| A field trial was conducted during 2009—2010 at t
he experimental station of Xinxiang Academy of Agricultural Sciences and Gaocun
Village in Huixian City, Henan Province to verify the effects of irrigation on y
ield, dry matter accumulation amount (DMAA), dry matter distribution ratio (DMDR
), water use efficiency (WUE), and quality of high gluten wheat. The trial was
implemented by using randomized block design with three replications. Five treat
ments of irrigation were included: pre-sowing water + jointing water + flowering
water (T1), pre sowing water + jointing water (T2), pre sowing water + winter
water + booting water (T3), winter water + booting water (T4), and winter water
+ pre jointing water+ flowering water + filling water (CK). The results showed
that the irrigation treatments affected significantly grain yield, DMAA, DMDR,
WUE and quality characters of Xinmai 19 at both sites. The yield of T1 was the h
ighest, which increased by 5% in average at the two sites compared with CK. The
DMAA, DMDR, WUE, irrigation WUE and precipitation WUE of T1 were wholly higher t
han those of CK. The WUE of T2 was the highest, which increased by more than 6%
compared with CK. When irrigated twice or more during the whole growth period, t
he grain quality tended to be worse with the increase of irrigation frequency. T
here was little difference of grain quality between irrigation once and no
irrigation after anthesis, both of whose grain quality was prior to that of irri
gation twice after anthesis. In comprehensive view of yield, quality and WUE, T1
was the best irrigation mode for high gluten wheat production in northern Hena
n Province. |