【摘要】 在人工气候室设定极端高温条件下,对来源于不同国家和地区的18份处于扬花灌浆期的水稻种质进行耐热性鉴定,并结合大田自然条件下其主要农艺性状表现,对参试水稻种质进行耐热性筛选及初步评价。结果表明,水稻种质间的耐热性存在明显差异,筛选出农艺性状优良,极端耐热种质3份,分别为zy11、zy18和zy67。更多还原

【Abstract】 Under the condition of extreme high temperature set by artificial climate chamber, the heat tolerance of 18 rice germplasms from different countries and regions between heading-flowering stage and grain filling stage was identified. Combining with the main agronomic characteristics of 18 rice germplasms under natural conditions in the field, the heat tolerance screening and preliminary evaluation of the tested rice germplasms were carried out. The results showed that there were significant differences in heat tolerance among germplasms. Three extremely heat tolerant rice germplasms, zy11, zy18 and zy67 were screened out with good agronomic traits.更多还原