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南疆是典型的绿洲灌溉农业区 ,研究可靠、灵敏的灌溉生理指标在生产中有重要意义。对高产棉花各生育期叶水势和细胞汁液浓度测定结果表明 ,从蕾期开始叶片水势逐渐下降 ,细胞汁液浓度则呈现相反趋势 ,并初步提出南疆棉花各生育期相应的生理指标。同时研究结果也表明 ,南疆宽膜覆盖栽培棉花在 6月 1 5～ 2 0日为头水灌溉适宜期
Southern Xinjiang is a typical oasis irrigated agricultural area, and it is of great significance to study the reliable and sensitive physiological indexes for irrigation. The results of leaf water potential and cell juice concentration in high-yield cotton showed that the leaf water potential gradually decreased from the bud stage and the cell juice concentration showed the opposite trend, and the corresponding physiological indexes of cotton in different growing stages in southern Xinjiang were initially proposed. At the same time, the results also showed that the cultivation of broad-leaved cotton cultivars in southern Xinjiang was suitable for head-water irrigation from June 15 to 20