Effects of microscopic testa color and morphologyon the water uptake ability and drought tolerance of germination-stage rapeseed (Brassica napus L.).

ABSTRACT: Drought is one of the most important abiotic stressors that affect crop yield. Therefore, the aim of the present study was to investigate correlations between germination-stage drought tolerance and the microscopic testa (i.e., seed coat) characteristics (color and papilla morphology) and imbibition abilities of 35 rapeseed (Brassica napus L.) accessions. After 2 h imbibition, seed water uptake (fresh weight increase) was significantly positively correlated with testa hue (H_HSB), brightness (B_HSB,), blue (B_RGB), and lightness (L*), with correlation coefficients of 0.38, 0.34, 0.53, and 0.36, respectively, and significantly negatively correlated with saturation (S_HSB), greenness-redness (a*), bluene

SUBMITTER: He Zhu Z 

PROVIDER: S-EPMC8809997 | biostudies-literature | 2021 Dec

REPOSITORIES: biostudies-literature