Studies on the Seed Production of Soybean : VII. The ability of photosynthesis in F&lt;SUB&gt;1&lt;/SUB&gt; and F&lt;SUB&gt;2&lt;/SUB&gt; generations

Ojima, M.; Kawashima, R.; Mikoshiba, Kimito

doi:10.1626/jcs.38.693

Cited by 17 publications

(6 citation statements)

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“…Significant differences were observed among soybean varieties, but the rel ative performance of the varieties were different at the two laboratories. Ojima and his associates (179)(180)(181) found that although absolute photo synthetic rates of soybean varied with environment, certain varieties always tended to be superior. The differences were controlled by quantitative in heritance, and the high photosynthetic rates were greater when both parents had high rather than low rates of photosynthesis.…”

Section: Photosynthesismentioning

confidence: 99%

Agricultural Productivity

Loomis¹,

Williams²,

Hall³

1971

Annu. Rev. Plant. Physiol.

128

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Man's dependence upon food resources from cultivated lands had its genesis some 10,000 years ago, and the resulting technology of crop hus bandry has been the principal factor permitting large increases in human population. The potential for food production in conventional agriculture and in alternative systems is undergoing intensive re-examination now be cause of current rapid population growth and attendant pressures for conver sion of highly productive, cultivated lands to other uses. The develop ment of plant physiology as a discipline has been closely linked to the de velopment of agriculture and agricultural research, so it is well that we attempt to take inventory in this review of how our research relates to cur rent and future problems in agricultural productivity.Let us focus our examination of agricultural ecosystems first upon several constraints which limit us in comparative analyses of diverse systems and which serve to shape research needs.First, agricultural systems are basically photosynthetic systems and hence must be assessed for their efficiency in conversion of solar irradiance in terms of both primary productivity and useful end products. This means focusing not only on basic aspects of photosynthesis at leaf and cellular levels but also at the community level. Responses to crowding, the dynamics of canopy development, and canopy persistence over the growing season become crucial matters. Time itself must be viewed as a resource.Second, the choice of crop species is heavily influenced by factors un related to primary production potential. Food, feed, and fiber preferences and secondary constraints such as pests, ease of culture, and the need for diversity in operations establish economic priorities which frequently over ride consideration of biological efficiency, Thus, in The Netherlands, grasses may accumulate 1000 g m-2 of dry matter before the time that maize can even be planted (210). However, significant amounts of maize are grown in The Netherlands because of its utility as a concentrated carbohydrate source. Also, it appears that genetic selection generally has favored quantity and quality of economic yield, variables which often correlate poorly with community productivity. These same factors encourage the culture of a desirable plant to be extended towards the limits of its climatic adaptation. Thus, economically attractive cropping systems may be transposed to en-431 7518 Annu. Rev. Plant. Physiol. 1971.22:431-468. Downloaded from www.annualreviews.org Access provided by North Dakota INBRE on 11/19/14. For personal use only. Quick links to online content Further ANNUAL REVIEWS

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Section: Photosynthesismentioning

confidence: 99%

Agricultural Productivity

Loomis¹,

Williams²,

Hall³

1971

Annu. Rev. Plant. Physiol.

128

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“…Photosynthesis is considered as the most important physiological process that governs the growth and yield of crops. Photosynthesis process of sesame varied over a wide range of genetical and environmental conditions (Ojima et al, 1969). Information relating to photosynthetic rate, dry matter partitioning and yield variation in sesame is very limited.…”

Section: Introductionmentioning

confidence: 99%

Photosynthesis, Dry Matter Partitioning and Yield Variation in Sesame Genotypes

Akter

Khaliq

Islam

et al. 2016

Bangladesh Agron. J.

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An experiment was conducted at the research field of Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur-1706 from March to June 2014 to evaluate growth and yield performance of sesame genotypes. Five sesame genotypes i.e. DB-6992, BD-6995, BD-7001, BD-7011 and Hathazari-4 were used in the study. The genotypes significantly differed in photosynthetic rate, dry matter partitioning and seed yield. The earliest genotype was Hathazari-4 and the latest was BD-7011. The highest stem dry weight, leaf dry weight, capsule dry weight, leaf area index, light interception, photosynthetic rate were recorded in genotype Hathazari-4. The number of capsules plant -1 and the number of seeds capsule -1 were also highest in the genotype Hathazari-4, while the lowest was being noticed in the genotype BD-7001. Weight of 1000-seed was the maximum in genotype BD-6992 and the minimum in the genotype BD-7011. The highest seed yield (3.52 tha -1 ) was recorded in the genotype Hathazari-4 and the lowest in the genotypes BD-6992 followed by BD-7001. The highest oil content (41.39%) was recorded in the genotype BD-6992 and the lowest (39.72%) in the genotype Hathazari-4 but the highest oil yield (1.53 t ha -1 ) was recorded in the genotype Hathazari-4. It may be concluded that the sesame genotype Hathazari-4 may be cultivated for higher seed yield and oil production.

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“…(MCWILLIAM et al ., 1969), or soybean (Glycine max L. MERR .) (OJIMA et al ., 1969 ;WIEBOLD, 1975) . Additionally, dominance for low -'--tosynthetic rate has been reported for dry bean (IzHAR & WALLACE, 1967) and for certain soybean crosses (OJIMA et al ., 1969 ;WIEBOLD, 1975) .…”

Section: Introductionmentioning

confidence: 99%

Inheritance of photosynthesis in a diallel among eight maize inbred lines from Iowa Stiff Stalk Synthetic

1978

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INDEX WORDSZea mars L . . maize . CO 2 -exchange rate, combining ability, heterosis . SUMMARY Photosynthesis is a trait that should be improved in a selection program for yield potential of maize (Zea mat's L .) . We measured leaf CO 2 -exchange rate (CER), an estimate of photosynthetic efficiency, of a complete diallel (parents, F, crosses, and their reciprocals) among eight inbred lines (4 with low and 4 with high CER) from the Iowa Stiff Stalk Synthetic maize population . Measurements were made during vegetative (CER 1) and grain filling (CER 2) stages of growth, and the experiment was conducted two years at one location . We measured large differences among crosses and significant heterosis for high CER at CER 1(0 .0 to 25 .1 %) and CER 2 (0 .0 to 53 .8%) . Several crosses exhibited overdominant phenotypes for high CER at both growth stages . and one cross showed significant overdominance for low CER at CER 1 . General combining ability effects (gca) were the largest components of among-cross variation at both CER I and CER 2 . Specific combining ability (sea) also was significant at both growth stages, but gca effects were 9 .4 and 4 .8 times larger than sea effects at CER I and CER 2, respectively . Furthermore, high CER lines showed positive gca effects . and low CER lines showed negative gca effects at each stage. Maternal and reciprocal effects were not significant ; thus, CER in these crosses was controlled largely by additive effects of nuclear genes . A high positive genotypic correlation (r = 0 .74) between CER I and CER 2 suggested that selection at either growth stage would improve CER throughout the growing season .

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Studies on the Seed Production of Soybean : VII. The ability of photosynthesis in F<SUB>1</SUB> and F<SUB>2</SUB> generations

Cited by 17 publications

References 2 publications

Agricultural Productivity

Agricultural Productivity

Photosynthesis, Dry Matter Partitioning and Yield Variation in Sesame Genotypes

Inheritance of photosynthesis in a diallel among eight maize inbred lines from Iowa Stiff Stalk Synthetic

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