Yield components, harvest index and plant type in relation to yield differences in field pea genotypes

Background: Assessment of genetic variability and inter-relationship between the characters can be used in the breeding programme to evolve new varieties with wide genetic diversity to maximize the yield potential in crop improvement programmes. Eighty-four field pea genotypes were evaluated in an augmented block design for thirteen quantitative traits to study variance components, heritability, genetic advance and inter-relationship between the yield and yield contributing traits. Methods: The extent of phenotypic and genotypic variation that exist in a character was calculated by the formula suggested by Burton and de Vane (1953). Heritability in broad sense and genetic advance as per cent of mean for each character was computed using the formula suggested by Hanson et al. (1956) and Johnson et al. (1955), respectively. Correlation coefficient was calculated by method suggested by Searle (1961) and path coefficient analysis done as per method of Wright (1921) and elaborated by Dewey and Lu (1959).Result: Significant differences observed among the genotypes tested for the yield characters indicated the presence of variability. High heritability coupled with high genetic advance as percent of mean was observed for the traits viz., plant height, effective pods plant-1, harvest index and seed yield plant-1 were governed by additive gene effects which will aid in effective selection. Correlation coefficient analysis revealed that seed yield plant-1 had highly significant and positive correlation with biological yield plant-1, effective pods plant-1, harvest index, seeds pods-1 and effective nodes plant-1, indicating that these traits are strongly associated with seed yield in field pea. Path coefficient analysis identified biological yield plant-1 followed by harvest index, seed pod-1, effective nodes plant-1, 100-seed weight and day to 50% flowering as highly desirable components with great direct effects on seed yield.

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Effect of spatial arrangement on the production components and yield of sunflower

Revista CERES ◽

10.1590/0034-737x201663020013 ◽

2016 ◽

Vol 63 (2) ◽

pp. 214-222

Author(s):

Francisco Thiago Coelho Bezerra ◽

Alek Sandro Dutra ◽

João Bosco Pitombeira

Keyword(s):

Yield Components ◽

Harvest Index ◽

Polynomial Regression ◽

Block Design ◽

Spatial Arrangement ◽

Biodiesel Production ◽

Plant Science ◽

Oilseed Crop ◽

Randomized Block Design ◽

Crop Cycle

ABSTRACT The sunflower plant is an oilseed crop that has aroused a great interest in the Brazilian and international scenery especillay because of the possibility of using its oil for biodiesel production. The objective of this study was to evaluate productivity and yield components of Embrapa 122 sunflower according to the spatial arrangement. Treatments were arranged in 4 x 4 factorial arrangement, which are the four spacings between rows (0.30; 0.50; 0.70 and 0.90 m) and four sowing densities (30,000; 45,000; 60,000 and 75,000 plants ha-1). The experiment was carried out in a complete randomized block design with four replications. The experiments were conducted in the experimental area of the Plant Science Department in Fortaleza, State of Ceará-Brazil and on the Curu Vale Experimental Farm in Pentecoste, State of Ceará-Brazil. Productivity and the following production components were analyzed in the end of the crop cycle: harvested capitula, capitulum diameter, capitulum mass, achene mass per capitulum, mass of 100 achenes, achenes per capitulum, harvest index and oil content in the achenes. The experiments were analyzed jointly in relation to the cropping area and the data submitted to analysis of variance and quantitative factors tested by polynomial regression. The variables, spacing, density and cropping area did not interact with these variables and the spatial arrangement of the plants affected only the components. The cropping area influences the productive behavior of sunflower Embrapa 122. The spatial arrangement of the plants of sunflower of variety Embrapa 122 influences yield components but does not affect productivity.

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Effect of Phosphorus Levels on Yield Components, Grain Yield and Harvest Index of Two Maize Varieties

Asian Journal of Plant Sciences ◽

10.3923/ajps.2003.800.803 ◽

2003 ◽

Vol 2 (10) ◽

pp. 800-803

Author(s):

Rana Muhammad Iqbal ◽

Hafiz Qutub Iqbal Ch .

Keyword(s):

Grain Yield ◽

Yield Components ◽

Harvest Index ◽

Maize Varieties ◽

Phosphorus Levels

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Growth and Yield Performance of Bari Mung-5 Under Different Time of Sowing

Journal of Bangladesh Academy of Sciences ◽

10.3329/jbas.v36i2.12966 ◽

2012 ◽

Vol 36 (2) ◽

pp. 227-231

Author(s):

Nargis Jahan ◽

M M Golam Adam

Keyword(s):

Seed Yield ◽

Yield Components ◽

Seed Weight ◽

Harvest Index ◽

Dry Matter ◽

Growth And Yield ◽

Lower Yield ◽

Sowing Time ◽

Academy Of Sciences ◽

Pod Length

A field experiment was carried out at University of Dhaka from March to July, 2011 to study the effect of time of sowing on the growth and yield of BARI mung-5. The treatments consisted of three dates of sowing viz. March 15, April 15 and May 15. The crop responded significantly to sowing time and 15 April sowing seeds produced plants having maximum plant height (68.4 cm), leaves/plant (29.33), total dry matter/plant (17.99), branches/plant (8.17), pods/plant (11.33), pod length (8.78 cm), seeds/pod (11.17), 1000 seed weight (46.52 g), seed yield/plant (5.33 g), yield/ha (1.77 t) and harvest index (29.58 %) at harvest. The seed yield decreased by 36.8 and 49.9% when seed sown early (15 March) or late (15 May) due to production of lower yield components. DOI: http://dx.doi.org/10.3329/jbas.v36i2.12966 Journal of Bangladesh Academy of Sciences, Vol. 36, No. 2, 227-231, 2012

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Correlations among the Yield and Yield Components at Segregating Populations Derived from Selection Based on Harvest Index in Bread Wheat

Cereal Research Communications ◽

10.1007/bf03543535 ◽

1999 ◽

Vol 27 (3) ◽

pp. 267-272 ◽

Cited By ~ 2

Author(s):

Necdet Budak ◽

Metin B. Yıldırım

Keyword(s):

Bread Wheat ◽

Yield Components ◽

Harvest Index ◽

Yield And Yield Components

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Quantitative genetic studies of yield, yield components, and phenological and agronomic characters in spring faba bean

Genome ◽

10.1139/g87-029 ◽

1987 ◽

Vol 29 (1) ◽

pp. 169-173 ◽

Cited By ~ 4

Author(s):

H. M. Kao ◽

P. B. E. McVetty

Keyword(s):

Vicia Faba ◽

Faba Bean ◽

Yield Components ◽

Harvest Index ◽

Dry Matter ◽

Diallel Analysis ◽

Diallel Cross ◽

Agronomic Characters ◽

Vicia Faba L ◽

Faba Beans

Hayman's diallel cross analysis was employed to investigate the nature of the genetic control and heritability of yield, yield components, and phenological and agronomic characters in F1 and F2 generations of spring faba beans (Vicia faba L.). High-yielding S4 inbred lines from five open-pollinated faba bean cultivars were used as parents to generate complete F1 and F2 diallels. The S5 inbred line parents and the 20 cross combinations were planted in randomized complete block experiments with six replications. All characters in the F1 diallel and in the F2 diallel with the exception of days from planting to maturity met all of the assumptions required for Hayman's diallel analysis. Yield, total dry matter, harvest index, and pods per plant exhibited significant apparent overdominance in both the F1 and F2 diallels. It is concluded that substantial immediate increases in yield and total dry matter could be expected from exploiting the apparent overdominant gene action found for these characters in these crosses via F1 hybrids or synthetics. Key words: total dry matter, harvest index, diallel crosses, inheritance, Vicia faba L.

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Harvest index increase during seed growth of field pea

European Journal of Agronomy ◽

10.1016/s1161-0301(00)00091-5 ◽

2001 ◽

Vol 14 (3) ◽

pp. 173-180 ◽

Cited By ~ 19

Author(s):

Jérémie Lecoeur ◽

Thomas R Sinclair

Keyword(s):

Harvest Index ◽

Field Pea ◽

Seed Growth

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The optimum foliar zinc source and level for improving Zn content in seed of chickpea

Legume Research - An International Journal ◽

10.18805/lr.v38i6.6731 ◽

2015 ◽

Vol 38 (6) ◽

Author(s):

Nihal Kayan ◽

Nurdilek Gulmezoglu ◽

Mehmet Demir Kaya

Keyword(s):

Plant Height ◽

Seed Yield ◽

Yield Components ◽

Seed Weight ◽

Harvest Index ◽

Foliar Application ◽

Seed Number ◽

Plant Seed ◽

Zn Content ◽

Pod Number

The comparative effect of 0, 0.2, 0.4, 0.6 and 0.8% Zn levels of zinc chelate (Zn-EDTA; 8% Zn) and zinc sulfate (23% Zn) applied as foliar sprays for assuaging zinc deficiency of chickpea cv. Gökçe was evaluated under field condition. The sprays were applied on the plants before blooming stage during 2012 and 2013 growing seasons and seed yield, yield components like plant height, pod number per plant, seed number per plant, hundred seed weight, harvest index and mineral concentrations (nitrogen, phosphorus, zinc and iron) in seeds were investigated. Plant height, pod number per plant, seed number per plant, hundred seed weight, harvest index and seed yield were investigated. The results showed that increased zinc doses caused an increase in Zn content of seed, while seed yield was not affected similarly. In general, plant height, pod number and seed number per plant increased by the application of zinc. Lower dose of Zn-EDTA and higher dose of ZnSO<sub>4</sub> gave higher yield components. Seed weight, harvest index and seed yield were not significantly influenced by Zn sources and doses; however, mineral concentration of seeds enhanced when Zn doses were increased. It was concluded that foliar application of zinc resulted in an increase in seed mineral contents rather than seed yield of chickpea. The dose of 0.6% with Zn-EDTA was the optimum combination for Zn enrichment in seed of chickpea.

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