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Variation in Morphological and Reproductive Characters and Their Relationship with Seed Yield of Some Advanced Lentil Mutants

Dr. M. A. Samad
Chief Scientific Officer
Plant Breeding Division, BINA, BAU Campus, Mymensingh-2202

M. M. Yeaqub
MS Student
Dept Crop Botany, Bangladesh Agricultural University, Mymensingh

Prof. Dr. A. K. M. Z. Hossain
Professor
Dept Crop Botany, Bangladesh Agricultural University, Mymensingh

Dr. A. B. Puteh
Professor
Dept Crop Science, University Putra Malaysia, Serdang, Malaysia

Dr. M. Monjurul Alam Mondal
PSO
Crop Physiology Division, BINA, BAU Campus, Mymensingh-2202

Abstract/ Executive Summary:

A field experiment was conducted during November 2008 to March 2009 at the farm of Bangladesh Institute of Nuclear Agriculture (BINA), Mymensingh, Bangladesh with 10 promising lentil mutants along with mother variety BARI Masur-4 with aiming to evaluate some morpho-physiological features, reproductive characters and their impacts on seed yield. Results showed that high yielding mutants have the capacity to produce higher branches number, total dry mass production and leaf area, and better dry matter partitioning to economic yield and also have capacity to produce higher number of flowers than the low yielding ones. Among the 10 mutants, mutants LM-3-5 and LM-6-6 showed superiority in morpho-physiological characters which resulted to produce higher number of flowers and pods plant^-1, and thereby produced higher seed yield than the remaining mutants and the mother variety. Based on the superior morpho-physiological characters, yield attributes and seed yield, LM-3-5 and LM-6-6 might be selected for further trial at different agro-ecological zones of Bangladesh for confirmation the results and registration as varieties.

Keywords: Lentil, Morphological parameters, Mutants, Seed yield

Location: Experimental farms BINA Farm, Mymesingh

Start Date: 00-11-2008

End Date: 00-03-2009

Program Area: Variety and Species

Commodity: Lentil

Objectives:

To evaluate morpho-physiological characters, yield attributes, seed yield and reproductive efficiency of lentil

Methodology:

Ten mutants were selected in M₆ generation derived from BARI Masur-4 through induced gamma mutagenesis. Performance of ten promising mutants viz., LM-6-1, LM-1-2, LM-9-3, LM-7-4, LM-3-5, LM-6-6, LM-5-7, LM-2-8, LM-9-9, LM-1-10 and a check variety of BARI Masur-4 were evaluated at BINA farm during the rabi season of 2008-2009. The experiment was laid out in a randomized complete block design with three replications. Unit plot size was 4 m × 3 m. Phosphorus and potash were provided during the final land preparation at the rates of 60 and 80 kg ha^-1 in the form of triple super phosphate (TSP) and muriate of potash (MP), respectively. The number of opened flowers plant^-1 was recorded from 15 randomly selected pants, 5 from each plot. Reproductive efficiency (Percent podset to opened flowers) was calculated as; follows: % pod set = (Number of pods plant^-1 ÷ Number of opened flowers plant^-1) × 100. Leaf area (LA) was measured by Automatic Leaf Area Meter (Model: LAI 3000, USA). Data on plant height, number of branches, total dry matter, yield and yield attributes were recorded at maturity from 10 random selected plants from each plot. The yield contributing characters were recorded at harvest from ten competitive plants of each plot. For total dry mass, five plants from each plot were separated into roots, stems, leaves and pods, and the corresponding dry weights were recorded after oven drying at 80 ± 2 ⁰C for 72 hours. Harvest index was calculated using the formula: (economic yield/plot ÷ biological yield/plot) × 100. The collected data were analyzed statistically following computer package programme, MSTAT-C.

Source of Information: Bangladesh Journal of Nucalear Agriculture,30: 81-87, 2014

Article Link (Online Journal):

Funding Source:

1. Government

Budget:

Total Budget (Tk.) :

Achievement/Findings:

Two mutants, LM-3-5 and LM-6-6 had superior morpho-physiological characters and thereby seed yield

Knowledge Management: Journal