منابع مشابه
Changes of glutamine and asparagine content in cucumber seedlings in response to nitrate stress
Nitrogen fertilizer application rates in intensive agricultural systems have increased dramatically in recent years, especially in protected vegetable production systems. This excessive use of nitrogen fertilizer has resulted in soil secondary salinity, which has become a significant environmental stress for crops such as cucumber, in the protected farmlands. It is thus necessary to illuminate ...
متن کاملDecadal changes in global ocean chlorophyll
[1] The global ocean chlorophyll archive produced by the CZCS was revised using compatible algorithms with SeaWiFS. Both archives were then blended with in situ data to reduce residual errors. This methodology permitted a quantitative comparison of decadal changes in global ocean chlorophyll from the CZCS (1979–1986) and SeaWiFS (1997–2000) records. Global spatial distributions and seasonal var...
متن کاملSurvey on chlorophyll-a changes in Persian Gulf and the Gulf of Oman
Chlorophyll-a indicates the biomass of phytoplankton as the primary production. Chlorophyll-a changes indicate the situation of the ecosystem. The present study was conducted for monitoring it in the northern part of the Persian Gulf and Oman Gulf. For this purpose, CTD and NASA site information was used. Samplings were done from January-March 2018-2021. Mean southern waters chlorophyll-a in ...
متن کاملThe effects of tentoxin on chlorophyll synthesis and plastid structure in cucumber and cabbage.
To determine if chlorosis caused by tentoxin, a toxin produced by Alternaria tenuis Nees., is due to interference with chlorophyll synthesis directly or to disruption of normal chloroplast development, the effects of the toxin on these processes in cucumber (Cucumis sativus L.) and cabbage (Brassica oleracea L., var. capitata) were studied. Cucumber cotyledons are highly sensitive to the toxin ...
متن کاملStimulation by Ethylene of Chlorophyll Biosynthesis in Dark-grown Cucumber Cotyledons.
Five-day-old etiolated cucumber (Cucumis sativus L. var. Alpha Green) cotyledons produced more chlorophyll over a 4-hour illumination period after a prolonged exposure (12 to 72 hours) in the dark to ethylene concentrations ranging from 0.1 to 10 mul/l. Intact seedlings and excised cotyledons responded in the same way to this treatment. This effect does not involve a shortening of the lag phase...
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ژورنال
عنوان ژورنال: NIPPON SHOKUHIN KOGYO GAKKAISHI
سال: 1970
ISSN: 0029-0394
DOI: 10.3136/nskkk1962.17.187