Original video: https://youtu.be/jxKFTGrCA90
Delivered on: 22 April 2024
This video covers two crucial aspects of plant physiology:
1. Plant Mineral Nutrition: Explore the essential role of macronutrients in plant growth and development. Learn about their biochemical functions, deficiency symptoms, and the concept of nutrient interactions (synergism and antagonism).
2. Seed Moisture Content: Understand the critical importance of seed moisture content for seed quality and storage longevity. Explore the factors affecting seed moisture content and the impact of high or low moisture levels on seed viability.
The seed moisture content (MC) is the amount of water in the seed. It is usually expressed as a percentage on a wet weight basis in any seed-testing laboratory. The seed moisture content is the most vital parameter, which influence the seed quality and storage life of the seed. Seed moisture content is closely associated with several aspects of physiological seed quality. For example, it is related to seed maturity, optimum harvest time, mechanical damage, economics of artificial seed drying, seed longevity and insect & pathogen infestation.
The ease or difficulty in moisture management after harvest depends to a great deal on the climatic conditions during seed maturation and harvest. If the natural field environment does the job of drying the seed most storage problems are minimized. If not, drying has to be done artificially, and in some cases this approach can be complex and expensive. In either case, the most important, urgent, and crucial requirement when the seed is being harvested is to measure the moisture content to see it is at a safe level. This simply highlights the importance of moisture. In some crops the urgency is higher than in others and the higher the moisture the greater the urgencysafe for storage of most seeds. If the natural environment does this job you have a masterful production plan. Seeds stored at higher level exhibit increased respiration, which leads to heating and fungal invasion, which leads to poor seed viability and vigor. The higher the moisture content the worse the problem would be if not dried soon. A low moisture content in the seed to be stored, on the other hand, is the best prevention for all moisture derived problems. The lower the moisture content (below 13%), the longer seeds can be stored provided that the moisture level can be controlled throughout the length of storage. It has been reported that seed moisture content of about 6% is optimum for storage of most crop species for maximum longevity. Seed moisture content fluctuates with the changes in relative humidity. However, drying temperature must not eliminate other solutes (other than water) from the seeds.
Keywords: Crop Physiology, Plant Nutrition, Mineral Nutrition, Macronutrients, Micronutrients, Nutrient Deficiency, Seed Viability, Seed Moisture Content, Seed Storage, Seed Quality, Plant Growth, Plant Development, Plant Science, Agriculture, UPM, Lessons, Education
Location:
Faculty of Agriculture, Universiti Putra Malaysia
Fakulti Pertanian, Universiti Putra Malaysia, 43000 Seri Kembangan, Selangor
XPMM+9J Seri Kembangan, Selangor
2.9845517506267742, 101.73803356324866
Attribution 4.0 International — CC BY 4.0 - Creative Commons
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