Disease Resistance Breeding
AGRONOMY 150
Methods of Plant Breeding I
Laboratory Exercise / IPB Trip 5
Lecture on Disease Resistance and Stress Tolerance Breeding
SAN PASCUAL, ALANGELICO O.
2011-33543
DISEASE RESISTANCE AND STRESS TOLERANCE BREEDING
Breeding for disease and insect resistance on several vegetable species were being conducted in the institute of plant breeding. Stress tolerance breeding is done as an interdisciplinary and intermodule project of the Physiology division and the different breeding modules in the Institute.
The inclusion of tolerance to abiotic stresses into breeding is vital today since climate change is an issue.
Different crops such as in sorghum, eggplant and tomatoes. In screening for drought tolerance, we have to look into osmotic adjustments more so is the drought avoidance. In looking into drought avoidance, the ability to develop longer roots so as to find moisture in the soil is considered. Also, for example in corn, the leaf rolling ability is also observed so as to conserve the limited water in the plant body. In drought, we also see stomatal conductance, closure. The breeders and physiologist do their screening In the greenhouse until the flowering stage. Dry matter is observed as decrement of dry matter is an effect of stress. In screening, they compare the varieties or plants in different treatments, one with well water, or no stress and the other under stress.
Drought is not the only one focused on but also water logging where it is a problem on the rainy months and salinity stress. A collaborative effort is done in stress tolerant varieties. Breeders develop a variety and these varieties were the ones subjected to stress and then screening.
In bittergourd, resistance to a virus, Namamarako which infected plants tends to produce more staminate flowers and bacterial wilt disease caused by R. solanacearum which is exhibited by rapid wilting of the plant but not in the absence of water. The two diseases with also tolerance and resistance to vector
Methods of Plant Breeding I
Laboratory Exercise / IPB Trip 5
Lecture on Disease Resistance and Stress Tolerance Breeding
SAN PASCUAL, ALANGELICO O.
2011-33543
DISEASE RESISTANCE AND STRESS TOLERANCE BREEDING
Breeding for disease and insect resistance on several vegetable species were being conducted in the institute of plant breeding. Stress tolerance breeding is done as an interdisciplinary and intermodule project of the Physiology division and the different breeding modules in the Institute.
The inclusion of tolerance to abiotic stresses into breeding is vital today since climate change is an issue.
Different crops such as in sorghum, eggplant and tomatoes. In screening for drought tolerance, we have to look into osmotic adjustments more so is the drought avoidance. In looking into drought avoidance, the ability to develop longer roots so as to find moisture in the soil is considered. Also, for example in corn, the leaf rolling ability is also observed so as to conserve the limited water in the plant body. In drought, we also see stomatal conductance, closure. The breeders and physiologist do their screening In the greenhouse until the flowering stage. Dry matter is observed as decrement of dry matter is an effect of stress. In screening, they compare the varieties or plants in different treatments, one with well water, or no stress and the other under stress.
Drought is not the only one focused on but also water logging where it is a problem on the rainy months and salinity stress. A collaborative effort is done in stress tolerant varieties. Breeders develop a variety and these varieties were the ones subjected to stress and then screening.
In bittergourd, resistance to a virus, Namamarako which infected plants tends to produce more staminate flowers and bacterial wilt disease caused by R. solanacearum which is exhibited by rapid wilting of the plant but not in the absence of water. The two diseases with also tolerance and resistance to vector