Narromine

Grower: Andrew Gill


Variety Yield
(bales/ha)
Yield
(bales/ac)
% of Sicot 812RRF Staple
(decimal)
Staple
(imperial)
Manual Class Micronaire Strength
(gms/tex)
Turnout
(%)
Uniformity
(%)
Sicot 711RRF 1.88 0.76 123.2 1.09 35 31-3 5.1 32.6 43.2 83.3
Sicot 746B3F 1.56 0.63 102.3 1.13 36 31-3 4.7 32.4 43.6 81.3
Sicot 748B3F 1.53 0.62 100.8 1.15 37 31-3 4.9 33.0 41.1 81.2
Sicot 812RRF 1.52 0.62 100.0 1.16 37 31-3 4.9 31.5 40.5 81.8
Sicot 75RRF 1.50 0.61 98.6 1.09 35 31-3 5.1 32.6 42.4 81.3
Sicot 714B3F 1.42 0.57 93.2 1.12 36 31-3 5.0 32.6 42.8 80.7
Year2017 Trial TypeN/A Trial Design2 RCB Balance of FieldSicot 812RRF
Planted13/11/16 Picked08/05/17 Previous CropLong Fallow Wheat Established MethodFallow Moisture
Plant Stand/m8.7 Rainfall (defoliation mm)179 Incrop irrigationsN/A Soil applied insecticideNo
Nitrogen (kg/ha N)N/A Phosphorus (kg/ha P)N/A Potassium (kg/ha K)N/A Zinc (kg/ha Z)N/A
Heliothis sprays5 Insect sprays5 Pix applied (L/ha)0.5 Days to defoliation149

This trial was setup as a conventional super single dryland trial with B3F variety inserts. The trialwas planted on the 13/11/2016 into heavy stubble. The single disk opener planter worked well and established 8-9 plants/m. The plants grew well in the protection of the stubble which reduced the attractiveness of this crop to insects and hence mean’t less sprays overall. Although the conventional had a bigger canopy the Bollgard 3 varieties still performed good with very few qulality discounts. The highest yielding variety was the Sicot 711RRF but fell out on length and micronaire. The trial showed the value of stubble in the dryland system but needed rainfall in late Januray.

A very tough Season. Extreme heat and very little rain from Christmas to defoliation
The crop got away extremely well after a wet winter and early spring.
The conventional varieties seemed to be able to handle the heat better. There wasnメt as much cavitation in bolls early on in the season. The conventional varieties also had great structure.
The rain in March may have only helped yield slightly but would have definitely improved quality and may have helped with defoliation due to the dry soil profile.
Growing conventional dryland on Super single spacing in the macquarie is well worth investigating. Areas outside the trial yielded well above the highest yielding varieties in the trial. Whilst there were no discounts over the whole paddock, the conventional varieties quality didnt hold up aswell as the B3F, leaving me to wonder if there needs to be more work done in the conventional breeding pipeline.