Abstract
For estimating the degree of damage of the rice plants affected with sheath blight (Hyp. Sasakii Shirai), following formula has been proposed.Degree of severity(%)=3n1+2n2+1n3+0n4/3N×100where, N=n1+n2+n3+n4: n1…number of stems having affected upper leafsheaths up to the top leaf: n2…number of stems having blighted upper leafsheaths except the top leafsheath: n3…number of stems having blighted leafsheaths except uppermost 2 leafsheath: n4…number of stems having the 4 uppermost leafsheaths healthy.
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Claims 1
Claim · model-written summary
A formula is proposed for the degree of severity (%) of rice sheath blight.
- Taxon
- rice
Oryza sativae0 - Interactor
- Hyp. Sasakii Shiraie0pathogen
- Outcome
- Degree of severity(%)e1
- Value
- 3N×100e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“For estimating the degree of damage of the rice plants affected with sheath blight (Hyp. Sasakii Shirai)”
e1“Degree of severity(%)=3n1+2n2+1n3+0n4/3N×100”