THE EFFECTS OF SOIL MOISTURE CONTENT ON THE GROWTH AND DISTRIBUTION OF SORGHUM ROOT SYSTEMS

📂 Agricultural Extension 📄 MS WORD 📑 1-5 chapters 📃 61 pages 👁️ 222 views

Download Full Final Year Project Topic and Materials for FREE. This Project Material contains 61 pages and contains Chapters 1-5

Keywords: Project Topic, Final Year Project Topic, Download Free Project Topic Material, THE EFFECTS OF SOIL MOISTURE CONTENT ON THE GROWTH AND DISTRIBUTION OF SORGHUM ROOT SYSTEMS Project Topic and Materials

ABSTRACT

Irrigation level is believed to influence root distribution along the soil profile. There is no known reason for the phenomena. The aim of this study was to see how water content at the soil surface and around the root crown of sorghum (Sorghum bicolor L. Moench) affects root distribution with depth. The work was done in an experiment where an array of soil surface and deeper soil layer water contents were established under the plant, and their effects on root and plant growth measured. Variable soil water profiles were achieved by growing plants in soilfilled vertical PVC tubes of varied diameters, lengths and distances between the soil surface and a water table. It was found that when the top soil (top 3 cm) was wet (at least above 70% of field capacity) crown roots initiation and establishment proceeded at potential rates, resulting in a large number (14) of crown roots which grew to a depth of 30--40 cm, at 24 days after emergence. Irrespective of deeper soil layer water contents, when the soil surface water content was low, crown root numbers were markedly reduced (from 14 to 6) and existing crown roots increased in length (from 38 to 87 cm), at 24 days after emergence. Total crown roots' length per plant was approximately the same, irrespective of the soil moisture regime. When soil surface moisture was low, plants had several thick distorted crown root initials that apparently did not penetrate the hard dry soil surface. It is concluded that by limiting crown root number per plant, a dry soil surface causes compensatory growth in existing roots, which subsequently reach deeper soil layers. Thus, the soil surface moisture content, as affected by irrigation (or rainfall) frequency, exerts control over sorghum root distribution along the soil profile.

Download Full Project

Get the complete project document.

Download

Source: https://www.iprojectmaster.com/agricultural-extension/final-year-project-materials/the-effects-of-soil-moisture-content-on-the-growth-and-distribution-of-sorghum-root-systems

ACCESSIBILITY AND RELEVANCE OF INFORMATION AND COMMUNICATION TECHNOLOGIES AMONG...

Agricultural Extension 👁️ 202

DESIGN, CONSTRUCTION AND PERFORMANCE EVALUATION OF AN AXIAL-FLOW MILLET THRESHER

Agricultural Extension 👁️ 147

IMPACT OF THE COMMERCIAL AGRICULTURE CREDIT SCHEME ON THE PERFORMANCE OF BENEFIC...

Agricultural Extension 👁️ 181

ANALYSIS OF WOMEN EMPOWERMENT IN CASSAVA PRODUCTION AND PROCESSING AS A MEANS OF...

Agricultural Extension 👁️ 158

OPERATIONAL ANALYSIS OF FAST FOOD OUTLETS

Agricultural Extension 👁️ 173

All Project Topics

📂 Browse by Department