Hydroponic Screening of Rice Genotypes for Salinity Tolerance at Seedling Stage| Chapter 3 | Research Highlights in Agricultural Sciences Vol. 8

 The present aims to judge the physiological action of eight rice genotypes resistance to salt stress at seedling stage under hydroponic method. Salinity is a major abiotic determinant that affects edible grain cultivation in the globe along the coastal districts. The salt touched areas in India is supposed to be about 8 to 10 million hectares that causes significant decline in rice progress and yield. In order to improve the edible grain cultivars for salt fortitude, selection of the suitable genotypes is made necessary. The Hydroponics experiment was conducted at Glass apartment, Department of crop physiology, Tamil Nadu land university, Coimbatore.  Study was transported to screen eight rice genotypes (CO 51, ADT 53, ADT 37, IR 64, CO 43, ASD 16, Pokkali; TRY 3) for salinity fortitude at early seedling stage. Results from this study emanated that that seedling limits were reduced under salty conditions, Na+ ion Concentration and Na+/ k+ percentage was higher in salty treatments compared to control. However, K+ ion incorporation decreased accompanying increasing salinity level. Electrolyte outflow and osmotic potential had increasing style with increasing salinity. The edible grain genotypes Pokkali, TRY 3, CO 43 were performed as open-minded; CO 51, ADT 53, ASD 16 were performed as slightly tolerant; ADT 37 was acted as susceptible and IR 64 was performed as well susceptible. Salt persuaded osmotic stress leads to physiological dryness, causes many disorders and injuries in plant. Ion aggregation also causes change in osmotic potential of plant; for fear that such osmotic imbalance and confine the entry of sodium and chloride ions into plants. To found genotypes that are tolerant to seasoning stress during the large plant enclosed in bark and shedding leaves stage and to increase rice growth and yield in consideration of meet national necessities, this kind of research should.

Author(s) Details:

S. Lakshmi,
Department of Crop Physiology, Tamil Nadu Agricultural University, Coimbatore-641 003, Tamil Nadu, India.

V. Ravichandran,
Department of Crop Physiology, Tamil Nadu Agricultural University, Coimbatore-641 003, Tamil Nadu, India.

S. Anandakumar,
Department of Crop Physiology, Tamil Nadu Agricultural University, Coimbatore-641 003, Tamil Nadu, India.

Please see the link here: https://stm.bookpi.org/RHAS-V8/article/view/9259