The pre-harvest factors influencing postharvest quality are frequency of irrigation, use of fertilizers, pest control, growth regulators, climatic conditions like wet and windy weather, natural climates such as hailing, high wind velocity, heavy rainfall, and tree conditions (age, training pruning, light penetration, …
What are the factors that affect harvesting?
While the major factor determining the time of harvest is the maturity of the crop, other factors such as weather, availability of harvest equipment, pickers, packing and storage facilities, and transport are important considerations.
What are pre-harvest practices?
Pre-harvest practices that will increase the shelf-life and freshness of vegetables. … Quality, including freshness and shelf-life, the length of time produce remains fresh and saleable, is a critical issue for vegetables, which typically withstand the stresses of the farm to fork supply chain operations.
What is pre harvesting and harvesting?
A pre-harvest system may be defined as a system of existing technologies for agricultural raw materials production. … In the system of traditional agriculture that predominates in developing countries, pre- and post-harvest technologies are usually of different social and economic structure.
What are the 5 factors for timely harvesting of fruits?
Answer: water content, respiratory rate,ethylene production,endogenous plant hormones,and exogenous factors such as microbial growth, temperature,relative humidity and atmospheric compositions.
What are the four causes of harvest loss?
Main causes of postharvest loss include lack of temperature management, rough handling, poor packaging material, and lack of education about the need to maintain quality . Postharvest management starts with pre-harvest managements.
What are harvesting tools?
The hand sickle is used to harvest crops like wheat, maize, barley, pulses and grass etc. Big sickle (Darat) is used to harvest fodder from trees. Gandasa (chopper) and axe are used to harvest crops like sugar-cane etc.
Why do we perform pre-harvest operation?
To maintain desirable species composition of the forest after harvesting and a viable residual stand. To minimise canopy openings in areas where they would allow the development of vines, weeds and lower-value pioneer species.
What is immature harvesting?
The single most important factor in silage production is plant moisture content at harvest. … Silage is a fermented or “pickled” product. The fermentation process involves bacteria converting plant sugars into lactic acid.
Why pre harvesting is important?
Pruning provides favorable conditions for fruit growth; proper pruning reduces competition between fruit, enables more light to reach the plants, prevents diseases and thus reduces losses.
What characteristics of fruit are considered harvesting?
Shape: The shape of fruit can change during maturation and can be used as a characteristic to determine harvest maturity. For instance, a banana becomes more rounded in cross-sections and less angular as it develops on the plant.
What characteristics of commodity are considered when harvesting?
Factors such as size, color, content of sugar, starch, acid, juice or oil, firmness, tenderness, heat unit accumulation, days from bloom, and specific gravity can be used to schedule harvest. Vegetable producers should gather as much information as possible on maturity indices for their particular commodities.
What is the difference between harvest and postharvest?
In agriculture, postharvest handling is the stage of crop production immediately following harvest, including cooling, cleaning, sorting and packing. … Postharvest treatment largely determines final quality, whether a crop is sold for fresh consumption, or used as an ingredient in a processed food product.
Which two factors determine whether the crop is ready for harvesting?
Explanation: The availability of moisture and irrigation facilities decide the choice of the crop to be cultivated after one harvest. If crop rotation is done properly then two or three crops can be grown in a year with good harvest.
What is timely harvesting?
Timely harvesting ensures good grain quality and high market value. Harvesting too early will result in a higher percentage of unfilled or immature grains, which will lower the yield and cause higher grain breakage during milling. Harvesting too late will lead to excessive losses and increased breakage in rice.
What are the stages of harvesting?
- Reaping – cutting the mature panicles and straw above ground.
- Threshing – separating the paddy grain from the rest of cut crop.
- Cleaning – removing immature, unfilled, non-grain materials.
- Hauling – moving the cut crop to the threshing location.