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为筛选耐盐花生种质并为花生耐盐遗传基础研究提供材料,选用相对发芽势、相对发芽率、相对发芽指数和盐害率为指标,以0.5%NaCl为胁迫浓度,对128份花生种质进行芽期耐盐性鉴定。结果表明,盐胁迫对花生种子萌发有显著的抑制作用,但盐胁迫的抑制效应因种质不同而存在明显差异;128份种质中,高耐盐种质仅占5%左右。在耐盐评价指标方面,除盐害率或相对发芽率以外,相对发芽指数可以作为评价指标之一。此外,盐胁迫条件下,地方品种的发芽速度高于育成品种。本研究筛选出JS011、JS024、JS125、JS491、JS523、JS524、JS525等7份高度耐盐种质可用于花生耐盐性基础研究的材料。
In order to screen the salt-tolerant peanut germplasm and provide the materials for genetic research of salt-tolerance in peanut, relative germination potential, relative germination rate, relative germination index and salt damage rate were selected as indexes. With 0.5% NaCl as the stress concentration, 128 peanut Qualitative salt tolerance identification bud stage. The results showed that salt stress significantly inhibited the germination of peanut seeds, but the inhibitory effect of salt stress was significantly different due to different germplasm types. Of the 128 germplasm types, the high salt tolerant germplasm only accounted for about 5%. In terms of salt tolerance evaluation index, the relative germination index can be used as one of the evaluation indexes in addition to the salt removal rate or the relative germination rate. In addition, under salt stress, the local varieties germinated faster than the bred varieties. In this study, seven high salt tolerant germplasms including JS011, JS024, JS125, JS491, JS523, JS524 and JS525 were screened for the basic research of salt tolerance in peanut.