scholarly journals Effect of Rifit, Ronstar and Machete on the growth, yield and yield attributes of BR28 paddy grown in Boro season

2013 ◽  
Vol 6 (1-2) ◽  
pp. 1-10
Author(s):  
AB Ziauddin Hossain ◽  
MA Rahman
Keyword(s):  
Grain Yield ◽  
Yield Components ◽  
Growth Yield ◽  
Yield Attributes ◽  
Normal Dose ◽  
Flag Leaves ◽  
Yield And Yield Components ◽  
Hand Weeding ◽  
Different Doses

In the present investigation BR28 paddy was grown in the Boro season. Three herbicides: Rifit 500 EC, Ronstar 25 EC and Machete 5G were applied in different doses and studied their effects on the control of weeds and ultimate growth, yield and yield components of Boro paddy. Eleven different treatments viz.: T1 (control, no herbicide was used), T2 (only hand weeding was done), T3 (Rifit normal dose), T4 (double of Rifit normal dose), T5 (half of Rifit normal dose), T6 (Ronstar normal dose), T7 (double of Ronster normal dose), T8 (half of Ronster normal dose), T9 (normal dose of Machete), T10 (double of Machete normal dose) and T11 (half of Machete normal dose) were used in the experiment. The number of tillers, length per tiller, length per panicle, area of flag leaves, number of filled grains, percentage of filled grains, straw and grain yield per hectare were found maximum at T3 where normal dose of Rifit 500 EC was applied. DOI: http://dx.doi.org/10.3329/cujbs.v6i1-2.17077 The Chittagong Univ. J. B. Sci.,Vol. 6(1&2):01-10, 2011

scholarly journals Effect of Variety and Weed Management Practices on Yield and Yield Attributes of Wheat

2013 ◽  
Vol 5 (2) ◽  
pp. 91-96
Author(s):  
MR Sultana ◽  
MA Alim ◽  
MB Hossain ◽  
S Karmaker ◽  
MS Islam
Keyword(s):  
Natural Resources ◽  
Grain Yield ◽  
Weed Management ◽  
Yield Components ◽  
Management Practices ◽  
Yield Attributes ◽  
Free Treatment ◽  
Yield And Yield Components ◽  
Hand Weeding ◽  
Plot Design

An experiment was conducted at Agronomy Field Laboratory of Rajshahi University to evaluate the effect of variety and weeding regime on yield and yield components of wheat. Four varieties viz. Prodip -V1, Gourab -V2, Shatabdi -V3, Bijoy -V4 and five weeding regime viz. a) No weeding -W0, b) Weed free -W1, c) One hand weeding at 20 DAS -W2, d) Two hand weeding (1st at 20 DAS and 2nd at 42 DAS) -W3 and e) Lintur 70 WG @ 250 g ha-1 -W4 were included as treatments in the experiment. The experiment was laid out in a Split-plot Design with three replications. The results revealed that Prodip produced the highest grain yield (5.33 t ha-1) followed by Gourab (4.85 t ha-1), while the lowest grain yield (3.98 t ha-1) was obtained from Shatabdi. The highest grain yield (5.09 t ha-1) was obtained in Weed free (W1) followed by W3 (Two hand weeding) (4.89 t ha-1) and the lowest grain yield (4.13 t ha-1) was obtained in no weeding treatment (W0). The highest grain yield (5.64 t ha-1) was obtained from the combination of Prodip and weed free treatment (V1W1) and the lowest (3.57 t ha-1) was obtained from the combination between Shatabdi and no weeding treatment (V4W0).DOI: http://dx.doi.org/10.3329/jesnr.v5i2.14800 J. Environ. Sci. & Natural Resources, 5(2): 91-96 2012

scholarly journals Effect Of Herbicides On The Growth, Yield Components And Yield Of BR11 Paddy

2013 ◽  
Vol 39 (1) ◽  
pp. 21-26
Author(s):  
AB Ziauddin Hossain ◽  
Md. Azizur Rahman
Keyword(s):  
Paddy Field ◽  
Yield Components ◽  
Growth Yield ◽  
Weed Species ◽  
Straw Yield ◽  
Normal Dose ◽  
Flag Leaves ◽  
Different Doses

Eleven treatments with three herbicides were applied on BR11 paddy field to control weeds and also to study the growth, yield components and yield. The effect of herbicides was found to be positive in controlling the weed species and in increasing the yield components and yield. The maximum number and length of tillers, length of panicle, area of flag leaves, number and percentage of filled grains, grain and straw yield per hectare were found at T3 when normal dose of Rifit 500 EC was applied. Different doses of Machete 5G were also found effective in controlling weeds and increasing in yield. J. Asiat. Soc. Bangladesh, Sci. 39(1): 21-26, June 2013 DOI: http://dx.doi.org/10.3329/jasbs.v39i1.16029

The influence of drought stress on growth, yield and yield components of selected maize genotypes

2003 ◽  
Vol 141 (1) ◽  
pp. 43-50 ◽  
Author(s):  
A. Y. KAMARA ◽  
A. MENKIR ◽  
B. BADU-APRAKU ◽  
O. IBIKUNLE
Keyword(s):  
Grain Yield ◽  
Water Deficit ◽  
Yield Components ◽  
Central Africa ◽  
Growth Yield ◽  
Drought Tolerant ◽  
Maize Genotypes ◽  
Yield And Yield Components ◽  
West And Central Africa ◽  
Savannah Zone

The risk of drought is high in the Sudan savannah zone of West and Central Africa because rainfall in this area is unpredictable in quantity and distribution. Thus, improved maize genotypes tolerant to drought could stabilize maize grain yield in this zone, where recurrent drought threatens grain production. Six maize genotypes, two each of hybrids, open-pollinated varieties (OPVs) and landraces, were evaluated for tolerance to terminal water deficit before flowering. Water deficit significantly reduced growth, grain yield and yield components of the maize genotypes. Significant differences were observed among genotypes for all the traits measured. One hybrid, 9011-30, and two improved OPVs, STR-EV-IWD and IYFD-C0, that showed tolerance to water stress recorded higher grain yield, and accumulated and partitioned more assimilates to the grain than the drought-susceptible genotypes. Also the drought-tolerant genotypes, 9011-30, STR-EV-IWD and IYFD-C0 had more ears/plant and greater numbers of kernels/ear. These genotypes could serve as sources of drought tolerance for the development and improvement of new drought-tolerant maize genotypes.

scholarly journals Phosphorus and tillage management for maize under irrigated and dryland conditions

2016 ◽  
Vol 5 (03) ◽  
pp. 1304 ◽  
Author(s):  
Dr. Amanullah* ◽  
Arsalan Zahid ◽  
Asif Iqbal ◽  
Mr. Ikramullah
Keyword(s):  
Grain Yield ◽  
Yield Components ◽  
Management Practices ◽  
Block Design ◽  
Growth Yield ◽  
Moisture Stress ◽  
Limiting Factors ◽  
Water Stress Condition ◽  
Yield And Yield Components ◽  
Tillage Depth

Deficiencies of phosphorous (P) and soil moisture are the main limiting factors under semiarid climates throughout the world. Proper tillage management could increase P and water availability and therefore crop productivity under semiaraid climates. The objective of this study was to investigate proper P and tillage management practices for improving growth, yield and yield components of maize (Zea mays L. cv Azam). The experiment was conducted under, irrigated (no moisture stress) and dryland (moisture stress) conditions at the Agronomy Research Farm of The University of Agriculture, Peshawar Pakistan during summer 2012. Experiment was laid out in randomized complete block design with split-plot arrangement having three replications under both irrigated and dryland conditions. Tillage depths (15, 30 and 45 cm) were assigned to main-plots while P levels (0, 30, 60 and 90 kg ha-1) allotted to sub-plots. Better growth and higher yield components and grain yield (3535 kg ha-1) was obtained when P was applied at the highest rate of 90 kg P ha-1 (90 > 60 > 30 > 0 kg P ha-1). Increase in tillage depths showed positive relationship with grain yield and yield components. The deep tillage depth (45 cm) produced the highest grain yield (3323 kg ha-1) while the shallow depth (15 cm) resulted in the lowest grain yield (2894 kg ha-1). Maize planted under irrigated condition had better growth, higher yield components and therefore resulted in the higher grain yield (3621 kg ha-1) as compared with maize under dryland (water stress) condition. We concluded from this study that increase in P level and tillage depth had positive effect on growth, yield components and grain yield of maize under both irrigated and dryland conditions. 

scholarly journals Effects of Sowing Dates on Yield and Yield Components of Different Varieties of Wheat (Triticum aestivum L.) in Western Uttar Pradesh

2021 ◽  
Vol 8 (4) ◽  
pp. 188-192
Author(s):  
Y. P. Singh ◽  
◽  
Satybhan Singh ◽  
V. K. Dhangrah ◽  
Tripuresh Mishra ◽  
...  
Keyword(s):  
Grain Yield ◽  
Plant Height ◽  
Yield Components ◽  
Agricultural Research ◽  
Test Weight ◽  
Yield Attributes ◽  
Straw Yield ◽  
Days To Flowering ◽  
Yield And Yield Components ◽  
Days To Maturity

An experiment was conducted during Rabi season (November-December) of 2018–19 to study the effect of three dates of sowing (26th November, 11th December and 25th December) on growth, yield attributes and yield of fivewheat varieties (HD-2967, HD-3086, WH-1105, PBW-343 and PBW-226) at Agricultural Research Farm of IFTM University, Moradabad (UP) India. The experiment was laid out in Factorial Randomized Design with two replications. Sowing was done at spacing of 22.5 cm in sandy loam soil. The observations were recorded on growth, flowering, maturity, yield and yield components. Analysis of variance showed the significant variations were observed for the characters viz. plant height, days to flowering, spikes per plant, days to maturity, grain yield, test weight, straw yield, biological yield and harvest index due to changing dates of sowing. However, varietal variations were recorded for plant height, days to flowering, spikes per plant, days to maturity and test weight. Wheat sown on 26th November recorded significant increase in plant height, tillers plant-1, spikes-1 plant, grain yield and straw yield over late sowing on 11th December and 25th December. There was no significant variation among varieties for yield and yield contributing traits such as grains spike-1, grain and straw yield. Significant interaction effects between dates of sowing and varieties were found for days to flowering which showed that the variety HD-2967 is as best wheat variety for early sown and PBW-226 for late sown conditions in order to obtain better returns.

scholarly journals Residual effect of nitrogen levels and weed control methods on growth, yield and economics of wheat grown after rice

2019 ◽  
Vol 11 (2) ◽  
pp. 327-332
Author(s):  
Vipin Kumar Shukla ◽  
H. S. Kushwaha ◽  
S. K. Singh ◽  
D. K. Malviya ◽  
R. K. Tiwari
Keyword(s):  
Grain Yield ◽  
Weed Control ◽  
Growth Yield ◽  
Residual Effect ◽  
Control Methods ◽  
Yield Attributes ◽  
Nitrogen Levels ◽  
Main Plot ◽  
Hand Weeding ◽  
Plot Design

A field experiment was laid out in split plot design on residual effect of treatments comprising three nitrogen levels viz. N75 (N1), N100 (N2) and N125 (N3) in main-plot treatments and seven weed control treatments viz. (W1-butachlor + 1 Hand Weeding, W2-butachlor + 2 Mechanical Weeding, W3-butachlor + 2,4-D, W4-bispyribac sodium, W5-butachlor + bispyribac sodium, W6-HW-2, W7- control) as sub-plot treatments conducted during 2015-16 and 2016-17 at the Rajaula Agriculture Farm, MGCGVV, Satna (M.P.) to study the residual effect of N-levels and weed control methods on growth, yield and economics of wheat grown after rice. In case of succeeding wheat, the residual 125 kg N/ha performed the best with respect to growth, yield-attributes with the result 31.11 q/ha grain yield and Rs.33509/ha income. While, under sub plot treatments, Hand weedings two times were recorded significant grain yield (28.66 q/ha) and straw yield (38.17 q/ha) at (P <0.05) over control. However it was found non-significant different and also noticed higher over rest treatments. In this succession, Butachlor + 2, 4-D (0.80 kg/ha) was higher but in second position and similar trend was observed in successive way with rest of treatments.

scholarly journals Impact of fertilization with reducing in nitrogen and phosphorous application on growth, yield and biomass accumulation of rice (Oryza sativa L.) under a dual cropping system

PeerJ ◽  
2021 ◽  
Vol 9 ◽  
pp. e11668
Author(s):  
Ke Wu ◽  
Izhar Ali ◽  
Huimin Xie ◽  
Saif Ullah ◽  
Anas Iqbal ◽  
...  
Keyword(s):  
Grain Yield ◽  
Yield Components ◽  
Southern China ◽  
Oryza Sativa L ◽  
Growth Yield ◽  
Rice Grain ◽  
Area Index ◽  
Fertilizer Application Rate ◽  
Panicle Number ◽  
Yield And Yield Components

The current farming system in China is heavily reliant on synthetic fertilizers, which adversely affect soil quality and crop production. Therefore, the aim of this study was to assess the effect of different nitrogen (N) and phosphorous (P) fertilizer application rate on the growth, yield, and yield components of rice cultivars in the Binyang, Beiliu and Liucheng sites of southern China in the early (March to July) and late season (August to December). The study consisted of three fertilization regimes—CK (N0P0); N180P90 (180 kg N + 90 kg P2O5 ha−1) and N90P45 (90 kg N ha−1 + 45 kg P2O5)—conducted at each of three different experimental sites with four cultivars (Baixang 139, Y Liangyou 1, Guiyu 9, and Teyou 582). Results showed that the leaf area index (LAI) was 38.8% found higher in Guiyu 9 compared with Baxiang at reduced fertilization (N90P45). N90P45 resulted higher dry matter production at the heading (9411.2 kg ha−1) and maturity (15319.5 kg ha−1) stages in Teyou 582 at Beiliu. Fertilization (N180P90) had higher effective panicle number (4,158,800 panicle ha−1) and grains panicle−1 (113.84 grains) compared with other treatments. Teyou 582 treated with N90P45 and Y Liangyou 1 treated with N180P90 improved seed setting rate average by 82.91% and 72.17% compared with other treatments at Beiliu in both seasons, respectively. N0P0 and N90P45 increased the thousand-grain weight (TGW) of Y Liangyou 1 at Binyang (27.07 g) and Liucheng (27.84 g) during the early and late seasons, respectively. In Beiliu, the N90P45 treatment (6611.7 kg ha−1) of Teyou 582 increased grain yield compared with other treatments. Overall, our results suggested that reducing N and P at the ratio of 90:45 kg ha−1 in Teyou 582 and Y Liangyou 1 could increase rice grain yield and yield components.

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