Abstract
Rice (Oryza sativa L.) belongs to family Poaceae. It is a cereal grain cultivated throughout the world. Rice is one of the largest crop products of Pakistan. In the present study of two varieties of Rice (Oryza sativa L.), Swat Sella and Punjab Basmati varieties were studied in vitro for the assessment of germination and different growth parameters. These varieties were subjected in hydroponic culture to 100mM, 200mM, and 300mM of NaCl and compared with control. The increase in concentration of NaCl adversely affected the seedling germination and growth parameters. The results showed that Swat Sella rice variety showed greater average number of seeds germination, radicle length and plumule length in 100mM, 200mM, and 300mM of NaCl compared to Punjab variety. However, in controlled medium, it was observed that Punjab variety showed higher fresh weight of seedlings, plumule length, root length of plants, shoot length of plants and dry weight of plants in comparison to Swat variety. It can be concluded that the Swat Sella rice variety is better adopted and can grow better in salinity compared to Punjab variety that grows best in non-saline conditions. Keywords: Rice (Oryza sativa L.); Swat sella; Punjab basmati; NaCl; Hydroponic culture http://dx.doi.org/10.19045/bspab.2017.60075
Highlights
Rice (Oryza sativa L.) belongs to family Poaceae
These results showed an agreement with the result of some researchers who specified that salinity stress cases decrease in growth i.e. fresh weight of seedling, radicle length of seedling and plumule length of seedling
The salt stress effect the plant by providing hindrance for absorption of water due to greater osmotic potential out the seedling and lower osmotic potential inside the seedlings so because of which the lower quantity of water is absorbed by the seedling so decreasing the fresh weight of seedling
Summary
Rice (Oryza sativa L.) belongs to family important export items of Pakistan. Poaceae which is considered as cereal grain holds 2.7% of agriculture and 0.6% of GDP and cultivated throughout the world. Rice is the third mostly cultivated plant grows best from the altitude above crop after wheat and maize it is mostly. 25,000 meter above sea level or even at cultivated in the mountain and plain areas of higher altitude. The rice plant is one the Khyber Pakhtunkhwa (KPK). 2009, 7349 hectares of land was cultivated second position after the wheat as a staple with rice [2]
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