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将印度梨形孢真菌(Piriformospora indica)接种于受不同干旱胁迫花生幼苗根部,研究接种该真菌对花生抗旱性的影响。试验设置3个处理,分别是:接菌+干旱胁迫处理、未接菌+干旱胁迫处理、未接菌+未干旱胁迫处理(CK)。试验结果表明:接菌+干旱处理后的花生主根长、根鲜重、根干重、茎鲜重、茎干重、叶鲜重、叶干重、叶绿素含量(SPAD值)等农艺性状表现分别为14.96 cm、0.64 g、0.08 g、1.48 g、0.20 g、1.61 g、0.29 g、42.63。与未接菌+干旱处理相比均显著增加,增幅分别为26.8%、25.50%、60%、15.63%、17.65%、15.59%、26.09%、7.43%。与对照相比,在主根长、根鲜重、根干重、茎干重、叶干重、叶绿素含量(SPAD值)等性状方面均没有显著性变化。以上结果说明:在干旱胁迫条件下,接种印度梨形孢真菌能够维持花生正常生长,使得花生从植株外部形态上表现出较强的抗旱性。
Piriformospora indica was inoculated on the roots of peanut seedling under different drought stress to study the effect of inoculation with the fungus on the drought resistance of peanut. Three treatments were set up, namely: inoculation + drought stress treatment, non-inoculation + drought stress treatment, non-inoculation + non-drought stress treatment (CK). The results showed that agronomic traits such as root length, root fresh weight, root dry weight, fresh weight of stem, fresh weight of stem, fresh weight of leaf, dry weight of leaf and content of chlorophyll (SPAD) of the peanut after inoculation + Is 14.96 cm, 0.64 g, 0.08 g, 1.48 g, 0.20 g, 1.61 g, 0.29 g, 42.63. Compared with the non-inoculation + drought treatment, the average growth rate was 26.8%, 25.50%, 60%, 15.63%, 17.65%, 15.59%, 26.09% and 7.43% respectively. Compared with the control, there were no significant changes in root length, root fresh weight, root dry weight, stem weight, leaf dry weight, chlorophyll content (SPAD value) and other traits. The above results showed that in the drought stress conditions, inoculation of Indian pear-shaped fungi can maintain the normal growth of peanuts, making the peanut from the plant morphology showed strong resistance to drought.