Relationships Among Photosynthetic Rate, Bean Yield and Other Characters in Field-Grown Cultivars of Soybean

Buttery, B. R.; Buzzell, R. I.; Findlay, W. I.

doi:10.4141/cjps81-029

Cited by 65 publications

(42 citation statements)

References 16 publications

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“…These findings corroborate earlier work (3,4,6,17) and suggest that genotypic differences in single-leaf photosynthesis of soybean are caused by associated variation in the amount of photosynthetic material per unit leaf area. On a chloroplast basis (Fig.…”

supporting

confidence: 91%

“…Many experiments have shown the interrelatedness of leaf photosynthetic rate with other leaf traits among soybean (Glycine max [L.] Merr.) genotypes (3,4,6,17). There are some inconsistencies, but the consensus that emerges from these experiments is that leaf photosynthetic rate, RuBP3 carboxylase activity, photosynthetic electron transport activity, total or soluble protein content, Chl content, and specific leaf mass (all expressed per unit leaf area) are all more or less correlated.…”

mentioning

confidence: 99%

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Photosynthesis and Other Traits in Relation to Chloroplast Number during Soybean Leaf Senescence

Ford¹,

Shibles²

1988

Plant Physiol.

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supporting

confidence: 91%

mentioning

confidence: 99%

Photosynthesis and Other Traits in Relation to Chloroplast Number during Soybean Leaf Senescence

Ford¹,

Shibles²

1988

Plant Physiol.

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“…There was a positive association between canopy photosynthetic rates of F 4 lines and the mean of the F 6 lines derived from them, indicating genetic inheritance. Similar results have been reported in Canada with 12 soybean cultivars of similar maturity where leaf photosynthesis, measured during the grain-filling period, correlated positively with bean yield (Buttery et al, 1981). On the other hand, canopy photosynthesis as measured during the peak root bulking period, but not single leaf photosynthesis, was found to be positively correlated with storage root yield in sweet potato (Bhagsari and Ashley, 1990).…”

Section: Photosynthesis and Its Relation To Crop Productivity: Some Esupporting

confidence: 76%

Utility of basic research in plant/crop physiology in relation to crop improvement: a review and a personal account

El‐Sharkawy

2006

Braz. J. Plant Physiol.

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Utilidade da pesquisa básica em fisiologia vegetal e em fisiologia da produção em relação ao melhoramento das culturas: uma revisão e uma análise pessoal: A pesquisa e o desenvolvimento agrícola têm função essencial no desenvolvimento econômico das nações, provendo segurança alimentar para uma população em constante crescimento demográfico. Em países desenvolvidos, as lacunas entre a produção potencial e a produção real são sobremodo estreitas, devido a uma combinação de tecnologias avançadas, novas variedades altamente produtivas e aplicação de agroquímicos em sistemas de produção altamente mecanizados. Na maioria daqueles países, a produção agrícola supera a demanda nacional, resultando em excedentes para a exportação. Em muitos países em desenvolvimento, entretanto, a produtividade agrícola está ainda muito abaixo de seu potencial devido a limitações técnicas e sócio-econômicas. Déficit alimentar é a norma em países pobres e subdesenvolvidos, os quais requerem vultosas importações de alimentos. Para aliviar parcialmente essa situação, pesquisas de cunho agrícola devem ser reforçadas. Como ramos das ciências básicas, a fisiologia vegetal e a fisiologia da produção têm sido freqüentemente criticadas por não traduzirem seus resultados de pesquisa em melhoria da produtividade. Este artigo é focado nesse tema, apresentando uma avaliação das realizações pretéritas da pesquisa fisiológica e de seus impactos sobre o melhoramento das culturas e sobre a produção de alimentos. Discutem-se deficiências e limitações de pesquisas isoladas e de pouca relevância, juntamente com opiniões do cientista sobre como pesquisas efetivas na área da fisiologia devem ser conduzidas e integradas dentro de equipes de pesquisa multidisciplinares associadas ao melhoramento vegetal. Exemplos de pesquisas de sucesso na fisiologia da produção e suas contribuições para aumentar a produtividade agrícola são apresentados. Todos esses aspectos apontam para a necessidade de pronto financiamento da pesquisa básica por setores públicos e privados de países desenvolvidos. Palavras-chave: agricultura, ecofisiologia, ecossistemas, estresse hídrico, fotoperíodo, fotossíntese C 4 , hormônios, melhoramento, produtividade, solo, tolerância à seca Agricultural research and development plays an essential role in a nation s economic development, providing for food security for an ever-increasing population. In developed countries, the gap between potential and actual yield is largely closed because of a combination of advanced technologies, high-yielding new varieties and the application of agrochemicals in highly mechanized production systems. In most of these countries, agricultural production exceeds national demand, resulting in excess products for export. In many of the developing countries, however, agricultural productivity is still far below what it should be because of multiple technical and socio-economic constraints. Food deficits are the norm in poor and middle-income countries, requiring expensive food imports. To partially alleviate this situati...

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“…(Buttery et al 1981; Curtis et al 1969); wheat, Triticum aestivum L. and related species (Evans and Dunstone l97O:' Austin et al 1982); alfalfa, Medicago sa' tivaL. (Pearce et al 1969); and corn, Zea mays L. (Crosbie et al 1978 (Evans 1983).…”

mentioning

confidence: 99%

Relationships Between Carbon Dioxide Exchange Rate, Photosynthetic Area and Biomass in Pea

Hobbs¹

1986

Can. J. Plant Sci.

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Compensation between carbon dioxide exchange rate per unit photosynthetic area (CER) and total photosynthetic area (TPA) of a plant was examined in field-grown pea (Pisum sativum L.). Eight near-isogenic lines of cv. Alaska, representing all possible phenotypes of the genes af (leaflets transformed to tendrils), st (reduced stipule area) and tl (tendrils transformed to leaflets), were examined. The CER was measured on the leaflets (AfAf), tendrils (afafTlTl) or minute leaflets (afaftltl). The TPA was significantly reduced by the st gene in AfAf types (normal leaflets) with an apparently associated increase in CER. The st gene also significantly reduced the TPA in afaf types but there was no associated increase in CER. Tendrils had a lower CER than normal leaflets and comprised 22% of the TPA of the semi-leafless (afafStStTlTl) type. Crosses were made between a semi-leafless pea and four normal-leafed types previously selected for high or low CER. The CER means (normal leaflets) of the F1 progeny showed variability which was related to parental values. This was also true for the CER means (tendrils) of the populations of semi-leafless F2 segregants showing that genetic variability for CER can exist in tendrils. In the F2, tendril CER was correlated negatively to stomatal resistance and positively to chlorophyll content and final shoot dry weight (biomass). Genetic improvement in CER may be important when a plant ideotype requires substantial reduction in TPA.Key words: Photosynthesis, pea, chlorophyll content, stomatal resistance, Pisum sativum

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Relationships Among Photosynthetic Rate, Bean Yield and Other Characters in Field-Grown Cultivars of Soybean

Cited by 65 publications

References 16 publications

Photosynthesis and Other Traits in Relation to Chloroplast Number during Soybean Leaf Senescence

Photosynthesis and Other Traits in Relation to Chloroplast Number during Soybean Leaf Senescence

Utility of basic research in plant/crop physiology in relation to crop improvement: a review and a personal account

Relationships Between Carbon Dioxide Exchange Rate, Photosynthetic Area and Biomass in Pea

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