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.

Modeling changes in milled rice (Oryza sativa L.) kernel dimensions during soaking by image analysis

2007 ◽  
Vol 80 (1) ◽  
pp. 359-369 ◽  
Author(s):  
B.K. Yadav ◽  
V.K. Jindal
Keyword(s):  
Image Analysis ◽  
Oryza Sativa ◽  
Oryza Sativa L ◽  
Milled Rice

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 Quantitative Classification of Rice (Oryza sativa L.) Root Length and Diameter Using Image Analysis

PLoS ONE ◽  
2017 ◽  
Vol 12 (1) ◽  
pp. e0169968 ◽  
Author(s):  
Dongxiang Gu ◽  
Fengxian Zhen ◽  
David B. Hannaway ◽  
Yan Zhu ◽  
Leilei Liu ◽  
...  
Keyword(s):  
Image Analysis ◽  
Oryza Sativa ◽  
Root Length ◽  
Oryza Sativa L ◽  
Quantitative Classification

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

Image analysis of grain shape to evaluate the effects of high temperatures on grain filling of rice, Oryza sativa L.

2012 ◽  
Vol 137 ◽  
pp. 268-271 ◽  
Author(s):  
Jun-ichi Yonemaru ◽  
Satoshi Morita
Keyword(s):  
Image Analysis ◽  
Oryza Sativa ◽  
High Temperatures ◽  
Grain Shape ◽  
Oryza Sativa L ◽  
Grain Filling
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