Introduction
Green revolution is the dispersal of modern agricultural technologies which contributed significantly to the increase of crops production in developing countries in the mid of the 20th century from the 1960s to 1980s, to meet the challenge of the possibilities of starvation due to the increase in the human population and the and the unavailability of food (Wu & Butz, 2004). From then to now cereal production has increased by 200% with a mere 30% increase in land under cultivation and only 100% increase in human population (Pingali, 2012).
The green revolution saw the official formation of a system that allows plant breeders to have access to germplasms in all parts of the world. these germplasm had lines developed from more conventional …show more content…
However, with the use of different agronomic techniques such as planting density among other, production further increase figure 1. It was discovered that when HYV planted in higher density produce more, however, the ideal density to maximize production was never proven (Trethowan et al., 2007). Never the less, the theory for plant density to maximize production was later developed. (Moot, 1993) in filed pea showed the principle axis model (PAM) was develop from analysing the linear relationship between plant weight (PWT) and seed weight (SWT) of different plant density. The PAM was later used in other crops to maximize production (Ayaz, Moot, McKenzie, Hill, & McNeil, …show more content…
While in rice an enzyme that is defective is encoded in the pathway of gibberellin biosynthetic. These genes were responsible for the reduction in lodging (Hedden, 2003).
Table 2 Changes in production input in India, Pakistan and china due to the green revolution adapted from (Wu & Butz, 2004). Changes in Product Quality
The green revolution started with the intention of increasing yields and yield stability. However, with time wheat exportation became significant for many countries which makes it competitive on the global market. many importers are very specific on the quality of the product they receive (Trethowan et al., 2007).
Initially, the semi-dwarf HYV led to a decrease in protein. It was concluded this occur because of the performance difference in the lines used to obtain the semi-dwarf, the protein was diluted in the high concentration of carbohydrates. Never the less as breeding continued protein and net weight has increase insignificantly but the maintaining or improving these values was a significant achievement during genes manipulations to increase yields. As time progress, greater knowledge in the genetic control of yield and quality was understood and successful efforts were made to improve same (Trethowan et al.,
Green revolution is the dispersal of modern agricultural technologies which contributed significantly to the increase of crops production in developing countries in the mid of the 20th century from the 1960s to 1980s, to meet the challenge of the possibilities of starvation due to the increase in the human population and the and the unavailability of food (Wu & Butz, 2004). From then to now cereal production has increased by 200% with a mere 30% increase in land under cultivation and only 100% increase in human population (Pingali, 2012).
The green revolution saw the official formation of a system that allows plant breeders to have access to germplasms in all parts of the world. these germplasm had lines developed from more conventional …show more content…
However, with the use of different agronomic techniques such as planting density among other, production further increase figure 1. It was discovered that when HYV planted in higher density produce more, however, the ideal density to maximize production was never proven (Trethowan et al., 2007). Never the less, the theory for plant density to maximize production was later developed. (Moot, 1993) in filed pea showed the principle axis model (PAM) was develop from analysing the linear relationship between plant weight (PWT) and seed weight (SWT) of different plant density. The PAM was later used in other crops to maximize production (Ayaz, Moot, McKenzie, Hill, & McNeil, …show more content…
While in rice an enzyme that is defective is encoded in the pathway of gibberellin biosynthetic. These genes were responsible for the reduction in lodging (Hedden, 2003).
Table 2 Changes in production input in India, Pakistan and china due to the green revolution adapted from (Wu & Butz, 2004). Changes in Product Quality
The green revolution started with the intention of increasing yields and yield stability. However, with time wheat exportation became significant for many countries which makes it competitive on the global market. many importers are very specific on the quality of the product they receive (Trethowan et al., 2007).
Initially, the semi-dwarf HYV led to a decrease in protein. It was concluded this occur because of the performance difference in the lines used to obtain the semi-dwarf, the protein was diluted in the high concentration of carbohydrates. Never the less as breeding continued protein and net weight has increase insignificantly but the maintaining or improving these values was a significant achievement during genes manipulations to increase yields. As time progress, greater knowledge in the genetic control of yield and quality was understood and successful efforts were made to improve same (Trethowan et al.,