黄福钢, 程玲, 何文强, 等. 水分和氮磷钾胁迫处理苗期水稻对褐飞虱抗性的影响[J]. 华南农业大学学报, 2024, 45(2): 247-255. DOI: 10.7671/j.issn.1001-411X.202301008
    引用本文: 黄福钢, 程玲, 何文强, 等. 水分和氮磷钾胁迫处理苗期水稻对褐飞虱抗性的影响[J]. 华南农业大学学报, 2024, 45(2): 247-255. DOI: 10.7671/j.issn.1001-411X.202301008
    HUANG Fugang, CHENG Ling, HE Wenqiang, et al. Effects of water and nitrogen, phosphorus and potassium nutrition stress of rice seedlings on resistance of brown planthopper[J]. Journal of South China Agricultural University, 2024, 45(2): 247-255. DOI: 10.7671/j.issn.1001-411X.202301008
    Citation: HUANG Fugang, CHENG Ling, HE Wenqiang, et al. Effects of water and nitrogen, phosphorus and potassium nutrition stress of rice seedlings on resistance of brown planthopper[J]. Journal of South China Agricultural University, 2024, 45(2): 247-255. DOI: 10.7671/j.issn.1001-411X.202301008

    水分和氮磷钾胁迫处理苗期水稻对褐飞虱抗性的影响

    Effects of water and nitrogen, phosphorus and potassium nutrition stress of rice seedlings on resistance of brown planthopper

    • 摘要:
      目的 探究水源和食物对褐飞虱死亡速率的影响,探究不同浓度养分处理下的水稻幼苗对褐飞虱的抗性和趋避性,为综合应用田间水肥管理防治褐飞虱提供理论依据。
      方法 以感虫水稻品系‘9311’和抗性品系‘BPHR96’为供试材料,观察不同的水源和食物处理 (取食‘9311’茎段,取食‘BPHR96’茎段,有水源的饥饿胁迫以及无水源的饥饿胁迫)对褐飞虱死亡率的影响。在玻璃温室内开展水培试验,设置不同浓度营养液培养水稻幼苗,测定幼苗分蘖数、株高、根长、地上部鲜质量和根鲜质量5个表型性状;并观察侵染后褐飞虱的存活数量、增质量率、蜜露排泄量以及寄主选择数量。
      结果 无食物的情况下,褐飞虱死亡率上升迅速;无水源饥饿胁迫处理的褐飞虱在接虫后48 h全部死亡;接虫216 h时,有水源饥饿胁迫处理的死亡率达到96.8%,取食‘BPHR96’的死亡率达到85.0%,而取食‘9311’的死亡率也始终维持较低水平(44.3%)。营养液水培试验发现,与对照和高浓度氮磷钾营养液处理相比,低浓度氮磷钾营养液虽然对水稻幼苗的生长有所抑制,但能显著降低褐飞虱的存活数量、增质量率、蜜露排泄量以及寄主选择数量,且抗性水稻品系的效应更为明显。相比于低浓度钾营养液处理,对照和高浓度钾营养液处理能显著促进水稻幼苗的生长,但未发现钾浓度对褐飞虱的取食响应有显著影响。
      结论 充足的水分是保证褐飞虱维持生命活动的首要因素,其次才是食物的适口性。低浓度氮磷钾处理能够降低褐飞虱对水稻的危害,高浓度氮磷钾处理则利于褐飞虱的侵害,水稻大田生产过程中可通过水肥管理对褐飞虱进行综合防治。

       

      Abstract:
      Objective To provide theoretical basis for the comprehensive application of field water and fertilizer to control brown planthopper (BPH), we investigated the effect of water and food on the mortality rate of BPH, and rice seedlings treated with different nitrogen, phosphorus and potassium mass concentrations on the antixenosis and antibiosis of BPH.
      Method The BPH mortality under water or food treatments (‘9311’ stem segments, ‘BPHR96’ stem segments, starvation stress with water or without water) was detected with susceptible rice line ‘9311’ and resistant line ‘BPHR96’. Rice seedlings were cultured with low/control/high nitrogen, phosphorus and potassium or low/control/high potassium concentrations nutrient solution in a greenhouse. Five seedling traits including tiller number, plant height, root length, aboveground fresh weight and root fresh weight and BPH survival number, BPH growth rate, honeydew excretion score and host selection number were detected.
      Result The BPH mortality increased rapidly in the absence of food. All the BPH treated without food and water died at 48 h after infestation. The mortality was 96.8%, 85.0%, and 44.3% treated with water, ‘BPHR96’ or ‘9311’ stem segments, respectively at 216 h after infestation. Comparing with control or high concentration of nitrogen, phosphorus and potassium, low concentration restricted the growth of rice seedlings, but significantly reduced the survival number, weight gain, honeydew excretion and host selection number of BPH. The effect was more obvious for the resistant rice line. Furthermore, control and high concentration of potassium had no significant effect on the growth of BPH except for rice seedlings compared to low potassium.
      Conclusion Water is the primary factor for BPH survival, followed by the palatability of food. Low concentration of nitrogen, phosphorus and potassium treatment can reduce BPH damage to rice seedlings, while high concentration of nitrogen, phosphorus and potassium is beneficial to the invasion of BPH. Therefore, water and fertilizer managements can be applied to the comprehensive control of BPH in the process of rice production.

       

    /

    返回文章
    返回