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The objective of this investigation is to determine the influence of attack intensity of pod sucking pest, to the yield of superior varieties of soybean in drought stress conditions. The researchhas been carried out in the greenhouse of the Faculty of Agriculture, University of Mataram. Experiments have been designed by using completely randomized design with treatment consist of eight soybean varieties namely Anjasmoro, Panderman, Burangrang, Lawit, Argomulyo, Kaba, Tanggamus and Grobogan. The parameters measured were: 1) starting time of flowering age, 2) Attack intensity3) plant resistance; 4) plant height; 5) number of pods; 6) number of seeded pods; 7) number of empty pods because of pests; 8) the number of empty pods because of drying; 9) the number of seeds per plant; 10) weight of 100 seeds; 11) and grain yield per plant; 12) water needs. Data analysis of the studies were performed using ANOVA on the significance level of 5 percent, continued by Honestly Significant Difference (HSD) 5%. The results showed that 1) the decrease of weight 100 seeds of each varieties are proportional to the intensity of pest attacks  Riptortuslinearis . Burangrang (moderate resistance), the intensity of attack is 22.35%, the decrease of product is 27% followed by Anjasmoro (moderate resistance), the intensity of the attacks 29.07%, the decreased of product is 31.01%; Grobogan (moderate susceptible), the intensity of attack is 37.88%, the decreased of product is 35.71 %; Argomulyo (moderate susceptible), the intensity of attack is 38,32%, the decrease of product is 40,98 % Panderman (very susceptible), the intensity of the attacks 72,87%, the decreased of product is 60,02%; Kaba (very susceptible), the intensity of attack is 85,77%, the decreased of product is 64,92 %; Tanggamus (very susceptible), the intensity of attack is 86,87%, the decrease of product is 67,40 %, and Lawit (very susceptible), the intensity of attack is 89,41%, the decrease of product is 68,03 %. 2) Varieties with a higher level of resistance and produced the highest weight of 100 seeds. Varieties with a higher level of resistance and produced the highest weight of 100 seeds is Burangrang 7.57 g followed by Anjasmoro 6.23 g; Grobogan 6.04 g; Argomulyo 5.76 g; Panderman 4.39 g; Kaba 2.14 g; Tanggamus 2.08 g and Lawit 1.95 g.

Influence of attack intensity of Sucking Pod (RiptorusLinearis), to the Yield of Superior Soybean Varieties in Drought Stress Condition