Simplified panicle fertilization is applicable to cultivars, but splits are preferred in rice for a higher paddy yield under wheat straw return.

Introduction: The panicle fertilization strategy for japonica and indica rice under wheat straw return (SR) has not been updated, especially on the elaboration of their impacts on spikelet differentiation and degeneration. This study aimed to verify the hypothesis that SR increases spikelet number by reducing spikelet degeneration and to explore the possibility of simplifying panicle fertilization.

Methods: In three consecutive years, four varieties of japonica and indica rice were field-grown in Yangzhou, Jiangsu Province, China.

[Influence of basic thyroid-stimulating hormone levels on outcomes of IVF/ICSI in Qinghai].

Objective: To study basic thyroid stimulating hormone (bTSH) levels impact on outcomes of in vitro fertilization (IVF) or intracytoplasmic sperm injection (ICSI) in Qinghai.

Methods: Totally 282 cases with IVF cycles and 93 cases with ICSI cycles were studied prospectively, according to bTSH level, patients were divided into four groups. Reproduction rate, clinical pregnancy rate, miscarriage rate and live birth rate were studied among four groups.