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Evaluation of Tomato Mutants Based on Morphological, Growth, Biochemical, Reproductive, Yield Attributes and Yield

Mrinal Kanti Jhan
Former MS student
Department of Crop Botany, Bangladesh Agricultural University, Mymensingh, Bangladesh

M. Monjurul Alam Mondal, PhD
Principal Scientific Officer
Crop Physiology Division, Bangladesh Institute of Nuclear Agriculture, BAU Campus, Mymensingh-2202, Bangladesh

Prof. Dr. A. K. M. Azad-ud-doula Prodhan
Professor
Department of Crop Botany, Bangladesh Agricultural University, Mymensingh, Bangladesh

Abstract/ Executive Summary:

A field experiment was conducted to investigate some morphological, growth, reproductive characters, yield attributes and fruit yield in ten tomato mutants/varieties. They were Binatomato-4, Binatomato-5, TM-113, TM-127, TM-128, TM-131, TM-132, TM-133, TM-134 and TM-160. In general, high yielding genotypes showed superior performance in leaf area, total dry mass production, absolute growth rate, nitrate reductase activity and total sugar content in leaves, number of flower cluster and flowers plant^-1 which resulted higher number of fruits plant^-1 compared to low yielding ones. Chlorophyll and reproductive efficiency had no contribution to fruit yield. Fruit yield had highly significant positive correlation with leaf area, total dry mass, absolute growth rate, number of flower clusters and fruits plant^-1. On the other hand, fruit size had significant negative association with fruit number. This result indicates that the improvement of fruit number plant^-1 could be achieved by selecting increased number of effective flower cluster plant^-1. The mutant, TM-133 maintained superiority in most of the yield related traits and produced the highest fruit yield (100.1 t ha^-1).

Keywords: Tomato, Morpho-physiological characters, Biochemical components, Yield attributes, Yield

Location: Research farm, BINA, Mymensingh

Start Date: 22-10-2009

End Date: 28-03-2010

Program Area: Variety and Species

Commodity: Tomato

Objectives:

To assess the performances of eight tomato mutants along with two local improved varieties on the basis of morpho-physiological features and yield attributes; and to select better genotypes based on yield performance and other superior characters.

Methodology:

A field experiment was conducted at the experimental farm of Bangladesh Institute of Nuclear Agriculture (BINA), Mymensingh, during the period from October 2009 to March 2010 to investigate some morphological, growth, reproductive characters, yield attributes and fruit yield in ten tomato mutants/varieties. They were Binatomato-4, Binatomato-5, TM-113, TM-127, TM-128, TM-131, TM-132, TM-133, TM-134 and TM-160. The experiment was laid out in a Randomized Complete Block Design (RCBD) with three replications. Urea, triple super phosphate (TSP), muriate of potash (MP), gypsum and cowdung were applied at the rate of 280, 250, 180, 80 and 10000 kg ha^-1, respectively (BARC, 2005). Total amount of TSP, MP, gypsum and cowdung were applied as basal doses during final land preparation. Half of urea was applied as top dress at 21 days after transplanting and rest half was applied at 45 days after transplanting. The 25-day old seedlings were transplanted in the experimental plot on November 2007. Unit plot size was 3.5 m x 4.0 m. Plant spacing was 50 cm for plant to plant and line to line distance. Recommendated cultural practices were followed for plant growth and development. Photosynthesis, chlorophyll, nitrate reductase, total sugar were determined at 55-60 DAT. At harvest, morphophysiological, phenological, reproductive, yield and yield contributing characters were recorded. The collected data were analyzed statistically.

Source of Information: MS Thesis by MRINAL KANTI JHAN, Examination Roll No. 09Ag. CBot. JJ-06M, Semester: January-June 2010, Registration No. 34916, Session: 2009-10, Department of Crop Botany, Bangladesh Agricultural University, Mymensingh, Bangladesh

Article Link (Online Journal):

Funding Source:

1. Government

Budget:

Total Budget (Tk.) :

Achievement/Findings:

Three mutants viz., TM-128, TM-131 and TM-133 performed good regarding growth, biochemical and yield contributing characters and yield; and the mutant TM-133 performed the best regarding fruit yield with medium size fruits.

Knowledge Management: Thesis