Claim · model-written summary
In propanil-treated rice leaves, dry weight and pigments temporarily decreased, with complete recovery in 4-5 days.
- Taxon
- rice
Oryza sativae0 - Organ / stage
- leavese0
- Treatment
- propanile1
- Outcome
- dry weight, pigmentse0
- Direction
- decreasee0
- Qualifier
- followed by complete recovery in 4–5 dayse0
Not reportedComparator
Verbatim
e0“In treated rice leaves there was, however, a temporary decrease in dry weight, pigments, proteins and photosynthetic products followed by complete recovery in 4–5 days”
e1“When sprayed as a post‐emergent, foliar herbicide propanil destroyed Echinochloa crus‐galli (L.) with little or no visible injury to rice”
Title
Action of propanil on in vivo chlorophyll a fluorescence in Echinochloa crus‐galli and rice
H. DANIELL; G. SAROJINI; P. KUMARACHINNAYAN; et al. Weed Research 1981. doi:10.1111/j.1365-3180.1981.tb00113.x
Other claims from this paper (14)
- Intervention effect Foliar post-emergent propanil destroyed Echinochloa crus-galli.
- Intervention effect Foliar post-emergent propanil caused little or no visible injury to rice.
- Intervention effect In propanil-treated rice leaves, proteins and photosynthetic products temporarily decreased, with complete recovery in 4-5 days.
- Intervention effect At lower concentrations propanil inhibited electron flow in both rice and E. crus-galli in a manner similar to DCMU.
- Intervention effect At higher concentrations propanil damaged the primary electron donor in both rice and E. crus-galli.
- Intervention effect In vivo chlorophyll a fluorescence kinetics after field spraying of 1% propanil confirmed progressive deterioration of the weed.
- Intervention effect Propanil decreased fluorescence in rice leaves for a few hours.
- Intervention effect Rice leaves showed partial recovery of fluorescence from propanil within 6 h of spraying.
- Intervention effect Rice leaves showed total recovery of fluorescence from propanil within 48 h of spraying.
- Intervention effect When leaves were infiltrated with 0.01% propanil, fluorescence recovered well in both weed and crop leaves.
- Intervention effect When leaves were infiltrated with 1% propanil, fluorescence was drastically affected in both weed and crop leaves.
- Intervention effect With 0.1% propanil, fluorescence in the weed leaves deteriorated progressively.
- Intervention effect With 0.1% propanil, fluorescence in the crop leaves recovered after 4 h of incubation.
- Mechanism The authors suggest that the crop has an effective endogenous detoxifying mechanism for propanil.