Seedling survival of Handroanthus impetiginosus (Mart ex DC) Mattos in a semi-arid environment through modified germination speed and post-germination desiccation tolerance

Seedling survival of Handroanthus impetiginosus (Mart ex DC) Mattos in a semi-arid environment through modified germination speed and post-germination desiccation tolerance.

AbstractUniform rapid seed germination generally forms a great risk for the plant population if subsequent intermittent precipitation causes desiccation and seedling death. Handroanthus impetiginosus can be found commonly in a wide range of biomes within Brazil including those that are semi-arid. Germination and early growth was studied to understand how germinated seeds survive under these str...

Changing desiccation tolerance of pea embryo protoplasts during germination.

Protoplasts were isolated from pea (Pisum sativum L. cv. Alaska) embryonic axes during and after germination to determine whether the loss of desiccation tolerance in the embryos also occurs in the protoplasts. At all times studied, protoplast survival decreased as water content decreased; however, the sensitivity to dehydration was less when the protoplasts were isolated from embryos that were...

Mapping Salinity Tolerance during Arabidopsis thaliana Germination and Seedling Growth

To characterize and dissect genetic variation for salinity tolerance, we assessed variation in salinity tolerance during germination and seedling growth for a worldwide sample of Arabidopsis thaliana accessions. By combining QTL mapping, association mapping and expression data, we identified genomic regions involved in salinity response. Among the worldwide sample, we found germination ability ...

Seedling Germination Stages

Evaluation of salinity tolerance of different clover species at germination and seedling stages

In order to study the effects of salinity stress on growth indices of three clover species including, Trifolium resupinatum, T. alexandrinum, and T. incarnatum, an experiment was conducted as factorial based on a completely randomized design arrangement with three replications. Factors included seven levels of salinity stress (0, 41, 82, 123, 164, 205, and 246 mM) and three clover species. Diff...