A study was carried out in the 2nd agro-ecological zone at the General Commission
for Scientific Agricultural Research/Sirbaya Research Station/Aleppo during the growing
season 2011-2012. The study aimed at evaluating the response of different vari
eties of
lentil to supplemental irrigation. The experiment adopted a split plot design with three
replicates. Two water treatments, supplemental irrigation (R) and rain feed (Ro) were
applied to three varieties of lentil: IDLEB1 (D1), IDLEB1 (D2), and IDLEB1 (D3). The
results showed that R was more significant than Ro at a confidence level 5% for grain, hay
yield, and 100-grain weight. The differences were significant between the varieties that
applied Ro; the most significant of which was D3 for grain and hay yield, and D2 for 100-
grain weight. As for R, the differences were significant for grain yield (the most significant
was D3) and 100-grain weight (the most significant was D2), while there was no
significant difference for hay yield. There was no interaction between water treatment and
the variety in terms of grain yield and 100-grain weight, while it was observed for hay
yield.
This research was conducted to determine the most responsive phenological
stage for supplementary irrigation of the durum wheat in a primary stationary
region.
It consisted of six different water treatments in addition to control (non
irrigated)
:
1-From planting to seedling emergence; 2-From planting to tillering; 3-From
planting to booting; 4-From planting to flowering; 5-From planting to the end of
the milk stage; 6–Sowing irrigation and irrigation according to necessity
throughout the milk stage.
The study has been repeated in four blocks for three seasons from 2002 to
2005. The results of the first two seasons showed that the:
The treatment from planting to booting, was canceled because of the rain and
soil dampness during this growth period. A significant increase in production,
water use efficiency, and one 1000 kernel weight, of both 5th and 6th treatments was
noticed in comparison with other treatments and the control. Results of the three
seasons were varied due to the environmental variation in temperature and amount
of rainfall.
