Sexual productive characteristic of Seriphidium transiliense community under grazing conditions

A study was conducted to investigate the influence of grazing on representative plant Seriphidiumt ransiliense in Xinjiang desert grassland. The number of components of S.transiliense and other characteristics such as morphology, biomass and their distribution pattern under grazing condition were analyzed. The results showed that individual plant height, bundle of diameter and the ground biomass of S.transiliense decreased under grazing condition compared with the enclosed condition. The distribution ration of stem biomass increased and the distribution ration of leaf and flower (seeds) biomass decreased under grazing condition. The ratio of stem biomass was higher, which induced to lower ratio of flower seeds biomass. The seed setting rate, seed rate per plant, spike length, number of florets of S.transiliense decreased with condition.