Redistribution of carbon and nitrogen compounds from the shoot to the harvesting organs during maturation in field crops

Osaki, Mitsuru; Shinano, Takuro; Tadano, Toshiaki

doi:10.1080/00380768.1991.10415017

Cited by 171 publications

(106 citation statements)

References 8 publications

(9 reference statements)

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“…3), while that of CGR (Rubisco) was too low after the vegetative stage, the yield of soybean was low compared with that of other crops. Since the amount of nitrogen absorbed was similar to that of winter wheat and the canopy structure resembled that of potato (Osaki et al 1991c) in this experiment, it is difficult to determine why the CGR (Rubisco) of soybean was so low.…”

Section: Discussionmentioning

confidence: 99%

Productivity of high-yielding- crops

Osaki

Morikawa

Matsumoto

et al. 1993

Soil Science and Plant Nutrition

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Section: Discussionmentioning

confidence: 99%

Productivity of high-yielding- crops

Osaki

Morikawa

Matsumoto

et al. 1993

Soil Science and Plant Nutrition

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“…The content of total carbon in the harvesting organs was mainly derived from the carbon assimilated in the leaves after flowering, and nitrogen in the harvesting organs was largely derived from the nitrogen formed in the shoots before flowering (Osaki et al 1991c). To achieve high yield, plant should assimilate carbon during the maturation stage, for which the nitrogen content in leaves should remain high because there is generally a positive linear relationship between photosynthesis and the nitrogen content in leaves (Evans 1989).…”

Section: Discussionmentioning

confidence: 99%

Productivity of maize related to the contents of ribulose-1,5-bisphosphate carboxylase/oxygenase, phosphoenolpyruvate carboxylase, and chlorophyll

Osaki

lyoda

Tadano

1995

Soil Science and Plant Nutrition

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Contents of ribulose-l,5-bisphosphate carboxylase/oxygenase (Rubisco), phosphoenolpyruvate carboxyiase (PEPC), and chlorophyll in whole leaves were measured, and the productivity of maize plants was analyzed in relation to the content of these photosynthetic components. Results were as follows.1) A very high grain yield (1,140 g m -~ on dry weight basis) was achieved using high-yielding variety and slow-release fertilizer. In this treatment, the total dry weight and the amount of nitrogen absorbed in plants were also highest, and the dry matter increasing rate and nitrogen accumulation rate remained high during the maturation stage compared to other treatments.2) High-yielding variety accumulated a larger amount of chlorophyll than variety with standard yield. On the other hand, the amount of Rubisco was affected by the nitrogen application, and the amount of PEPC was almost the same in both high yielding and variety with standard yield regardless of nitrogen application rate. Thus, to achieve high yield, chlorophyll content is the most important factor.3) Amount of Rubisco and chlorophyll were higher in the case of slowrelease fertilizer application than in rapid-release fertilizer application.

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“…The detailed procedures of the chemical analysis were described in a previous paper (Osaki et al 1991). Protein content was estimated by multiplying the amount of nitrogen by 6.25.…”

Section: Methodsmentioning

confidence: 99%

“…As the composition of amino acids of hydrolyzed proteins (PAA) was quite different from that of FAA in each organ, it was assumed that there was a considerable reconstruction of skeletons of carbon and nitrogen of amino acids in each metabolic pool (Osaki et al 1988a(Osaki et al , b, c, 1991. Though the sink requirement for nitrogen is high in soybean and low in Gramineae (Osaki et al 1991), it is suggested that some different mechanisms operated in the course of nitrogen retranslocation between Gramineae and Leguminosae.…”

mentioning

confidence: 99%