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Abstract
Basil (Ocimumbasilicum L.) is one of the important plants belonging to the genusfamily Lamiaceae (Labiatae), which is used as herbs, spices, and as well as freshvegetables. The present study was conducted to investigate the interaction ofdeficit irrigation, soil texture, and fertilization on yield components ...
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Basil (Ocimumbasilicum L.) is one of the important plants belonging to the genusfamily Lamiaceae (Labiatae), which is used as herbs, spices, and as well as freshvegetables. The present study was conducted to investigate the interaction ofdeficit irrigation, soil texture, and fertilization on yield components and vegetativegrowth of basil variety Keshkeniluvelou, using a factorial experiment based onrandomized complete block design (RCBD) with 18 treatments and 3 replications.Deficit irrigation treatments consisted of three levels of irrigation includingI1=100%, I2=75%, and I3=50% of ETc, and soil texture included sandy loam andloamy soil. Also, 3 fertilizer treatments with 100 percent of the recommended rate(including macro- and micronutrients) (F1), 70 percent (F2), and no fertilizer (F3)were applied to each pot. The ANOVA results showed that effect of irrigation wassignificant, soil texture and fertilizer were not significant, and interaction of soiltexture and fertilizer were significant on plant height, leaf area , leaf dry weight,stem dry weight, and fresh weight of basil, respectively. The tallest plant height(31.42cm), leaf area (109.21cm2), leaf dry weight (0.97 gr), stem dry weight(2.24 gr), and fresh weight of leaf (5.12gr) was obtained in S1I1F3 treatment andthe lowest in the S1I3F3 treatment. Also, the highest seed weight per plant(2.41gr), number of seeds per plant (1822.3), thousand seed weight (1.447gr), andseed yield (42.13 gr/m2) were obtained in the treatment having loamy soil texture,full irrigation, and 100% of the recommended fertilizer rate (S2I1F1), whichshowed the effect of fertilizer on improving the yield of basil.