【摘 要】
：
春小麦植株干物质的积累动态,在不同年份、品种和栽培条件下趋势相同。积累强度以拔节至灌浆盛期为最大。这一过程出现早晚与品种主茎总叶数密切相关。干物质积累动态,全株、
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春小麦植株干物质的积累动态,在不同年份、品种和栽培条件下趋势相同。积累强度以拔节至灌浆盛期为最大。这一过程出现早晚与品种主茎总叶数密切相关。干物质积累动态,全株、主茎、穗、茎秆和分蘖,均呈S型曲线,可用(?)=K/(1+ae~(bx))或(?)=K/(1+e~((?)-bx))表达。叶片、叶鞘和全叶干物质积累动态呈抛物线,符合(?)=a+bx+cx~2方程。叶干物质积累与叶面积系数和单株(或主茎)叶面积显著相关。统计分析表明,Y_B、Y_V、Y_G和HI之间存在相关,但关系复杂。
The accumulation of dry matter in spring wheat plants showed the same tendency under different years, varieties and cultivation conditions. Accumulation intensity to join the maximum filling age. The emergence of this process is closely related to the total leaf number of main stems. The dynamics of dry matter accumulation showed S-shaped curve in whole plant, main stem, ear, stem and tiller, which could be expressed as (?) = K / (1 + ae ~ e ~ ((?) - bx)). Leaf, leaf sheath and whole leaf dry matter accumulation dynamic parabola, in line with (?) = A + bx + cx ~ 2 equation. Leaf dry matter accumulation was significantly correlated with leaf area coefficient and leaf area per plant (or main stem). Statistical analysis shows that there is correlation between Y_B, Y_V, Y_G and HI, but the relationship is complex.
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