24种甜菜基因型对甜菜夜蛾（鳞翅目：夜蛾科）潜在抗性来源的筛选

Screening of Potential Sources of Resistance to Spodoptera exigua (Lepidoptera: Noctuidae) in 24 Sugar Beet Genotypes.

作者信息

Talaee Ladan, Fathipour Yaghoub, Talebi Ali Asghar, Khajehali Jahangir

机构信息

Department of Entomology, Faculty of Agriculture, Tarbiat Modares University, Tehran, Iran.

Department of Plant Protection, College of Agriculture, Isfahan University of Technology, Isfahan, Iran.

出版信息

J Econ Entomol. 2017 Feb 1;110(1):250-258. doi: 10.1093/jee/tow257.

DOI:10.1093/jee/tow257

PMID:28011687

Abstract

Spodoptera exigua (Hübner) is one of the polyphagous pests destroying crops such as sugar beet worldwide. The aim of this experiment was to evaluate the resistance of 24 sugar beet genotypes to S. exigua. In this study, nine sugar beet cultivars (Dorotea, Tous, Persia, Silenta, Jaam, HM1339RZ, Jolgeh, Ekbatan, and SBSI006), three hybrids ((7112*SB36)Sh-1-HSF-5, (7112SB36)Sh-1-HSF-15, and (7112SB36)Sh-1-HSF-16), four lines (FC201, FC301, FC220, and FC221), and eight populations (SB26, SB27, SB28, SB29, SB30, SB33, SB34, and SB35) were assessed. The experiments were performed under laboratory conditions at 25 ± 1 °C, 60 ± 5% RH, and a photoperiod of 16:8 (L:D) h using age-stage, two-sex life table procedure. The larval period ranged from 17.09 d on FC301 to 14.47 d on SB30. The total fecundity (F) was highest on (7112SB36)Sh-1-HSF-5 (905.13 eggs) and lowest on FC301 (312.46 eggs). (7112SB36)Sh-1-HSF-5 and FC220 with 318.02 and 26.76 eggs per individual had the highest and lowest net reproductive rates (R0), respectively. The highest values of the intrinsic rate of increase (r) and finite rate of increase (λ) were on (7112SB36)Sh-1-HSF-5 (r: 0.187 d - 1, λ: 1.205 d - 1) and the lowest were on FC301 (r: 0.104 d - 1, λ: 1.11 d - 1). SB26 (r: 0.185 d - 1, λ: 1.203 d - 1) and FC220 (r: 0.114 d - 1, λ: 1.12 d - 1) had no significant difference with (7112SB36)Sh-1-HSF-5 and FC301, respectively. The comparison of demographic parameters of S. exigua on 24 sugar beet genotypes suggested that FC220 and FC301 were the most resistant and (7112SB36)*Sh-1-HSF-5 and SB26 were the most susceptible genotypes to this pest.

摘要

甜菜夜蛾（Spodoptera exigua (Hübner)）是一种多食性害虫，在全球范围内破坏甜菜等作物。本实验的目的是评估24个甜菜基因型对甜菜夜蛾的抗性。在本研究中，评估了9个甜菜品种（多罗泰亚、图斯、波斯、席伦塔、贾姆、HM1339RZ、乔尔盖、埃克巴坦和SBSI006）、3个杂交种（(7112*SB36)Sh-1-HSF-5、(7112SB36)Sh-1-HSF-15和(7112SB36)Sh-1-HSF-16）、4个品系（FC201、FC301、FC220和FC221）以及8个种群（SB26、SB27、SB28、SB29、SB30、SB33、SB34和SB35）。实验在实验室条件下进行，温度为25±1°C，相对湿度为60±5%，光周期为16:8（光照:黑暗）小时，采用年龄-阶段两性生命表程序。幼虫期从FC301上的17.09天到SB30上的14.47天不等。总繁殖力（F）在(7112SB36)Sh-1-HSF-5上最高（905.13粒卵），在FC301上最低（312.46粒卵）。(7112SB36)Sh-1-HSF-5和FC220个体产卵量分别为318.02粒和26.76粒，净繁殖率（R0）最高和最低。内禀增长率（r）和周限增长率（λ）的最高值出现在(7112SB36)Sh-1-HSF-5上（r: 0.187 d⁻¹，λ: 1.205 d⁻¹），最低值出现在FC301上（r: 0.104 d⁻¹，λ: 1.11 d⁻¹）。SB26（r: 0.185 d⁻¹，λ: 1.203 d⁻¹）和FC220（r: 0.114 d⁻¹，λ: 1.12 d⁻¹）分别与(7112SB36)Sh-1-HSF-5和FC301无显著差异。甜菜夜蛾在24个甜菜基因型上的种群统计学参数比较表明，FC220和FC301是最抗虫的基因型，而(7112SB36)*Sh-1-HSF-5和SB26是对该害虫最敏感的基因型。