scholarly journals Emergence and Organ Elongation of Seedling of Paddy Rice Sown under Upland Field Condition as Affected by Specific Gravity and Weight of Seed

1975 ◽  
Vol 44 (4) ◽  
pp. 414-418
Author(s):  
Yutaka UEYAMA
1970 ◽  
Vol 6 ◽  
pp. 49-56 ◽  
Author(s):  
Bedanand Chaudhary ◽  
Sundar M Shrestha ◽  
Ram C Sharma

A total of 36 rice breeding lines including checks were evaluated for resistance to blast atRampur during 2000-2001. The experiments were conducted under both field condition andgreenhouse inoculated condition. Qualitative resistance in rice to blast was assessed based onlesion type, whereas quantitative resistance was assessed based on area under disease progresscurve (AUDPC) in the upland field condition. The number of sporulating lesions and the numberof leaves with at least one sporulating lesion per plant were considered as measures forevaluation of quantitative resistance in the greenhouse assay. The lesion type, neck blastpercentage and AUDPC data suggest that most of the rice lines possess higher level of resistanceto leaf and neck blast. The rice lines varied for the number of sporulating lesions and the numberof leaves with sporulating lesion per plant. Some lines were incompatible to virulent blastisolates, showing major resistance genes. NR 1558, NR 601-1-1-9, BW306-2 and CN 836-3-10were promising lines for quantitative resistance to both leaf and neck blast. Radha 12, Sabitri,Janaki possess higher level of quantitative resistance to blast, hence these could be promoted forcultivation in blast-prone environments. These genotypes could also be utilized as donor parentsfor breeding durable blast resistant varieties. The most virulent blast isolate could be used forevaluation of both qualitative and quantitative resistance to blast in early generation in thegreenhouse so that workload could be cut down in future works.Key words: Blast resistance; field condition; greenhouse assay; Pyricularia grisea; rice linesDOI: 10.3126/narj.v6i0.3344Nepal Agriculture Research Journal Vol.6 2005 pp.49-56


1961 ◽  
Vol 30 (1) ◽  
pp. 79-82 ◽  
Author(s):  
Kazuo NAGATO ◽  
Morie EBATA

1957 ◽  
Vol 26 (2) ◽  
pp. 116-116
Author(s):  
Tatsuhiko TAZIRI ◽  
Kiyoshi TSUNEKAWA
Keyword(s):  

1996 ◽  
Vol 40 (4) ◽  
pp. 287-292
Author(s):  
Yasuhiro Yogo ◽  
Do-Jin Lee ◽  
Katsuichiro Kobayashi ◽  
Hirosi Sugiyama

2016 ◽  
Vol 28 (4) ◽  
pp. 505-511
Author(s):  
Hwan-Hee Bae ◽  
Jin-Seok Lee ◽  
Beom-Young Son ◽  
Jung-Tae Kim ◽  
Sang Gon Kim ◽  
...  

1960 ◽  
Vol 29 (1) ◽  
pp. 19-22 ◽  
Author(s):  
Shinichi HASEGAWA ◽  
Giichi TAKEMURA ◽  
Kanenori NAKAYAMA

1963 ◽  
Vol 31 (3) ◽  
pp. 267-271 ◽  
Author(s):  
Kinzo KAWATEI ◽  
Kiyochika HOSHIKAWA ◽  
Yoshifumi TAKASHIMA

Author(s):  
A. Howie ◽  
D.W. McComb

The bulk loss function Im(-l/ε (ω)), a well established tool for the interpretation of valence loss spectra, is being progressively adapted to the wide variety of inhomogeneous samples of interest to the electron microscopist. Proportionality between n, the local valence electron density, and ε-1 (Sellmeyer's equation) has sometimes been assumed but may not be valid even in homogeneous samples. Figs. 1 and 2 show the experimentally measured bulk loss functions for three pure silicates of different specific gravity ρ - quartz (ρ = 2.66), coesite (ρ = 2.93) and a zeolite (ρ = 1.79). Clearly, despite the substantial differences in density, the shift of the prominent loss peak is very small and far less than that predicted by scaling e for quartz with Sellmeyer's equation or even the somewhat smaller shift given by the Clausius-Mossotti (CM) relation which assumes proportionality between n (or ρ in this case) and (ε - 1)/(ε + 2). Both theories overestimate the rise in the peak height for coesite and underestimate the increase at high energies.


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