Potluri, Sasikala D.; Devi Prasad, P.V.
Author Affiliation, Ana.
Life Sciences (Botany and Zoology); Faculty of Pure and Applied Sciences
Salinity effects on in vitro performance of some cultivars of potato
Brazilian Journal of Plant Physiology
Date of Publication
Ten cvs of potato (Solanum tuberosum L) were assessed for their response to salinity stress under in vitro conditions using axillary bud cultures. Generally, shoot height was more affected than dry matter accumulation, and more proline accumulated in the stem than in the root and leaf. Proline accumulation was either positively or negatively correlated with protein content, suggesting that the additional proline accumulation was not always due to breakdown of existing protein or at the expense of normal protein synthesis. Accumulation of high levels of sodium and potassium due to salinity in many cultivars suggests unregulated ion flow due to damage to or non-development of the root system, and membrane destruction in other tissues. Based on both morphological and physiological characters, the commerciaally used cvs Desiree and Kennebec are classified as moderately salt tolerant.....