Limited water resources coupled with the increase of human population calls for more efficient use in irrigated agriculture. Potato (Solanum tuberosum L.) is one most widely grown crops worldwide and very sensitive to stress due its shallow rooting system. With dilemma potato sensitivity drought limited available restricting crop production, researchers growers have been investigating different...

The influence of growth and development temperature on the relative tolerance of photosynthetic tissue to high light stress at chilling temperatures was investigated. Two tuber-bearing potato species, Solanum tuberosum L. cv Red Pontiac and Solanum commersonii were grown for 4 weeks, at either 12 or 24 degrees C with 12 hours of about 375 micromoles per second per square meter of photosynthetic...

In vitro regeneration ability of four varieties potato (Solanum tuberosum) was evaluated for plantlet production applying hormonal concentrations and combinations. Shoot root characteristics were observed at 15 days after inoculation sprout explants. There significant variation found among the treatments in studied traits. The genotype Chollisha exhibited superior performance genotypes. Out tea...

The theory has recently been put forward by Renwick (1972a) that anencephalus and spina bifida are caused by exposure early in pregnancy to potatoes which are affected by blight or are imperfect for other reasons. In support of this, a temporal correlation was claimed to exist between the severity of blight and the frequency of anencephalus, largely because of a strong correlation between the a...

Austral summer frosts in the Andean highlands are ubiquitous throughout the crop cycle, causing yield losses. In spite of the existing warming trend, climate change models forecast high variability, including freezing temperatures. As the potato center of origin, the region has a rich biodiversity which includes a set of frost resistant genotypes. Four contrasting potato genotypes--representing...