نتایج جستجو برای: rice classification

تعداد نتایج: 562660  

Journal: :Genome research 2004
Jinsheng Lai Nrisingha Dey Cheol-Soo Kim Arvind K Bharti Stephen Rudd Klaus F X Mayer Brian A Larkins Philip Becraft Joachim Messing

The cereal endosperm is a major organ of the seed and an important component of the world's food supply. To understand the development and physiology of the endosperm of cereal seeds, we focused on the identification of genes expressed at various times during maize endosperm development. We constructed several cDNA libraries to identify full-length clones and subjected them to a twofold enrichm...

2017
Yangyang Fan Tao Wang Zhengjun Qiu Jiyu Peng Chu Zhang Yong He

Striped stem-borer (SSB) infestation is one of the most serious sources of damage to rice growth. A rapid and non-destructive method of early SSB detection is essential for rice-growth protection. In this study, hyperspectral imaging combined with chemometrics was used to detect early SSB infestation in rice and identify the degree of infestation (DI). Visible/near-infrared hyperspectral images...

2013
Wenwen Kong Chu Zhang Fei Liu Pengcheng Nie Yong He

A near-infrared (NIR) hyperspectral imaging system was developed in this study. NIR hyperspectral imaging combined with multivariate data analysis was applied to identify rice seed cultivars. Spectral data was exacted from hyperspectral images. Along with Partial Least Squares Discriminant Analysis (PLS-DA), Soft Independent Modeling of Class Analogy (SIMCA), K-Nearest Neighbor Algorithm (KNN) ...

Journal: :Plant physiology 1936
P S Erygin

In the world market upland rice (grain) occupies a very modest place, since its production is comparatively limited, and harvests are uncertain since they depend upon precipitation. For this reason upland rice cannot compete with lowland rice. Upland rice is used exclusively in those regions possessing insufficient water for irrigation purposes. CAMUS (2) identifies four types of rice. Of these...

Journal: :IEEE Trans. Signal Processing 2000
Bruce R. Johnson James L. Kinsey

Discrepancies between the Discrete Wavelet Transform and the coefficients of the Wavelet Series are known to be reducible by initialization of input data. Prefilters based on Lagrange interpolants are derived here for biorthogonal compact support wavelet systems, providing exact subspace projection in cases of local polynomial smoothness. The resulting convergence acceleration in a non-polynomi...

2003
T. G. VAN NIEL T. R. McVICAR S. LIANG

The accuracies of rice classifications determined from density slices of broadband moisture indices were compared to results from a standard supervised technique using six reflective Enhanced Thematic Mapper plus (ETM+) bands. Index-based methods resulted in higher accuracies early in the growing season when background moisture differences were at a maximum. Analysis of depth of ETM+ band 5 res...

Journal: :STATISTIKA: Journal of Theoretical Statistics and Its Applications 2022

Rice is one of the agricultural products which main commodity in Indonesia. Supporting factors that play a very important role efforts to increase rice production are superior varieties. Superior varieties have characteristics similar another. Thus, farmers must choose used through classification process determine appropriate type rice. At this stage, three methods used: bagging, boosting, and ...

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