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The study was to screen forage oat ( Avena sativa) varieties (lines) suitable for planting and utilization in Chongqing. The experiment studied the production performance, nutritional quality and disease resistance of 19 oat varieties, and used the grey correlation method for comprehensive evaluation. The results showed that Qingmu No.3 had the highest hay yield (1.26 kg/m²), which was significantly higher than other varieties except Baiyan No. 3 and other nine varieties ( P<0.05). The nutrient composition analysis showed that the variation of crude protein content was the largest (27.23%), among which Qingyin 2 had the highest crude protein content (21.87%), and the average crude protein of 19 varieties was 13.52%. Disease resistance analysis showed that high resistance varieties (HR) were Taike and Dahan, and eight varieties with disease resistance grade or above, and no rust immune varieties were found. The oat varieties with better performance were screened out by the comprehensive evaluation of grey relational degree method: Kanyan No. 4, Baiyan No. 3, Qingmu No. 3. The study indicates that Kanyan 4, Baiyan 3 and Qingmu 3 are suitable for promotion and utilization in Chongqing area. [ABSTRACT FROM AUTHOR]

Objective·To assess the cardiopulmonary exercise capacity in patients with breast cancer after neoadjuvant chemotherapy in the early stage and explore possible factors leading to the reduced functional tolerance in those patients. Methods·Fifty-two consecutive patients suffering from breast cancer and receiving neoadjuvant chemotherapy were included and completed cardiopulmonary exercise testing (CPET), laboratory tests, electrocardiograph and echocardiography after 1 cycle of chemotherapy in the Department of Cardiology, Renji Hospital, Shanghai Jiao Tong University School of Medicine from September, 2020 to May, 2021. Fifty-two healthy age-, gender- and body mass index (BMI)-matched volunteers were enrolled and received CPET as the control group. The general conditions, hematological biomarkers, electrocardiogram and echocardiography of the subjects in the two groups were collected and recorded. Results·Compared to the control group, the group of patients receiving neoadjuvant chemotherapy had reduced peak VO2 [(18.22±3.48) mL/(min·kg) vs (22.80±3.13) mL/(min·kg), P=0.000], anaerobic threshold [(12.09±2.35) mL/(min·kg) vs (14.93±2.60) mL/(min·kg), P=0.000] and oxygen pulse [(7.67±1.45) mL/beat vs (8.87±1.29) mL/beat), P=0.000]. On multivariable regression analysis, BMI was independently associated with peak VO2 (β = - 0.528, P=0.047) of patients in the early stage of neoadjuvant chemotherapy. Conclusion·Decreased cardiopulmonary function could be detected in the early stage of neoadjuvant chemotherapy on patients with breast cancer via CPET. High BMI can be an independent predictor of the reduced peak VO2 . Maintaining BMI at normal level by losing weight may help to improve patients' cardiopulmonary function and long-term cardiovascular prognosis. [ABSTRACT FROM AUTHOR]