Seedling Growth of Wheat as Affected by Soil Salinity

Bangladesh Agronomy Journal Pub Date : 2018-06-21 DOI:10.3329/BAJ.V20I2.37087

E. Sultana, M. Hasan, S. Sikder, Rana, F. Alam

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Abstract

An experiment was conducted to evaluate seedling growth of wheat under saline condition. Thirty wheat genotypes were grown in trays containing different levels of salinity (Control, 6 and 12 dSm-1) during October to December, 2013. Seedling emergence index, shoot and root length, shoot and root dry weight were found to be reduced with the increases of soil salinity level but the degree of reduction were not similar for all wheat genotypes. Salt tolerance index (STI) also indicated a wide difference in salt tolerance among the wheat genotypes. Sourav, Gourav, Shatabdi, BAW 1185, BAW 1186, BAW 1187, BAW 1189 and BAW 1193 were more salt tolerance while BAW 1177, BAW 1190 and BAW 1198 showed greater salt sensitivity than the other wheat genotypes at 6 dS m-1. However, at 12 dS m-1, Sourav, Gourav, Shatabdi, Sufi and BAW 1184 showed more salt tolerance and BAW 1183, BAW 1190, BAW 1192, BAW 1194 and BAW 97 provided greater stress sensitivity among the testing wheat genotypes. Considering both saline stress Sourav, Gourav and Shatabdi were found to be salt tolerant and BAW 1190 was saline sensitive wheat genotypes.Bangladesh Agron. J. 2017, 20(2): 53-66

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土壤盐分对小麦幼苗生长的影响

对含盐条件下小麦幼苗生长进行了评价。2013年10月至12月，30种小麦基因型在含有不同盐度的托盘中生长（对照，6和12dSm-1）。幼苗出苗指数、地上部和根部长度、地上部干重和根部干重随土壤盐度的增加而降低，但并非所有基因型的降低程度都相似。耐盐指数（STI）也表明不同基因型小麦的耐盐性差异很大。Sourav、Gourav、Shatabdi、BAW1185、BAW1186、BAW1187、BAW1189和BAW1193表现出更强的耐盐性，而BAW1177、BAW1190和BAW1198表现出比其他基因型更高的盐敏感性。然而，在12dSm-1时，Sourav、Gourav、Shatabdi、Sufi和BAW1184表现出更强的耐盐性，而BAW1183、BAW1190、BAW1192、BAW1194和BAW97在测试小麦基因型中表现出更高的胁迫敏感性。考虑到盐胁迫，Sourav、Gourav和Shatabdi是耐盐的，BAW1190是对盐敏感的小麦基因型。孟加拉国Agron。J.2017，20（2）：53-66

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Bangladesh Agronomy Journal

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审稿时长

10 weeks