Show simple item record

dc.contributor.authorSuwarno
dc.contributor.authorSolahudin, Soleh
dc.date.accessioned2010-07-27T06:48:48Z
dc.date.available2010-07-27T06:48:48Z
dc.date.issued1983
dc.identifier.urihttp://repository.ipb.ac.id/handle/123456789/35075
dc.description.abstractSalt tolerance of r i c e plant (Oryza sativa L.) varies among v a r i e t i e s a s well as among growth stages. Laboratory and greenhouse experiments were conducted t o study the v a r i e t a l tolerance during the germination and the seedling stages. The seeds of PB 28 and PB 32, susceptible and tolerant varieties , respectively, were germinated i n petridishes with f i l t e r paper saturated with 0, 0.25, 0.50, 1.00, 2.00, and 4.00 % (W/V) NaC1. The germinating seeds were transplanted to soil culturesalinize d with 0.30 % NaC1. The seeds unable t o germinate i n 10 days were throughly washed t o remove the N a C l and then were germinated in petridishes with filter paper saturated with water. High eoncentrations of NaCl reduced both the germination r a t e and the number of germinating seeds. Low concentrat ions, however, only reduced the germination rate . Not all of the nongerminating seeds could germinate after the washing, indicating a toxic effect of NaC1. Salt concentration did not affect water absorption during the f i r s t two days, but decreased the absorption t h e r e a f t e r . Water absorption was s i g n i f i c a n t l y correlated (P < 0.01) with the s a l t concentration ( r = -0.8782) , the r a t e of germination ( r = 0.9476), and the number of germinating seeds ( r = 0.8669). It was not possible to detect significant varieta1 differences in salt tolerance based on the number of germinating seeds, germination rate , water absorption, dry weight of three-week-old seedlings , or the surviving seedling percentage. Significant differences (P< 0.05) were observed between the two varieties based on the percentage of seeds t h a t germi-nated on water-saturated paper following the 10-day salt treatment. The screening of breeding material for salt tolerance can be done during germination, ietreating the seeds with 2.00 % NaCl for 10 days, and then determining percentage germinat ion on water-saturated paper. However, further experiments should be conducted toverify the finding.id
dc.publisherIPB (Bogor Agricultural University)
dc.relation.ispartofseriesVol.XIV No.3
dc.titleToleransi Varietas Padi terhadap Salinitas pada Fase Perkecambahanid
dc.title.alternativeBuletin Agronomi Vol.XIV No.3


Files in this item

Thumbnail
Thumbnail
Thumbnail

This item appears in the following Collection(s)

Show simple item record