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Analysis of the Different Parameters for Fruit Yield and Yield Contributing Characters in Strawberry

T. Ara
Department of Botany, University of Rajshahi, Rajshahi-6205

A. Haydar
Department of Botany, University of Rajshahi, Rajshahi-6205

Hyat Mahmud
Additional Agriculture Officer
Upazilla Agriculture Office, DAE, Goalondo, Rajbari

K. M. Khalequzzaman
Senior scientific officer
Regional Agricultural Research Station, BARI, Ishurdi, Pabna, Bangladesh

M. M. Hossain
Department of Botany, University of Rajshahi, Rajshahi-6205

Abstract/ Executive Summary:

The experiment was conducted at Akafuzi Agrotechnologis, Namo Bhadra, Rajshahi, Bangladesh winter season of 2007 to estimate the genetic parameters and character association in seven exotic genotypes of strawberry. Highest genotypic and phenotypic coefficients of variations were observed for number of stolons/plant followed by number of fruits/plant and number of nodes/stolon. High heritability coupled with high genetic advance as percentage of mean was observed for fruit yield, plant height, number of flowers /plant and canopy size. Plant height, number of leaves /plant, number of stolons/plant, number of flowers/plant and number of fruits/plant showed highly significant positive association with fruit yield. Most of the characters exerted negative direct effect on fruit yield and highest direct effect was for number of nodes/stolon.

Keywords: Correlation coefficient, Stolon, canopy size, path analysis, yield, strawberry

Location: Akafuzi Agrotechnologis, Namo Bhadra, Rajshahi, Bangladesh

Start Date: 00-10-2006

End Date: 00-04-2007

Program Area: Crop-Soil-Water Management

Commodity: Strawberry

Objectives:

To establish a rapid in vitro clonal propagation of different strawberry genotypes.
To evaluate their field performance in Bangladesh condition.

Methodology:

Runner tips/nodal segments were collected from 40-45 days old field grown strawberry mature plants. Fresh nodal segments/runner tips were collected from strawberry mature plants during the last week of October 2007 from Plant Breeding and Gene Engineering Lab, Department of Botany, University of Rajshahi, Bangladesh. In the present study seven strawberry genotypes RABI-3, JP-2, JP-3, Camarosa, Sweet Charly, Giant Mountain and Festival were used as plant materials. Plantlets of seven strawberries were planted at Akafuzi Agrotechnologis, Namo Bhadra, Rajshahi, Bangladesh in a Randomized Block Design with ten replications during winter season of 2007 and 25 explants per replication. The fertilizers (Nitrogen 55 kg, P 70 kg, K 65 kg/hectares) and 25 explants were used to ensure optimum plant population. Irrigation and intercultural operations were done for raising good crops. The time of harvest is very important in strawberry. After sowing of strawberry plantlets fruits were collected from the field within 90-100 days. Berries were harvested every day to maintain the quality of the berries. When 2/3 of the berries were become red color then berries was ready to collect. The other standard agronomic practices were followed. Data were recorded under winter field condition on plant height (cm), no. of leaves/plant, no. of stolons/plant, no. of nodes/stolon, canopy size (cm²), days to flowering, no. of flowers/plant, no. of fruits/plant and fruit yield/plant (gm/p). The recorded data were statistically analyzed. Mean values were used for different statistical analysis. Analysis of variance and genotypic and phenotypic variation were calculated. The phenotypic coefficient of variability (PCV) and genotypic coefficient of variability (GCV) were computed. Estimates of broad sense heritability and genetic advance as percentage of mean (genetic gain=GA %) were computed. Genotypic (rg), phenotypic (rp) correlations were calculated from variance and covariance component . Path coefficient analysis was done.

Source of Information: Int. J. Sustain. Crop Prod. 4(5):15-18, 2009

Article Link (Online Journal):

Funding Source:

1. Government

Budget:

Total Budget (Tk.) :

Achievement/Findings:

High heritability together with genetic advance as percentage of mean for fruit yield, number of fruits/plant, canopy size, number of nodes/stolon and number of stolons/plant. Therefore, selection through the above characters will be effective for the improvement of strawberry. Correlation and path coefficient analysis suggested that during selection more emphasis should be given on number of leaves, number of stolons /plant, number of nodes/stolon and number of fruits/plant, since these characters have high positive correlation and high direct effect on fruit yield.

Knowledge Management: Journal