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Research Detail

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A. J. Mila
Scientific Officer
IWM Division, BARI

A. R. Akanda
Chief Scientific Officer
IWM Division, BARI

M.H. Rashid
Senior Scientific Officer
ORC

M.A. Rahman
Scientific Officer
ARS, Banerpota, Shatkhira

This experiment was conducted at the research field of Irrigation and Water Management Division, BARI, Gazipur, and ARS, Banapota, Shatkhira during the rabi season of 2013-2014 with sunflower variety BARI Surjomukhi-2. There were nine irrigation treatments, each replicated thrice in a randomized complete block design (RCBD) with additional spare plot. Furrow irrigation method was used. FI up to 100% FC, DI up to 80% and 60% FC at vegetative and pre-flowering stage were produced highest yield for both locations. Water productivity was highest at DI up to 60% FC at vegetative and pre-flowering stage. Flowering stage was the critical stage for sunflower cultivation. Similarly, water productivity was found better in treatments FI up to 100% FC, DI up to 80% and 60% FC at vegetative and pre-flowering stage than others treatments. The soil salinity at vegetative and flowering stage was found highest in treatments FI up to 100% FC, DI up to 80% and 60% FC at vegetative and heading stage than other treatments at Satkhira. The highest canopy coverage of about 78% was found in treatment FI up to 80% FC at vegetative and heading, and DI up to 60% FC at Vegetative, pre-flowering and heading stage and the lowest was found in treatment DI up to 60% FC at Vegetative and pre-flowering stage at Gazipur. Financial profitability of BARI Surjomukhi-2 was found better at Satkhira than Gazipur.

  Water requirement, Sunflower, Irrigation
  BARI, Gazipur, and ARS, Banapota, Shatkhira
  00-00-2013
  00-00-2014
  Crop-Soil-Water Management
  Sunflower

To find out the effect of deficit of water requirement in growth and yield of sunflower

The experiment was conducted at the research field of Irrigation and Water Management Division, BARI, Gazipur, and ARS, Benerpota, Shatkhira during the rabi season of 2013-2014 with BARI Surjomukhi-2. It was a warm dry climate with the maximum, minimum and average temperatures of 26.94, 14.46 and 20.70°C, for Gazipur and 27.80, 16.04 and 21.92°C for Satkhira, respectively. The average relative humidity, sunshine hour and evaporation were 74.12 %, 5.42, and 2.96 mm for Gazipur and 69.38 %, 6.58, and 3.60 mm for Satkhira, respectively. The effective rainfall was about 41 and 32.2 mm for Gazipur and Satkhira respectively. The soil characteristics of experimental field was sandy clay loam in texture and pH = 6.03.  Each treatment was replicated thrice with one additional spare plot. The experimental design was randomized complete block (RCB) with nine treatments i.e.

T1 = FI up to 100% FC at vegetative, pre-flowering, and heading stage

T2 = DI up to 80% FC at vegetative, pre-flowering, and heading stage

T3 = DI up to 60% FC at vegetative, pre-flowering, and heading stage

T4 = FI up to 100% FC at vegetative and pre-flowering stage

T5 = DI up to 80% FC at vegetative + pre-flowering stage

T6 = DI up to 60% FC at vegetative + pre-flowering stage

T7 = FI up to 100% FC at vegetative + heading stage

T8 = DI up to 80% FC at vegetative + heading stage and

T9 = DI up to 60% FC at vegetative + heading stage.

Where, FI  indicates Full Irrigation and  DI indicates Deficit Irrigation.

Land preparation was done by using tractor, power tiller, power leader etc. Before sowing seeds were soaked under water for easy germination. Fertilizers were applied at the rate of N90, P34, K80, Zn2, S30, B2.0 kg/ha and cow dung 5.0 t/ha for Gazipur and N108, P37, K30, Zn1.5, S11, Mg1.5, B2.0kg/ha and cow dung 5.0 t/ha for Satkhira. One third of N and total amount of other fertilizers were applied at the time of final land preparation and the rest two third was applied in two splits, one third will be applied after 20 – 25 DAS and the rest one third will be applied before flowering i.e., after 40 –45 DAS. Seeds were planted in line on 25 Nov and 15 Dec, 2013 at the rate of 8-10 kg/ha. The unit plot size and spacing were 4 m × 2 m and 50 cm × 25 cm, respectively. A processing irrigation of 15.57 mm water was applied in the field for ensuring good emergence. Intercultural operations, such as weeding, and pesticide application were done as when necessary. The soil water content was monitored in each plot by using the gravimetric method at 30 cm intervals down to 60 cm. Then, irrigation water amount of each plot was converted to time (min) and applied. The amount of applied water was measured by time-volume technique. Irrigation water was applied by furrow method to bring the soil moisture up to field capacity (29.5%) considering the effective root zone depths (50 cm). Soil moisture at every 10 days intervals was measured by using the crop period. At 60 DAP, some growth data, such as, plant population, plant height, root depth, canopy coverage, biomass etc were recorded. The crop was harvested on 18-19 March, and 20-27 March, 2014 in Gazipur and Satkhira, respectively. Ten plants were randomly selected from each plot for recording yield and yield contributing data during and after harvest. Then, those data were analyzed statistically. Seed oil content of nine treatments was determined according to A.O.A.C. (1990) using soxhlet apparatus and diethyl ether as a solvent.

  Annual Research Report, IWM Division, BARI 2013-14
  
Funding Source:
1.   Budget:  
  

DI effects on yield, yield components and oil content of sunflower cultivation at Gazipur and Satkhira, during 2013-2014. The oil content was analyzes in the central laboratory of BARI All the components were analyzed statistically and significant variation was found in yield at Gazipur and seed weight/head and yield at Satkhira. The highest yield of 2.89 t/ha was found in treatment T1 which was followed by T7, and T4 and the lowest yield of 2.41 t/ha was found in treatment T3 at Gazipur. In contrast, at Satkhira, highest yield of 3.50 t/ha was found in treatment T2 which was followed by T5, and T4 and the lowest yield of 2.16 t/ha was found in treatment T8.

The highest BCR of 1.27, 1.26 and 1.25 were found in treatment T7, T4 and T1 respectively followed by 1.17 in treatments T5 and T6 and the lowest BCR of 1.04 were found in treatment T3 at Gazipur. On the other hand, coastal region of Satkhira highest BCR of 2.45 and 2.41 were found in treatments T5 and T4 and lowest was 1.54 in treatment T8. It was reveals that the financial profitability of BARI Surjomukhi-2 was found better at Satkhira than Gazipur

Sunflower (BARI shurjomukhi-2) performed better with full irrigation given at vegetative preflowering and heading stages in respect of seed yield in Joydebpur but it performed better with DI up to 80% of FC given at vegetative, preflowering and heading stages at ARS, Benerpota, Shatkhira. In Shatkhira, the highest soil salinity was recorded at vegetative and flowering stages. Financial profitability of BARI Shurjomukhi-2 was found better in Shatkhira than  Gazipur.

  Report/Proceedings
  


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