INFLUENCE OF POST-POLLINATION WATER DEFICIT STRESS AND NITROGEN ON YIELD, YIELD COMPONENTS AND GRAIN PROTEIN CONTENT OF BARLEY (CV. VALFAJR)

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NASIRI Y.; SHAKIBA MOHAMMAD REZA; AALIARI HOUSHANG; VALIZADEH MOSTAFA; DABAGH MOHAMMADINASAB A.

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Journal: JOURNAL OF AGRICULTURAL KNOWLEDGE Year:2009 | Volume:18 | Issue:4 Page(s): 143-153

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Title

INFLUENCE OF POST-POLLINATION WATER DEFICIT STRESS AND NITROGEN ON YIELD, YIELD COMPONENTS AND GRAIN PROTEIN CONTENT OF BARLEY (CV. VALFAJR)

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Keywords

BARLEYQ2

GRAIN PROTEINQ2

GRAIN YIELDQ2

IRRIGATIONQ2

NITROGENQ2

YIELD COMPONENTSQ2

Abstract

An experiment was conducted usmg randomized complete block design (RCBD) with three replications to evaluate the effect of post-pollination water deficit and NITROGEN fertilizer on yield, YIELD COMPONENTS and GRAIN PROTEIN of BARLEY (var. Valfajr) at the Agricultural Research Station of University of Tabriz in 2005. The treatments were a factorial combination of four levels of IRRIGATION (1-weekly IRRIGATION after pollination, as a control (I1), 2- one IRRIGATION 10 days after pollination (I2), 3- one IRRIGATION 20 days after pollination (I3), and 4- no IRRIGATION after pollination (I4), and four levels of NITROGEN using urea (N1=0, N2=40, N3=80, and N4=120 kgN.ha-1). NITROGEN was applied before pollination equally at the tillering, stem elongation, and heading stages. The results indicated that with increasing NITROGEN applications, the GRAIN YIELD, GRAIN PROTEIN percentage and protein yield were increased. With increasing post-pollination IRRIGATION intervals the GRAIN YIELD was decreased however protein percentage was increased and the protein yield remained unchanged. N fertilizer treatments significantly affected the grain number per spike in main stern, spike number per plant spike number per m2 and main stern spike length. The effect of water shortage on grain number per spike of main stern, 1000-kernal weight, the GRAIN YIELD, and GRAIN PROTEIN percentage was also significant. There was no significant interaction between NITROGEN and IRRIGATION levels for any of the studied characteristics. Since there was no significant difference between the application of 80 and 120 kgN.ha-1 for most studied characteristics, except GRAIN PROTEIN percentage and GRAIN PROTEIN yield, therefore use of 80 kgN.ha-1 seems be suitable to produce an optimum yield at the conditions of this experiment. In addition, because there was no significant difference between the first and second levels of IRRIGATION, only one IRRIGATION at the beginning of pollination stage will be sufficient.

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APA: Copy

NASIRI, Y., SHAKIBA, MOHAMMAD REZA, AALIARI, HOUSHANG, VALIZADEH, MOSTAFA, & DABAGH MOHAMMADINASAB, A.. (2009). INFLUENCE OF POST-POLLINATION WATER DEFICIT STRESS AND NITROGEN ON YIELD, YIELD COMPONENTS AND GRAIN PROTEIN CONTENT OF BARLEY (CV. VALFAJR). JOURNAL OF AGRICULTURAL KNOWLEDGE, 18(4), 143-153. SID. https://sid.ir/paper/29061/en

Vancouver: Copy

NASIRI Y., SHAKIBA MOHAMMAD REZA, AALIARI HOUSHANG, VALIZADEH MOSTAFA, DABAGH MOHAMMADINASAB A.. INFLUENCE OF POST-POLLINATION WATER DEFICIT STRESS AND NITROGEN ON YIELD, YIELD COMPONENTS AND GRAIN PROTEIN CONTENT OF BARLEY (CV. VALFAJR). JOURNAL OF AGRICULTURAL KNOWLEDGE[Internet]. 2009;18(4):143-153. Available from: https://sid.ir/paper/29061/en

IEEE: Copy

Y. NASIRI, MOHAMMAD REZA SHAKIBA, HOUSHANG AALIARI, MOSTAFA VALIZADEH, and A. DABAGH MOHAMMADINASAB, “INFLUENCE OF POST-POLLINATION WATER DEFICIT STRESS AND NITROGEN ON YIELD, YIELD COMPONENTS AND GRAIN PROTEIN CONTENT OF BARLEY (CV. VALFAJR),” JOURNAL OF AGRICULTURAL KNOWLEDGE, vol. 18, no. 4, pp. 143–153, 2009, [Online]. Available: https://sid.ir/paper/29061/en

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