scholarly journals Correlation between Yielding Ability and Dry Matter Productivity during Initial Seed Filling Stage in Various Soybean Genotypes

2004 ◽  
Vol 7 (2) ◽  
pp. 138-142 ◽  
Author(s):  
Tatsuhiko Shiraiwa ◽  
Noriyuki Ueno ◽  
Shinji Shimada ◽  
Takeshi Horie
Keyword(s):  
Dry Matter ◽  
Seed Filling ◽  
Yielding Ability ◽  
Filling Stage ◽  
Soybean Genotypes ◽  
Initial Seed

scholarly journals Effect of Planting Time on Canopy Structure and Biomass Production in Some Soybean Genotypes

1970 ◽  
pp. 25-29
Author(s):  
MK Uddin ◽  
MK Hasan ◽  
AKMA Alam
Keyword(s):  
Plant Height ◽  
Biomass Production ◽  
Dry Matter ◽  
Canopy Structure ◽  
Morphological Structure ◽  
Dry Weight ◽  
Shoot Biomass ◽  
Late Planting ◽  
Planting Time ◽  
Soybean Genotypes

A field experiment was conducted in the Field Laboratory of the Department of Crop Botany, BAU, Mymensingh during November 2003 to May 2004 to assess the effect of planting time (November and December) on some morphological structure, and root & shoot biomass production in four soybean genotypes (GPB-1, GPB-2, AGS-332 and AGS-11-35). The plant height, stem base diameter, seed dry weight plant-1 were significantly greater in the late planting crops (December) but number of branches plant-1, number of leaves plant-1, leaves dry weight plant-1, shoots dry weight plant-1, roots dry weight plant-1, total dry matter plant-1 were also significantly greater in November planting. Highest plant height, branches plant-1 and leaves plant-1, shoot dry weight plant-1 and total dry matter were found in GPB-2 genotype. Key words: Early and late planting, shoot and root mass, Glycine max. DOI = 10.3329/jard.v5i1.1453 J Agric Rural Dev 5(1&2), 25-29, June 2007

scholarly journals Nodule efficiency of three soybean genotypes inoculated by different methods

2011 ◽  
Vol 48 (No. 8) ◽  
pp. 356-360
Author(s):  
V. Milić ◽  
N. Mrkovački ◽  
M. Popović ◽  
Đ. Malenčić
Keyword(s):  
Nitrogen Content ◽  
Bradyrhizobium Japonicum ◽  
Dry Matter ◽  
Nitrogen Assimilation ◽  
Soybean Seed ◽  
Dry Weight ◽  
Affected Plant ◽  
Whole Plant ◽  
Soybean Genotypes ◽  
Nr Activity

The objective of the study was to investigate how the inoculation of soybean seed (variety Afrodita, and lines NS-L-2016 and NS-L-300168) with strains of Bradyrhizobium japonicum (1, 1a, 2b), Azotobacter chroococcum (3, 13, 14), and GA3 (gibberellic acid) affected plant dry weight, nitrogen content of nodules and whole plant, the enzymes of nitrogen assimilation (NR, GS) and soluble protein content. The highest dry matter mass and nitrogen content were found in the variety Afrodita, followed by line NS-L-300168. The GS and NR activity was increased significantly by all three inoculation treatments relative to the control. In all three genotypes, the highest values for the enzymatic activity were achieved with treatment mixture of B. japonicum and A. chroococcum strains. Each measurement was performed with three replications. The results were processed using variance analysis and the values were tested with the LSD at 5%.

Elevated CO2 during pod filling increased seed yield but not harvest index in indeterminate narrow-leafed lupin

2000 ◽  
Vol 51 (2) ◽  
pp. 279 ◽  
Author(s):  
J. A. Palta ◽  
C. Ludwig
Keyword(s):  
Aqueous Solution ◽  
Elevated Co2 ◽  
Seed Yield ◽  
Harvest Index ◽  
Dry Matter ◽  
Co2 Enrichment ◽  
Dry Matter Accumulation ◽  
Seed Filling ◽  
Water Conditions ◽  
Enriched Co2

Indeterminate narrow-leafed lupin (Lupinus angustifolius L. cv. Merrit) was exposed to enriched atmospheric CO2 during pod-filling to enhance the availability of carbon resources for pod-filling in order to determine whether or not seed-filling, yield, and harvest index are limited by the availability of photosynthetic assimilate. Plants were grown in a glasshouse and the flowers painted with an aqueous solution containing either N6-benzylaminopurine (BAP) or no BAP to generate 2 different numbers of pods per plant. From the time when pods began to fill seeds (≥5 mg/seed) until maturity, plants were exposed to either ambient (350–360 L/L) or enriched (700 L/L) CO2 by enclosing them in 2 transparent, box-shaped tunnels with similar temperatures, light, and water conditions. Whether or not BAP was applied to flowers, CO2 enrichment increased the final number of pods and the number of pods that filled large seeds (≥150 mg) by 20–22 pods/plant. Enriched CO2 reduced to zero the number of pods that had small seeds (≥30–80 mg) and reduced the number of pods with unfilled seeds from 16 to 1 pod/plant. This increased seed yield per plant by 44–66%, but did not affect the harvest index. Harvest index was unchanged because enriched CO2, while increasing pod-filling, also increased pod set and dry matter accumulation on the developing branches. This indicates that an increased availability of carbon resources during-pod filling changed the allocation of assimilates by filling small seeds and producing new branches. The 47–56% increase in dry matter per plant was reflected in the increase in seed yield, which occurred largely through an increased number of pods and seeds per plant. These data support the idea that seed-filling and hence seed yield in well-nodulated, indeterminate narrow-leafed lupin is limited by carbon resources at the stage when the plant is most source-limited, which is during podset and pod-filling.

scholarly journals Yield Response of Soybean (Glycine max L.) Genotypes to Water Deficit Stress

2017 ◽  
Vol 19 (2) ◽  
pp. 51-60 ◽  
Author(s):  
Afsana Mimi ◽  
MA Mannan ◽  
QA Khaliq ◽  
MA Baset Mia
Keyword(s):  
Water Stress ◽  
Water Deficit ◽  
Yield Components ◽  
Dry Matter ◽  
Research Field ◽  
Yield Response ◽  
Water Deficit Stress ◽  
Dry Matter Accumulation ◽  
Soybean Genotypes ◽  
Glycine Max L

An experiment was carried out at research field of Agronomy, Department of Bangabandhu Sheikh Mujibur Rahman Agricultural University, Salna, Gazipur from December 2013 to April 2014. Four soybean genotypes viz. i) G 00022 ii) Galarsum iii) BARI Soybean-5 and iv) G 00197 were grown in the field to evaluate the effects of water deficit stress on dry matter accumulation and yield. Plants were subjected to water stress that is irrigation was withdrawn at Blooming stage (R1) and Full Pod (R4 stages up to maturity. Dry matter accumulation, yield and yield components were reduced by the soil water deficit stress and reduction was higher at R1 stage than R4 stage of water stress. Among the genotypes, G 00022 showed the highest tolerance, while G 00197 was highly susceptible in all the water stress conditions. It was found that higher water deficit stress tolerance in G 00022 was associated with higher accumulation of leaf, stem, root and total dry matter under water stress condition.Bangladesh Agron. J. 2016 19(2): 51-60

scholarly journals Effects of carbon, nitrogen, phosphorus, and potassium on flowering and Fruiting of Glycyrrhiza uralensis

2021 ◽  
Author(s):  
Binbin Yan ◽  
Yan Zhang ◽  
Xiaobo Zhang ◽  
Sheng Wang ◽  
Jie Cui ◽  
...  
Keyword(s):  
Flowering Plants ◽  
Glycyrrhiza Uralensis ◽  
Seed Setting ◽  
Flower Bud ◽  
Bud Formation ◽  
Seed Filling ◽  
N Level ◽  
Filling Stage ◽  
Flower Bud Differentiation ◽  
Flower Bud Formation

AbstractCarbon (C), nitrogen (N), phosphorus (P), and potassium (K) play an important role in flower bud differentiation and seed-filling; however, the effects of these elements on the flowering and fruiting of Glycyrrhiza uralensis Fisch. are not known. In this study, we evaluated the differences in the C, N, P, and K levels between the fruiting and nonfruiting plants of G. uralensis at different growth stages. The correlations between the elements C, N, P, and K and the flower and fruit falling rates, rate of empty seeds, rate of shrunken grains, and thousand kernel weight (TKW) were also determined. The results show that the P and K levels and C:N, P:N, and K:N ratios of flowering plants are significantly higher than those of nonflowering plants; N level of flowering plants is significantly lower than that of nonflowering plants at the flower bud differentiation stage. The number of inflorescences was positively correlated with C and K levels and C:N and K:N ratios. A low level of C, P, and K and high level of N in flowering and pod setting stage may lead to the flower and fruit drop of G. uralensis. The K level is significantly negatively correlated with the rates of empty and shrunken seeds. The N level is significantly positively correlated with TKW. Thus, high levels of C, P, and K might be beneficial to flower bud differentiation, while higher levels of N is not beneficial to the flower bud formation of G. uralensis. Higher levels of N and K at the filling stage were beneficial to the seed setting and seed-filling of G. uralensis.HighlightHigh levels of C, P, and K might be beneficial to flower bud differentiation, while higher levels of N is not beneficial to the flower bud formation of G. uralensis. Higher levels of N and K at the filling stage were beneficial to the seed setting and seed-filling of G. uralensis.

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