江苏海涂地区大麦品种耐盐性研究初报

Preliminary Studies on the Salt Tolerance of Barley Cultivars in the Coastal Lands of Jiangsu

本文根据江苏海涂地区的大麦品种的耐盐性研究,明确了大麦的不同品种,耐盐性有显著差异,肯定早熟三号及鉴_1选系属耐盐品种,恩斯296选系亦较耐盐。大麦产量诸因素与土壤全盐量存在负的相关关系。在0—20厘米土层内,不同土层的含盐量与大麦产量之间的相关性,以0—5厘米土层的相关性大于10—20厘米土层。在海涂地区大麦的根系分布在0—20厘米土层内最多,应重视0—20厘米土层含盐量的分析。

Bassing on the studies on salt tolerance of barley cultivars along the coas-tal lands of Jiangsu province, significant differences of salt tolerance amongcultivars tested were ascertained. Early No. 3 and one breeding line selectedfrom Jian-1 were found to be salt tolerant and another barley line selectedfrom Ensi-296 moderately tolerant. yield components showed negative correl-ation with the salt content in the soil. Within the depth of 0--20 cm of the soil profile, the correlation betweenthe yield and the salt content in the upper layer from 0--5 cm was found tobe higher than that in the lower layer from 10--20 cm. Most roots distributein the layer of 0--20 cm in the coastal lands to which due attention of saltassessment needs to be paid.