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Plant-Insect Interactions

Role of defense enzymes and phenolics in resistance of wheat crop (Triticum aestivum L.) towards aphid complex

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Pages 304-311 | Received 09 Apr 2017, Accepted 06 Jul 2017, Published online: 26 Jul 2017

Figures & data

Table 1. SOD activity in developing flag leaves of six test genotypes under infested and uninfested conditions at different growth stages (units min−1 g−1 FW).

Table 2. GR activity in developing flag leaves of six test genotypes under infested and uninfested conditions at different growth stages (nmoles of NADP+ formed/min/g FW).

Table 3. PAL activity in developing flag leaves of six test genotypes under infested and uninfested conditions at different growth stages (µg g−1 FW).

Table 4. PPO activity in developing flag leaves of six test genotypes under infested and uninfested conditions at different growth stages (units min−1 mg−1 proteins).

Figure 1. Change in phenol content in uninfested and infested developing flag leaves of wheat genotypes at different growth stages. Error bars denote ±SD of three replicates, bars with same letter(s) at particular day are not significantly different at P ≤ .05 (CD at 5% between ABC = 0.33; A: timely sown irrigated; B: late sown irrigated; C: timely sown rainfed).

Figure 1. Change in phenol content in uninfested and infested developing flag leaves of wheat genotypes at different growth stages. Error bars denote ±SD of three replicates, bars with same letter(s) at particular day are not significantly different at P ≤ .05 (CD at 5% between ABC = 0.33; A: timely sown irrigated; B: late sown irrigated; C: timely sown rainfed).

Figure 2. Change in proline content in uninfested and infested developing flag leaves of wheat genotypes at different growth stages. Error bars denote ±SD of three replicates, bars with same letter(s) at particular day are not significantly different at P ≤ .05 (CD at 5% between ABC = 0.61; A: timely sown irrigated; B: late sown irrigated; C: timely sown rainfed).

Figure 2. Change in proline content in uninfested and infested developing flag leaves of wheat genotypes at different growth stages. Error bars denote ±SD of three replicates, bars with same letter(s) at particular day are not significantly different at P ≤ .05 (CD at 5% between ABC = 0.61; A: timely sown irrigated; B: late sown irrigated; C: timely sown rainfed).

Figure 3. Change in tannin content in uninfested and infested developing flag leaves of wheat genotypes at different growth stages. Error bars denote ±SD of three replicates, bars with same letter(s) at particular day are not significantly different at P ≤ .05 (CD at 5% between ABC = 0.58; A: timely sown irrigated; B: late sown irrigated; C: timely sown rainfed).

Figure 3. Change in tannin content in uninfested and infested developing flag leaves of wheat genotypes at different growth stages. Error bars denote ±SD of three replicates, bars with same letter(s) at particular day are not significantly different at P ≤ .05 (CD at 5% between ABC = 0.58; A: timely sown irrigated; B: late sown irrigated; C: timely sown rainfed).

Table 5. Meteorological data for different days of flag leaf sampling.

Table 6. Response of tested genotypes against aphid complex.