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Third Stress Adaptive Traits of Wheat Yield Nursery (3nd Satyn)

N. C. D. Barma
Wheat Research Centre, BARI

M.F. Amin
Wheat Research Centre, BARI

M. M. Hasan
Wheat Research Centre, BARI

M. A. Hakim
Wheat Research Centre, BARI

, M. Farhad
Wheat Research Centre, BARI

N. A. Siddiquie
Wheat Research Centre, BARI

M. A. Zaman
Wheat Research Centre, BARI

M. Mahbubur Rahman
Wheat Research Centre, BARI

Abstract/ Executive Summary:

The nursery was consisted of 24 elite genotypes of wheat. The nursery was grown at Joydebpur, Rajshahi and Dinajpur under optimum sowing and reduced irrigation. Considering grain yield, overall field performance on the basis of Normalized Difference Vegetation Index (NDVI) and visual grain quality ten genotypes viz. Entry 2, 3, 6, 10 14, 9, 11, 13, 14, 17, 19, 20, 21, and 23 were selected for further evaluation

Keywords: Adaptive traits, Drought stress, Promising genotypes, Water stress, Wheat .

Location: Joydebpur, Rajshahi and Dinajpur

Start Date: 00-00-2013

End Date: 00-00-2014

Program Area: Variety and Species

Commodity: Wheat

Objectives:

To find out under optimum and drought stress condition and to select promising genotypes of wheat

Methodology:

The nursery consist of 24 genotypes were tested at WRC, Dinajpur; RWRC, Joydebpur and RWRC, Rajshahi. The wheat genotypes were sown on 26 November in Dinajpur, 24 November in Joydebpur and 18 November in Rajshahi. The experiment was laid out in Alpha-lattice design with two replications. The unit plot size was 2.5m long with 6 rows spaced at 20 cm. Fertilizers were applied @ N₁₀₀ P₂₆ K₅₀ S₂₀ B₁ kg ha^-1. All the fertilizers and two-third of urea were applied during final land preparation and one-third of urea was top dressed after first irrigation. All agronomic practices have been done proper time for better yield performance. Data were recorded on different agronomic and physiological parameters like canopy, temperature (Pre-heading and post heading), Chlorophyll content (SPAD) at anthesis, etc. In addition, Normalized Difference Vegetation Index (NDVI) was measured at heading and anthesis time using a hand held Greenseeker NDVI meter. The middle four rows were harvested to get yield data.

Source of Information: Annual Research Report, Wheat Research Centre, BARI--2013-14

Article Link (Online Journal):

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

The results showed significant variation for all the traits: days to heading 961-89 d), days to maturity (104-119 d), plant height (83-102 cm), grains/spike (51-68), 1000-grain weight (32.85-48.35g), biomass (6.20-9.93 t/ha) and grain yield (3.06-4.78 t/ha). However, there was no significant variation was observed for the other traits like harvest index, NDVI (at heading and anthesis), CT (Pre and Post heading) and Chlorophyll content at anthesis. Most of the selected genotypes were early in maturity and relatively shorter in height (78-98 cm). Grain yield of the selected genotypes ranges from 3.33 to 4.72 t/ha. Among the selected genotypes Entry-2 yielded the highest (4.72 t/ha) followed by E-3 (4.67 t/ha) and E-6 (4.66 t/ha). Agronomic scores for the selected entries were also satisfactory. The selected genotypes showed good level of tolerance to BpLB and resistance to leaf rust disease. Considering overall field performance, yield, disease incidence and visual grain quality ten lines (Entries 2, 3, 6, 10 14, 9, 11, 13, 14, 17, 19, 20, 21, and 23) were selected for further evaluation. NDVI values ranged from 0.67 to 0.74 at heading and significantly correlated with biomass and grain yield.

Knowledge Management: Report/Proceedings