PJB-1997-41
EFFECT OF SEAWATER AND NACL SALINITY ON THE IN VITRO GERMINATION OF POLLEN AND TUBE GROWTH OF ATHARANTHUS ROSEUS (L) G. DON.
M. ISHAQ KHAN AND A. KHATOON
Abstract
Gradual and shock treatments of NaCI salinity to wheat (Abdullah et al., 1978) and cotton plant (Abdullah & Ahmed, 1986) are reported to decrease the viability and germination of pollen grain. Sharma et al., (1985) also studied the pollen sterility in two varieties of grapes under different levels of soil salinity and found that increase in salinity from 2 to 8 mmhos/cm decreased the percent viability of pollens by upto 50%. Similarly, an increased spikelet sterility was also found by Murty & Rao (1968) in rice grown under saline conditions. Akbar et al., (1972) are of the opinion that sterility in rice panicles is due to some physiological disorders. The present study describes the in vitro effect of seawater and NaCI salinities on germination of pollen and tube growth of Catharanthus roseus (L) G. Don.
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