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EFFECT OF CYCOCEL AND FOLIAR NUTRITION OF NITROGEN AND BORON ON SEED YIELD AND YIELD COMPONENTS OF THREE SOYBEAN CULTIVARS | ||
| The Iraqi Journal of Agricultural Science | ||
| Article 1, Volume 46, Issue 2, 2015, Pages 136-150 | ||
| Authors | ||
| J. M. A. Aljumaily; I. A. Sarhan | ||
| Abstract | ||
| A field study was conducted during Summer seasons of 2012 and 2013 in Al-Naemea Region-Falluja city of Al-Anbar province to study the effect of cycocel and foliar nutrition of nitrogen and boron in the yield of three soybean cultivar. A split -split plot arrangement in randomized complete block design RCBD with three replicates. The cultivars (Sinaea 2, Giza 35 and Giza 22) placed in the main plots. While foliar nutrition with nitrogen and boron (0B+0N, 10B +250N and 20B+500N) Mg.l-1 placed in sub plots. The sup-sup plots were included three concentrations of growth retardant of cycocel (0, 50 and 100) mg.l-1. The soybean cultivars showed a different significant in most of the traits. Cultivar Giza 22 gave the highest number of pod (119.97 and 121.20) pod.plant-1, 100 seeds weight and seeds yield (3.161 and 3.070) t.h-1 for two seasons respectively. Foliar nutrition showed a significant effect in the traits of yield .The concentration (20B+500N) mg.l-1 gave the highest number of pod (119.07 and 123.02) pod.plant-1, fertile Percentage, number of seeds per pod, harvest index and seeds yield (3.075 and 3.099) t.h-1 for two seasons respectively. The concentration 100 mg .l-1 of cycocel record the highest number of pods (126.93 and 132.47) pod.plant-1, harvest index and seeds yield (3.454 and 3.208) t.h-1. A significant interaction between cultivars and foliar nutrition, the cultivar Giza 22 with concentration (20B+500N) mg.l-1 gave the highest number of pods (128.80 and 130.34) pod.plant-1, harvest index and seeds yield (3.251 and 3.507) t.h-1 respectively. The interaction between cultivars and cycocel was significant effect; the cultivar Giza 22 with concentration 100 mg.l-1 gave the highest number of pods (130.85 and 147.10) pod.plant-1. The interaction between cultivar Giza 22 with concentration (20B+500N) mg.l-1 and concentration 100 mg .l-1 of cycocel was significant effect in number of pods (147.27 and 160.53) pod.plant-1 for two seasons respectively, and seeds yield in the first season ( 3.750 t.h-1). | ||
| Keywords | ||
| soybean; foliar nutrition; Growth Regulators; Seed yield | ||
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