Title: Comparison on Some Aspects of Photosynthetic Declination of Wild Rice and 9516
Abstract: Wild rice(O. stiva L. f. Spontanea Roschev.) and 9516(sinica type cv.) were used to study the differences of photosynthetic declination between them. The flag leaves of 9516 have higher photosynthetic rate and chlorophyll content during whole life span, the maximum photosynthetic rate for 9516 is 23.5 μmolCO 2m -2 S -1 and 15.5μmolCO 2m -2 S -1 for wild rice. The APD(active photosynthetic duration) of 9516 is nearly 20 days longer than that of wild rice. On a soluble protein basis, there is a little difference between specific activities of RuBP carboxylase in flag leaves from wild rice and 9516. The activity of endopeptidase rises later than beginning of photosynthesis declination, and becomes slightly higher in early phase of photosynthesis declination, but reaches very high level in the latest phase. It indicates that endopeptidase mainly plays a role during irreversible declination phase.
Publication Year: 2002
Publication Date: 2002-01-01
Language: en
Type: article
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Cited By Count: 1
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