Seed yield can be explained by altered yield components in field-grown western wheatgrass (Pascopyrum smithii Rydb.).

ABSTRACT: Western wheatgrass (Pascopyrum smithii Rydb.) is an important cool-season forage and turfgrass. However, due to seed dormancy and poor seedling vigor, it is difficult to develop high seed yield production systems, and assessing these components in response to seed yield. Based on multifactor orthogonally designed field experimental plots under various field management regimes, the effects of numbers of fertile tillers m^-2 (Y₁), spikelets/fertile tiller (Y₂), florets/spikelet (Y₃), seed numbers/spikelet (Y₄), and seed weight (Y₅) on seed yield (Z) were determined over three successive years. Correlation analysis indicated that fertile tillers (Y₁) was the most important seed yield component. And the biggest contrib

SUBMITTER: Chen Z 

PROVIDER: S-EPMC6884509 | biostudies-literature | 2019 Nov

REPOSITORIES: biostudies-literature