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全铃期日均温 1 9.5℃和夜均温 1 7.0℃以上时α角随铃龄增大不断宽化 (变大 ) ,低于该范围时α角随纤维发育不断变小 (优化 )。φ角和ψ角随纤维发育不断优化 (变小 ) ,不同处理相同铃龄随温度降低 φ角与 ψ角值有变大趋势。α、φ及 ψ角值与铃龄呈曲线关系 ,且相关显著。随纤维发育横向晶粒尺寸逐渐增大 ,相同铃龄随温度下降晶粒尺寸值降低 ,横向晶粒尺寸值与铃龄及全铃期日均温呈曲线关系 ,且相关显著。
When the daily average temperature is 9.5 ℃ and the average night temperature is above 7.0 ℃, α angle broadens (becomes larger) with the increase of the boll age. Below this range, α angle decreases (optimizes) with the development of the fiber. φ angle and ψ angle with fiber development continue to optimize (smaller), the same bell-ring age with different treatments to reduce the φ angle and ψ angle values have become larger trend. The values of α, φ and ψ have a curve relationship with the boll age, and the correlation is significant. The transverse grain size increases with fiber development. The grain size decreases at the same boll age with temperature decreasing. The transverse grain size has a curve relationship with the boll age and the average daily temperature of bolls, and has a significant correlation.