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Effect of Different Soil Moisture Levels on Growth and Yield Attributes of Some Mustard Genotypes

Md. Saiful Islam
Former MS Student
Department of Crop Botany, BAU, Mymensingh

Dr. M. Tazul Islam
Ex-Director
GTI, Bangladesh Agricultural University, Mymensingh

Dr. Md. Tariqul Islam
Principal Scientific Officer and Head
Crop Physiology Division, Bangladesh Institute of Nuclear Agriculture, BAU Campus, Mymensingh-2202, Bangladesh

Abstract/ Executive Summary:

An experiment was conducted at the pot yard of Bangladesh Institute of Nuclear Agriculture, Mymensingh during October 2002 to January 2003 to assess the effect of different soil moisture levels on growth and yield attributes of some mustard genotypes. Two factors, soil moisture (80% field capacity, 60% field capacity and 40% field capacity) and genotypes (Agrani, Safal and Binasarisha-3) were included in the experiment. The experiment was laid out in a RCBD with three replications. The highest plant height, higher number of branches per plant, maximum number of leaves per plant, maximum leaf area per plant, maximum total dry matter per plant, maximum total leaf chlorophyll content, higher nitrate reductase activity, maximum number of siliquae per plant, maximum number of seeds per siliqua, maximum 1000-seed weight, maximum seed yield per plant and maximum harvest index were found at the 80% FC. The most satisfactory seed yield per plant was obtained from the 80% FC than that of 60% FC> 40% FC. Genotype Agrani showed better performance than other genotypes. Experimental results revealed that seed yield showed significantly positive correlation with the number of siliquae per plant, number of seeds per siliqua and 1000-seed weight.

Keywords: Soil moisture, Mustard, Growth, Yield attributes, Yield

Location: Pot yard of Bangladesh Institute of Nuclear Agriculture (BINA), Mymensingh

Start Date: 00-10-2002

End Date: 00-01-2003

Program Area: Variety and Species

Commodity: Mustard

Objectives:

To study the effect of water stress on different mustard genotypes.
To identify relatively tolerant genotype.

Methodology:

An experiment was conducted at the pot yard of Bangladesh Institute of Nuclear Agriculture (BINA), Mymensingh during October 2002 to January 2003 to assess the effect of different soil moisture levels on growth and yield attributes of some mustard genotypes. Two factors, soil moisture (80% field capacity, 60% field capacity and 40% field capacity) and genotypes (Agrani, Safal and Binasarisha-3) were included in the experiment. The experiment was laid out in a RCBD with three replications. The soil for the experimental pot was collected from BINA farm. Each pot was filled with 7.5 kg of soil. Nitrogen, phosphorus and potassium @ 2.91 g, 1.35 g and 0.5 g pot^-1, respectively were used corresponding to 250 kg urea, 180 kg TSP and 70 kg ha^-1. Seeds were sown on 24 October 2002. Data on morpho-physiological, yield attributes and yield were recorded. The recorded data were compiled and tabulated in proper form and analysis of varience was done following RCBD with the help of computer package program MSTAT-C by Russell (1986). Duncan’s Multiple Range Test (DMRT) was used to compare the differences among the means (Gomez and Gomez, 1984).

Source of Information: MS thesis by MD. SAIFUL ISLAM, Examination Roll No. 02AgCBot.JJ05M, Reg. No. 21642, Session: 1994-95, January-June Semester, 2003, Department of Crop Botany, BAU, Mymensingh

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

The highest plant height, higher number of branches per plant, maximum number of leaves per plant, maximum leaf area per plant, maximum total dry matter per plant, maximum total leaf chlorophyll content, higher nitrate reductase activity, maximum number of siliquae per plant, maximum number of seeds per siliqua, maximum 1000-seed weight, maximum seed yield per plant and maximum harvest index of mustard varieties were found at the 80% FC. The most satisfactory seed yield per plant was obtained from the 80% FC than that of 60% FC> 40% FC. Agrani showed better performance than other genotypes. Interaction between 80% FC and Agrani gave the highest seed yield of mustard. Soil moisture stress at earlier stage had little effects on dry matter distribution. But as the stress continued for longer period, at the later stage dry matter distribution was significantly reduced. Experimental results revealed that seed yield showed significantly positive correlation with the number of siliquae per plant, number of seeds per siliqua and 1000-seed weight. The experiment should be repeated at different locations with varying soil and climatic conditions of the country for final recommendation. From the results showed that genotype Agrani showed better performance under 80% FC.

Knowledge Management: Thesis