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本文探讨了水分胁迫对结荚期花生荚果发育的影响。为期两年(1997/98和1998/99)的试验是在农牧学院(国立R姫oCuarto大学)试验场开展的。目的是量化与水分胁迫有关的物候因子的变化与花生荚果发育的关系。试验采用的是生育期为150d的兰娜型花生品种。荚果发育水平分别通过成熟度和荚果干重两方面来定性和定量衡量。水分胁迫对荚果发育的影响表现为改变发育起始阶段时间、荚果发育速率和生育期、成熟度和最终产量。两年的试验结果相似,主要结果取自处理S2(开花下针期进行干旱处理),包括花期延长,下针结果期延迟11～13d,降低荚果发育速率(11.5～12.6mg·d 1,对照为17.0mg·d 1),以及降低荚果最终产量。
In this paper, the effects of water stress on the development of peanut pods during the podding stage were discussed. The two-year trial (1997/98 and 1998/99) was conducted at a pilot farm of the Farming and Pasture Institute (Rugaku University National). The purpose is to quantify the relationship between changes in phenological factors associated with water stress and peanut pod development. The experiment used Lanna type peanut varieties with a growth period of 150d. Pod developmental levels were qualitatively and quantitatively measured by maturity and pod dry weight, respectively. The effects of water stress on the development of pods were as follows: initial stage of development, pod development rate, growth period, maturity and final yield. The results of the two years were similar. The main results were obtained from treatment S2 (flowering under needle for drought treatment), including prolonged flowering, delay of 11-13 days of fruiting of lower needle and reduction of pod development rate (11.5-12.6 mg · d 1) 17.0 mg · d 1), and reduce the final yield of pods.