Boll shell percent age resembled a sigmoid curve with flowering stage.

铃壳率变化与开花期呈二次曲线。

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Screened leaf age and MDA content identification indexes of cold tolerance in seeding stage, photosynthetic rate and SOD activity were screened in flowering stage.

在苗期筛选出了叶龄、MDA两个耐冷性鉴定指标，在开花期筛选出了光合速率和SOD活性两个耐冷性鉴定指标。

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He left the customs service in 1979, at the age of 58, and entered into a four-decade long late-flowering career as an artist.

BBC: Obituary: George Wyllie