水分胁迫和斜发沸石应用对花生产量及水分利用的影响

Effects of water stress and clinoptilolite application on yield and water use of peanut

为探究水分胁迫和斜发沸石应用对花生产量及水分利用的影响,利用滑动遮雨棚开展了花生的盆栽试验。结果表明:水分胁迫极显著降低花生地上部干重,相比W3(轻度胁迫),W1(重度胁迫)和W2(中度胁迫)处理花生地上部干重分别降低24.00%和10.60%;随着斜发沸石的施入,花生地上部干重提高了7.74%,中度水分胁迫、施加斜发沸石处理花生地上部干重最大,中度水分胁迫下,花生产量为38.05±4.82 g,较轻度水分胁迫产量降低了7.69%,为最小降幅,且施加斜发沸石后花生产量为42.37±1.04 g,增产幅度为最大值(25.65%);中度水分胁迫(W2)花生水分利用效率最大(1.50±0.21 g·L^(-1)),且施加斜发沸石后花生水分利用效率达到1.68±0.09 g·L^(-1),成为在数值上推荐获得水分利用效率最优的处理。采用中度水分胁迫和施用斜发沸石能够实现花生节水高产的生产目标。

To explore the influence of water stress and clinoptilolite on peanut yield and water use,peanut pot experiments were carried out in a sliding canopy. The results showed that water stress significantly reduced the ground dry weight of peanut. Compared with W3,W1 and W2 decreased the ground dry weight of peanut by 24.00%and 10.60%,respectively. With the application of clinoptilolite,the ground dry weight of peanut increased significantly by 7.74%,and the interaction between water stress and clinoptilolite. Peanut yield was 38.05±4.82 g under moderate water stress,7.69% lower than that of mild water stress,being the minimum decrease,while it was 42.37±1.04 g with clinoptilolite application and increased by 25.65% which was the maximum value. Water use efficiency of peanut was the highest( 1.50±0.21 g·L^(-1)) under moderate water stress( W2),while it was 1.68±0.09 g·L^(-1) after applying clinoptilolite which was the optimal treatment to get the beat water use efficiency. The moderate water stress and the application of clinoptilolite could achieve the goal of water saving and high yield of peanut.