Salt Tolerance Potential of Some Selected Fine Rice Cultivars

Shabbir, Ghulam; Hussain, Nazir; Bhatti, Muhammad Khalid; Ahmad, Afzal; Javed, Muhammad Aslam; Shakir, M. A.

doi:10.3923/jbs.2001.1175.1177

J. of Biological Sciences

2001

DOI: 10.3923/jbs.2001.1175.1177

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Salt Tolerance Potential of Some Selected Fine Rice Cultivars

Ghulam Shabbir¹,

Nazir Hussain²,

Muhammad Khalid Bhatti³

et al.

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Cited by 7 publications

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Indica rice varietal development in Pakistan: an overview

Bashir

Khan²,

Rasheed

et al. 2007

Paddy Water Environ

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Pakistan is well known for its basmati rice with long grain and aroma, as well as for non-basmati indica varieties; however average yield is lower as compared with other countries. Besides, cultural practices, the main reason for low productivity in Pakistan is that, local varieties are susceptible to different biotic and abiotic factors like insect pests, diseases, drought, and salinity. Different approaches have been undertaken in Pakistan to tackle these problems through traditional breeding of selection and crossing, mutation breeding, somaclonal variation as well as plant transformation studies in recent past. For variety development, the most successful examples arose from traditional breeding that produced famous basmati varieties like Basmati 370, Basmati 385 and Super basmati, and nonbasmati varieties such as IRRI-6, DR-82, DR-83, DR-92, Swat-I and Swat-II, which earn a significant share of foreign exchange every year. Six varieties have also been developed through mutation breeding, and one through exploitation of somaclonal variation but their contribution to the national economy is not significant. On the other hand, no variety has been registered as commercial by plant transformation groups. This review discusses the problems and prospects of rice breeding with special emphasis on basmati rice in Pakistan particularly in Pakistani Punjab (a major producing area), as well as focuses on future research programs.

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Indica rice varietal development in Pakistan: an overview

Bashir

Khan²,

Rasheed

et al. 2007

Paddy Water Environ

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Metal Contamination in Nullah Dek Water and Accumulation in Rice

Sarfraz¹,

Mehdi²,

Hassan³

et al. 2007

Pedosphere

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Performance of Rice Genotypes under Temporally Variable Wetland Salinity Conditions of a Semiarid Sub-Saharan Climatic Environment

Awala

Hove

Simasiku

et al. 2023

Land

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In semiarid regions, soil salinity, like drought, restricts crop productivity, causing food shortages among most inhabitants—the smallholder subsistence farmers. Seasonal wetlands formed in these regions during the rainy seasons could be utilised for rice (Oryza spp.) cultivation to increase food security, but rice is sensitive to salinity. Field and greenhouse-pot experiments were performed at the University of Namibia-Ogongo Campus, North-Central Namibia, to evaluate rice genotypes’ responses to seasonal wetland salinity. The field experiments assessed 16 rice genotypes for growth during the dry season and grain production during the rainy season, in saline and non-saline (control) seasonal wetlands. The saline-wetland salinity was predominantly NaCl; electrical conductivity levels increased from 2.8 dS m−1 (rainy season) to 34.3 dS m−1 (dry season), resulting in a 0–14% dry-season plant survival rate. The rainy-season wetland salinity decreased paddy yields in all rice genotypes; however, Pokkali produced the highest paddy and relative yields. The pot experiment assessed CG14 (salt-sensitive) and Pokkali (salt-tolerant) genotypes for growth using soils collected bi-monthly from the saline wetland. The rainy-season soil salinity reduced shoot growth in CG14 but did not affect growth in Pokkali, while the dry-season salinity killed both genotypes. The results of this study suggest the possibility of cultivating the salt-tolerant rice genotype, Pokkali, in the saline wetland during the rainy season due to salt dilution; however, the dry-season salinity levels would be detrimental to rice. More salinity-tolerance screening studies are warranted, in order to increase rice production and food security in Namibia and other flood-prone semiarid regions worldwide.

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Salt Tolerance Potential of Some Selected Fine Rice Cultivars

Cited by 7 publications

References 3 publications

Indica rice varietal development in Pakistan: an overview

Indica rice varietal development in Pakistan: an overview

Metal Contamination in Nullah Dek Water and Accumulation in Rice

Performance of Rice Genotypes under Temporally Variable Wetland Salinity Conditions of a Semiarid Sub-Saharan Climatic Environment

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