Matches in SemOpenAlex for { <https://semopenalex.org/work/W2116909543> ?p ?o ?g. }
Showing items 1 to 89 of
89
with 100 items per page.
- W2116909543 endingPage "195" @default.
- W2116909543 startingPage "189" @default.
- W2116909543 abstract "Abstract The determination of the leaf area index of sugar beet canopies by using direct measurement techniques is very laborious. Indirect measurement techniques based on the theory of gap fractions offer a non‐destructive and rapid determination of the leaf area index. In this study the performance of the LAI‐2000 instrument from LI‐COR1 which measures the gap fraction at five zenith angle classes with an upward looking sensor was compared to a direct determination. A thinning test and two measurement series in sugar beet with different population densities and varied nitrogen application were conducted in 1992 and 1993 at the site of Göttingen. The direct determination of leaf area index was based on a destructive sampling of leaves and measurements with a Delta‐T2 image analysis system (DIAS). The results of the thinning test and the measurement series in 1992 did not indicate a significant difference between the LAI‐2000 and the direct determination. With correlation coefficients of 0.98 and 0.95 respectively, the relation between the two techniques was very close. The measurement series of 1993 showed a worse correspondence. In general the values of the LAI‐2000 measurements tended to be a bit lower than those of the direct determination. The leaf area index of sugar beet can be determined with sufficient accuracy using the LAI‐2000 instrument if light conditions are favourable and if the measurement procedure is adapted correctly." @default.
- W2116909543 created "2016-06-24" @default.
- W2116909543 creator A5055485832 @default.
- W2116909543 creator A5062604318 @default.
- W2116909543 date "1995-04-01" @default.
- W2116909543 modified "2023-09-29" @default.
- W2116909543 title "Indirect Determination of Leaf Area Index of Sugar Beet Canopies in Comparison to Direct Measurement" @default.
- W2116909543 cites W1971913523 @default.
- W2116909543 cites W1988775509 @default.
- W2116909543 cites W2015119638 @default.
- W2116909543 cites W2015916222 @default.
- W2116909543 cites W2026307199 @default.
- W2116909543 cites W2048163075 @default.
- W2116909543 cites W2075083367 @default.
- W2116909543 cites W2152424523 @default.
- W2116909543 cites W2342825194 @default.
- W2116909543 cites W4233041824 @default.
- W2116909543 doi "https://doi.org/10.1111/j.1439-037x.1995.tb01102.x" @default.
- W2116909543 hasPublicationYear "1995" @default.
- W2116909543 type Work @default.
- W2116909543 sameAs 2116909543 @default.
- W2116909543 citedByCount "23" @default.
- W2116909543 countsByYear W21169095432012 @default.
- W2116909543 countsByYear W21169095432013 @default.
- W2116909543 countsByYear W21169095432014 @default.
- W2116909543 countsByYear W21169095432015 @default.
- W2116909543 countsByYear W21169095432016 @default.
- W2116909543 countsByYear W21169095432017 @default.
- W2116909543 countsByYear W21169095432018 @default.
- W2116909543 crossrefType "journal-article" @default.
- W2116909543 hasAuthorship W2116909543A5055485832 @default.
- W2116909543 hasAuthorship W2116909543A5062604318 @default.
- W2116909543 hasConcept C101000010 @default.
- W2116909543 hasConcept C105795698 @default.
- W2116909543 hasConcept C144024400 @default.
- W2116909543 hasConcept C144027150 @default.
- W2116909543 hasConcept C149923435 @default.
- W2116909543 hasConcept C185592680 @default.
- W2116909543 hasConcept C205649164 @default.
- W2116909543 hasConcept C25989453 @default.
- W2116909543 hasConcept C2776936025 @default.
- W2116909543 hasConcept C2777108408 @default.
- W2116909543 hasConcept C2908647359 @default.
- W2116909543 hasConcept C31903555 @default.
- W2116909543 hasConcept C33923547 @default.
- W2116909543 hasConcept C53970728 @default.
- W2116909543 hasConcept C59822182 @default.
- W2116909543 hasConcept C62649853 @default.
- W2116909543 hasConcept C6557445 @default.
- W2116909543 hasConcept C86803240 @default.
- W2116909543 hasConceptScore W2116909543C101000010 @default.
- W2116909543 hasConceptScore W2116909543C105795698 @default.
- W2116909543 hasConceptScore W2116909543C144024400 @default.
- W2116909543 hasConceptScore W2116909543C144027150 @default.
- W2116909543 hasConceptScore W2116909543C149923435 @default.
- W2116909543 hasConceptScore W2116909543C185592680 @default.
- W2116909543 hasConceptScore W2116909543C205649164 @default.
- W2116909543 hasConceptScore W2116909543C25989453 @default.
- W2116909543 hasConceptScore W2116909543C2776936025 @default.
- W2116909543 hasConceptScore W2116909543C2777108408 @default.
- W2116909543 hasConceptScore W2116909543C2908647359 @default.
- W2116909543 hasConceptScore W2116909543C31903555 @default.
- W2116909543 hasConceptScore W2116909543C33923547 @default.
- W2116909543 hasConceptScore W2116909543C53970728 @default.
- W2116909543 hasConceptScore W2116909543C59822182 @default.
- W2116909543 hasConceptScore W2116909543C62649853 @default.
- W2116909543 hasConceptScore W2116909543C6557445 @default.
- W2116909543 hasConceptScore W2116909543C86803240 @default.
- W2116909543 hasIssue "3" @default.
- W2116909543 hasLocation W21169095431 @default.
- W2116909543 hasOpenAccess W2116909543 @default.
- W2116909543 hasPrimaryLocation W21169095431 @default.
- W2116909543 hasRelatedWork W1494656376 @default.
- W2116909543 hasRelatedWork W1967181933 @default.
- W2116909543 hasRelatedWork W1988937203 @default.
- W2116909543 hasRelatedWork W1994895017 @default.
- W2116909543 hasRelatedWork W1999033305 @default.
- W2116909543 hasRelatedWork W2153343587 @default.
- W2116909543 hasRelatedWork W2383196367 @default.
- W2116909543 hasRelatedWork W2763869597 @default.
- W2116909543 hasRelatedWork W2994103310 @default.
- W2116909543 hasRelatedWork W4311596687 @default.
- W2116909543 hasVolume "174" @default.
- W2116909543 isParatext "false" @default.
- W2116909543 isRetracted "false" @default.
- W2116909543 magId "2116909543" @default.
- W2116909543 workType "article" @default.