of radical and plumule were obtained from T6 treatment of the effluents. The highest fresh weight (39.8 mg petridish–1), dry weight (5.7 mg petridish–1) and seedling vigor index (746.7%) were also observed from T1 of pink dye effluent. The maximum uptake of Pb, Fe, Mn and Zn was 0.48, 3.81, 0.79 and 0.13 μg g−1, respectively. The uptake of Cr was below the detectable limit. Total heavy metal accumulation in rice was in the following order: Fe>Mn>Pb>Zn>Cr. Results showed that the higher concentration of loom-dye effluent showed the higher toxic effects on different parameters of germination and early seedling growth compared with the lower effluent concentrations. J. Bangladesh Agril. Univ. 17(2): 153–160, June 2019

In silico analyses of superoxide dismutases (SODs) of rice (Oryza sativa L.)

2012 ◽  
Vol 22 (1) ◽  
pp. 150-156 ◽  
Author(s):  
Budheswar Dehury ◽  
Kishore Sarma ◽  
Ranjan Sarmah ◽  
Jagajjit Sahu ◽  
Smita Sahoo ◽  
...  
Keyword(s):  
Oryza Sativa ◽  
In Silico ◽  
Oryza Sativa L ◽  
Superoxide Dismutases ◽  
In Silico Analyses

scholarly journals Pengaruh Bahan Invigorasi dan Lama Perendaman pada Benih Padi Kadaluarsa (Oryza sativa L.) terhadap Viabilitas dan Vigor Benih

2020 ◽  
Vol 4 (1) ◽  
pp. 169-183
Author(s):  
Resti Afdharani ◽  
Hasanuddin Hasanuddin ◽  
Bakhtiar Bakhtiar
Keyword(s):  
Oryza Sativa ◽  
Oryza Sativa L ◽  
Seed Viability ◽  
Rice Seed ◽  
Randomized Design ◽  
Completely Randomized Design ◽  
Rice Seeds ◽  
Unit Unit ◽  
Banda Aceh ◽  
Significant Data

Abstrak. Penelitian ini bertujuan untuk mengetahui pengaruh bahan invigorasi dan lama perendaman serta interaksi keduanya terhadap viabilitas benih padi kadaluarsa. Penelitian ini dilaksanakaan di Laboratorium Ilmu dan Teknologi Benih Jurusan Agroteknologi Fakultas Pertanian Universitas Syiah Kuala, Banda Aceh dari bulan Juli sampai bulan Agustus 2018. Unit-unit penelitian disusun berdasarkan Rancangan Acak Lengkap (RAL) pola faktorial 4x3 dengan 3 ulangan dan dilanjutkan dengan uji Beda Nyata Jujur (BNJ) taraf 5% pada hasil uji F yang signifikan. Faktor pertama adalah bahan invigorasi dengan 4 jenis bahan yaitu Aquades, PEG, KNO3, dan Air kelapa. Faktor kedua adalah lama perendaman dengan 3 taraf yaitu 12, 24 dan 48 jam. Hasil penelitian menunjukkan bahwa bahan invigorasi terbaik terdapat pada bahan invigorasi menggunakan PEG. Lama perendaman tidak berpengaruh terhadap viabilitas benih padi kadaluarsa. Kombinasi perlakuan terbaik antara bahan invigorasi dan lama perendaman untuk invigorasi benih padi kadaluarsa pada penelitian ini terdapat pada bahan invigorasi menggunakan PEG dan lama perendaman 24 jam.The Effect of Invigorating Material and Soaking Periods on Expired Rice Seeds (Oryza sativa L.) againts Viability and Vigor SeedsAbstract. The purpose of this research was to investigate the effect of invigoration technique and soaking duration and interaction between them on the expired rice seed viability. The research was conducted at the Laboratory of Seed Science and Technology Department of Agrotechnology Faculty of Agriculture, Syiah Kuala University, Banda Aceh from July to August 2018. Treatment units were arranged in Factorial Completely Randomized Design (CRD) 4x3 in 3 replications, and the significant data was continued analized by Honestly Significant Different (HSD). The first factor was the invigoration technique that used 4 substance i.e Aquades, PEG, KNO3, and coconut water. While the second factor was duration of soaking i.e 12, 24 and 48 hours. The result showed the best concentration for invigoration was one used PEG, while the duration for soaking was not effect on invigoration. The best combination for invigoration of expired rice seeds on this research was PEG and 24 hours of soaking duration.

scholarly journals UJI BEBERAPA KONSENTRASI EKSTRAK RIMPANG JERINGAU (Acorus calamus L.) UNTUK MENGENDALIKAN HAMA WALANG SANGIT (Leptocorisa acuta Thunberg) PADA TANAMAN PADI GOGO (Oryza sativa L.)

2020 ◽  
Vol 34 (2) ◽  
pp. 129-138
Author(s):  
Desita Salbiah ◽  
Nizwan Harefa
Keyword(s):  
Oryza Sativa ◽  
Upland Rice ◽  
Oryza Sativa L ◽  
Total Mortality ◽  
Effective Concentration ◽  
Acorus Calamus ◽  
Rice Seed ◽  
Start Time ◽  
Dry Land ◽  
Sweet Flag

ABSTRACT Government efforts in supporting the increase in national rice production, namely optimizing dry land by planting upland rice. Rice seed bug (Leptocorisa acuta Thunberg) is a potential pest that at certain times become an important pest on the upland rice plants, therefore needed to control is using organic insecticide such as sweet flag rhizome extract. This research was aimed to obtain an effective concentration sweet flag rhizome extract (Acorus calamus L.) to control rice seed bug pest (Leptocorisa acuta Thunberg) on the ​​upland rice plant (Oryza sativa L.). The research was conducted at the Experimental Garden and Plant Pest Laboratory, Faculty of Agriculture, Riau University, Pekanbaru from January to May 2018. The experimentally by using a completely randomized design (CRD), which consist of five concentration sweet flag rhizome extract treatments are 0 g.l-1 water, 20 g.l-1 water, 40 g.l-1 water, 60 g.l-1 water and 80 g.l-1 water. The treatments repeated four times, therefore, twenty experimental units. The results showed that the concentration of 80 g.l-1 water was an effective concentration to control rice seed bug with the fastest start time of death at 1,25 hours, the fastest LT50 at 30,25 hours and the total mortality rate of 87,50%. Keywords: Organic insecticide, Sweet Flag Rhizome, Rice Seed Bug, Upland Rice

scholarly journals Toxicity of ZnO and TiO2 Nanoparticles on Germinating Rice Seed Oryza sativa L

2011 ◽  
pp. 282-285 ◽  
Author(s):  
Prapatsorn Boonyanitipong ◽  
Boonthida Kositsup ◽  
Prabhat Kumar ◽  
Sunandan Baruah ◽  
Joydeep Dutta
Keyword(s):  
Oryza Sativa ◽  
Tio2 Nanoparticles ◽  
Oryza Sativa L ◽  
Rice Seed ◽  
Zno And Tio2 Nanoparticles
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