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采用盆栽试验 ,研究了粉煤灰改良砂姜黑土对冬小麦糖分积累与分配的影响 ,结果表明 ,粉煤灰改良砂姜黑土能使小麦不同器官可溶性糖含量在整个生育时期变化趋势一致 ,即越冬期含量最高 ,返青后含量下降 ;在营养生长为主期 ,叶片可溶性糖含量提高 ;在越冬前促进糖向叶鞘运输 ,越冬期向根、鞘运输 ,从而促进营养器官发育 ;在灌浆期促进可溶性糖向子粒运输 ,且这种促进作用在 1 8× 1 0 5kg·hm-2 范围内 ,与粉煤灰用量呈正相关 不同器官淀粉含量差异较大 ,根系在越冬前含量最高 ,叶片以拔节期含量最高 ,叶鞘则在灌浆盛期含量最高 ,茎秆在收获期含量最高 在收获期 ,茎、叶、叶鞘仍有较高的淀粉含量
The pot experiment was conducted to study the effect of shale black soil amended by fly ash on the accumulation and distribution of sugar of winter wheat. The results showed that the change of soluble sugar content of different organs of wheat could be consistent during the whole growth period, During the vegetative growth period, soluble sugar content of leaves increased; transport of sugar to leaf sheath was promoted before winter and transported to roots and sheaths during the winter to promote the development of vegetative organs; to promote the solubility in the filling stage Sugar transport to the grain, and this promotion in the range of 18 × 105kg · hm-2, and the amount of fly ash was positively correlated with different starch content in different organs, the root system before winter, the highest content of the leaves jointing stage The content of leaf sheath was the highest in the filling stage and the highest content of stem in the harvesting stage. In the harvesting stage, the stem, leaf and leaf sheath still had higher starch content