EFFECT OF SEED PRE-TREATMENT WITH GROWTH REGULATORS ON SEED YIELD AND YIELD COMPONENTS OF COMMON BEANS (Phaseolus vulgaris L.)

Year 2016, Volume: 21 Issue: 2, 313 - 317, 15.12.2016

Mona Mohtashamı Ahmad Naderı Ali Akbar Ghanbarı Mojtaba Alavıfazel Shahram Lak

Abstract

Seed priming is employed for better crop stand and higher yield in a range of crops. In order to evaluate the
effect of seed treatments with growth regulators on the yield and yield components of common bean
(Phaseolus vulgaris L.) lines, a factorial experiment was carried out based on a randomized complete block
design with three replications at two years. In this research, pre-treatment (priming) of two red bean (D81083
and KS31169) seeds with growth regulators including salicylic acid (SA) and naphthalene acetic acid (NAA) at
four levels (P0:control, distilled water; P1: 0.5 m mol L-1 NAA; P2: 0.7 m mol L-1 SA; P3: combination of SA
and NAA hormones at rates of 0.5 and 0.7 m mol L
-1
) were studied. The results showed that the effect of line in
all of the characteristics and seed priming with growth regulators in all of the characteristics except to harvest
index were significant. The highest number of grains per pod and biological yield (14602 kg ha-1
) due to
growth regulator application was obtained from line D81083 in 0.5 m mol L-1 NAA. Generally, the use of
growth regulators as a seed pre-treatment increased the yield and yield components of red beans.

Keywords

common bean, naphthalene acetic acid, Phaseolus vulgaris, priming, salicylic acid

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