Comparative analysis of two indirect methods of measuring leaf area index as applied to minimal and spur pruned grape vines
1994
Sommer, K.J. (Commonwealth Scientific and Industrial Research Organisation, Merbein (Australia). Div. of Horticulture) | Lang, A.R.G. (Commonwealth Scientific and Industrial Research Organisation, Canberra (Australia). Div. of Environmental Mechanics)
Leaf area index of spur and minimal pruned vines was measured directly by destructive leaf sampling and indirectly from light transmission measurements using 2 commercially available instruments, the LAI-2000 and the DEMON instruments. Both instruments provided good estimates of plant and leaf area index. The LAI-2000 had a tendency to underestimate leaf area index. The DEMON instrument provided the most accurate estimate of plant and leaf area index. With both instruments it is important to validate indirect with direct estimates of vine leaf area.
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