scholarly journals Physiological Traits and Productivity of Wheat (Triticumaestivum L.) in Relation to Foliar Spray of Zinc, Urea, and Thiourea under Rainfed Condition

Author(s):  
CB Verma

Combined foliar application of ZnSO4 (0.5%) +urea (2%) + thiourea (500 ppm) twice at 45 and 65 days after sowing (DAS) under rainfed condition on widely evaluated two wheat varieties resulted in significantly higher plant height (cm), leaf area (cm2 ), number of tillers, dry matter accumulation, chlorophyll content In leaf, yield and its component over water sprayed control as well as treatments. Among wheat varieties, K-9351 was found more responsive as it yielded (38.5 q/ha) then K-8027 (33.1 q/ha).

2021 ◽  
Vol 17 (AAEBSSD) ◽  
pp. 68-73
Author(s):  
J. P. Bholane ◽  
Kavita D. Rajput ◽  
G. S. Tomar

A field experiment was conducted for boosting the productivity of kharif sweet corn (Zea mays Saccharata) at Agronomy Farm,RCSM College of Agriculture, Kolhapur (M.S.), India during kharif, 2020 in black Vertisolsoil using split plot design with four replications and two factors, where main plot factors consist of time of application viz T1:15 days after sowing (DAS), T2: 30 DAS and T3: 45 DAS and sub plot factors consist of levels of nano nitrogen (N) fertilizers vizN1: 1.00 L ha-1, N2: 1.25 L ha-1 and N3:1.50 L ha-1. The results showed that at harvest, maximum plant height (183.41 cm), number of leaves (8.86 plant-1), leaf area (58.40 dm2plant-1), dry matter accumulation (117.18 gplant-1), length of cob (18.55 cm), diameter of cob (16.83 cm), weight of cob per plant (208.65 g), number of grains (371.25 cob-1), green cob yield (125.96 q ha-1), green fodder yield (344.39 q ha-1), total uptake plant in total ((264, 98 and 230 kg ha-1),yield of protein by grain (92.89 g kg-1) and stover (50.96 g kg-1) were obtained from treatment N3 (1.5 L ha-1) which was on par with treatment N2 (1.25 L ha-1) and significantly superior over N1 (1 L ha-1). While main plot showed that at harvest plant height (191.90 cm), number of leaves(10.09plant-1), leaf area (62.63 dm2plant-1), dry matter accumulation (123.51 gplant-1), length of cob (20.56 cm), diameter of cob (19.71 cm), weight of cob (222.29 g plant-1), number of grains (402.07 cob-1), green cob yield (138.32q ha-1),stover yield (359.75q ha-1), total uptake(287, 113 and 262 kg ha-1), yield of protein by grain (97.36 g kg-1) and stover (51.77 g kg-1)were significantly maximum when foliar spray of NN was done at 15 (DAS). The foliar application at 15 DAS had taken minimum number of days to reach 50 per cent of tasselling (51.62 days) and silking (55.97 days).


2011 ◽  
Vol 59 (1) ◽  
pp. 35-45
Author(s):  
E. Sugár ◽  
Z. Berzsenyi

The effect of nitrogen (N) fertilisation on the growth of winter wheat varieties was examined in three diverse years using the functional method of growth analysis. The main plot in the two-factorial, split-plot experiment was the N treatment and the subplot the variety. The wheat varieties Mv Toborzó (extra-early), Mv Palotás (early) and Mv Verbunkos (mid-early) were treated with N rates of 0, 80, 160 and 240 kg N ha−1 (N0, N80, N160, N240). The Hunt-Parsons (HP) program fitted a third-degree exponential function to the dry matter and leaf area data. In 2007 and 2008 dry matter accumulation continued up to the N240 rate and in 2009 to the N160 rate. In all three years the highest value was recorded for Mv Verbunkos (4.62 g plant−1 in 2007, 4.63 g in 2008 and 4.51 g in 2009). The highest value of maximum leaf area (237.5 cm2) was found for Mv Verbunkos in the N240 treatment. The maximum values of leaf area in each N treatment, averaged over years and varieties (cm2 plant−1), were as follows: N0: 86.2; N80: 141.0; N160: 164.0; N240: 173.1. The parameter AGRmean exhibited the highest value (8.04 g day−1 102) in the N160 treatment, while among the varieties Mv Verbunkos had the highest mean value (7.18 g day−1 102). The highest value of RGRmean was achieved by Mv Toborzó in the N160 treatment in 2009 (3.94 g g−1 day−1 102). The value of NARmean increased up to fertiliser rates of N160 and N240, with mean values (g m−1 day−1) of N0: 2.35, N80: 2.44, N160: 2.53 and N240: 2.47. The highest value of NAR (3.29 g m−1 day−1) was obtained for Mv Palotás in the N160 treatment in 2008. On average the greatest value of LARmax was recorded in the N160 treatment (172.8 cm2 g−1), while the highest absolute value (213.6 cm2 g−1) was achieved by Mv Toborzó in 2008. The unfavourable effect of the drought in 2007 was clearly reflected in the values of the growth parameters.


2003 ◽  
Vol 60 (3) ◽  
pp. 537-541 ◽  
Author(s):  
Vagner Maximino Leite ◽  
Ciro Antonio Rosolem ◽  
João Domingos Rodrigues

Soybean is an important crop in Brazil. Nonetheless, there are no reports on the use of plant growth regulator potential in relation to this crop in the national literature. To better understand the role of these compounds, a pot experiment was carried out to study effects of GA3 and cytokinin on the vegetative growth of the soybean. GA3 (50 mg L-1) was applied as seed treatment, leaving plants with water application as control. GA3 (100 mg L-1) and cytokinin (30 mg L-1) were sprayed on leaves at the physiological stage V3/V4, and 15 days after, cytokinin (30 mg L-1), also as foliar spray. Seed treatment decreased plant emergence and initial soybean root growth, but as the season progressed, differences in root growth disappeared; plants were shorter, and presented a decrease in the number of nodes, in stem diameter, in leaf area and in dry matter yield. Conversely, foliar application of GA3 led to an increase in plant height, first node height and stem diameter. Leaf area and dry matter production also increased as a result of GA3 foliar application. There was no effect of exogenous gibberellin and cytokinin on the number of soybean leaves, number of stem branches and root dry matter. Joint application of gibberellin and cytokinin tended to inhibit gibberellin effects. Cytokinin applied to leaves during soybean vegetative growth was not effective in modifying any of the evaluated plant growth variables.


2014 ◽  
Vol 6 (2) ◽  
pp. 377-382 ◽  
Author(s):  
Arvind Kumar Yadav ◽  
Anil Kumar ◽  
Jagdev Singh ◽  
R.D. Jat ◽  
H.S. Jat ◽  
...  

A field experiment was carried out at Research Farm of Chaudhary Charan Singh Haryana Agricultural University, Hisar, India to evaluate the performance of pearl millet genotypes (HHB 67 ‘Improved’, HHB 197, HHB 223 and HHB 234) under different environment (rainfed and irrigated). Results showed that irrigated condition recorded significantly (p < 0.05) higher plant height, dry matter accumulation, root dry weight, ear head girth, test weight and yield of pearl millet than rainfed condition. Root length was significantly (p < 0.05) higher under rainfedthan irrigated condition. Genotypes were found significant (p < 0.05) with respect to plant height at harvest and HHB 234 recorded higher plant height. Genotype HHB 223 recorded higher earhead girth (2.6 cm) and test weight (11.16 g) compared to other genotypes. Interaction effect was also found significant (p < 0.05) with respect to plant height, dry matter accumulation, root length and weight and yield. These were higher in genotype HHB 223 and HHB 234 under irrigated and rainfed condition respectively but at 20 days after sowing, longest root was observed in genotype HHB 67 ‘Improved’ under rainfed condition and genotype HHB 197 under irrigated condition. To examine the performance of pearl millet genotypes in terms of survivality and yield potential, evaluation trials are necessary under different environment. Therefore, release of those varieties under different situations are essential for the sustainability of the fragile arid and semi arid regions of country.


2021 ◽  
Vol 17 (AAEBSSD) ◽  
pp. 61-67
Author(s):  
I. Sarwar ◽  
V.B. Gedam ◽  
R.H. Shinde ◽  
A. S. Bade ◽  
V. R. Bavadekar ◽  
...  

A field experiment was conducted for boosting the productivity of kharif sweet corn (Zea mays Saccharata) at Agronomy Farm,RCSM College of Agriculture, Kolhapur (M.S.), India during kharif, 2020 in black Vertisolsoil using split plot design with four replications and two factors, where main plot factors consist of time of application viz T1:15 days after sowing (DAS), T2: 30 DAS and T3: 45 DAS and sub plot factors consist of levels of nano nitrogen (N) fertilizers vizN1: 1.00 L ha-1, N2: 1.25 L ha-1 and N3:1.50 L ha-1. The results showed that at harvest, maximum plant height (183.41 cm), number of leaves (8.86 plant-1), leaf area (58.40 dm2plant-1), dry matter accumulation (117.18 gplant-1), length of cob (18.55 cm), diameter of cob (16.83 cm), weight of cob per plant (208.65 g), number of grains (371.25 cob-1), green cob yield (125.96 q ha-1), green fodder yield (344.39 q ha-1), total uptake plant in total ((264, 98 and 230 kg ha-1),yield of protein by grain (92.89 g kg-1) and stover (50.96 g kg-1) were obtained from treatment N3 (1.5 L ha-1) which was on par with treatment N2 (1.25 L ha-1) and significantly superior over N1 (1 L ha-1). While main plot showed that at harvest plant height (191.90 cm), number of leaves(10.09plant-1), leaf area (62.63 dm2plant-1), dry matter accumulation (123.51 gplant-1), length of cob (20.56 cm), diameter of cob (19.71 cm), weight of cob (222.29 g plant-1), number of grains (402.07 cob-1), green cob yield (138.32q ha-1),stover yield (359.75q ha-1), total uptake(287, 113 and 262 kg ha-1), yield of protein by grain (97.36 g kg-1) and stover (51.77 g kg-1)were significantly maximum when foliar spray of NN was done at 15 (DAS). The foliar application at 15 DAS had taken minimum number of days to reach 50 per cent of tasselling (51.62 days) and silking (55.97 days).


2014 ◽  
Vol 40 (1) ◽  
pp. 134 ◽  
Author(s):  
Yong-Lu TANG ◽  
Chao-Su LI ◽  
Chun WU ◽  
Xiao-Li WU ◽  
Gang HUANG ◽  
...  

Author(s):  
Muhammad Zeeshan Mehmood ◽  
Ghulam Qadir ◽  
Obaid Afzal ◽  
Atta Mohi Ud Din ◽  
Muhammad Ali Raza ◽  
...  

AbstractSeveral biotic and abiotic stresses significantly decrease the biomass accumulation and seed yield of sesame crops under rainfed areas. However, plant growth regulators (such as Paclobutrazol) can improve the total dry matter and seed production of the sesame crop. The effects of the paclobutrazol application on dry matter accumulation and seed yield had not been studied before in sesame under rainfed conditions. Therefore, a two-year field study during 2018 and 2019 was conducted with key objectives to assess the impacts of paclobutrazol on leaf greenness, leaf area, total dry matter production and partitioning, seed shattering, and seed yield of sesame. Two sesame cultivars (TS-5 and TS-3) were treated with four paclobutrazol concentrations (P0 = Control, P1 = 100 mg L−1, P2 = 200 mg L−1, P3 = 300 mg L−1). The experiment was executed in RCBD-factorial design with three replications. Compared with P0, treatment P3 improved the leaf greenness of sesame by 17%, 38%, and 60% at 45, 85, and 125 days after sowing, respectively. However, P3 treatment decreased the leaf area of sesame by 14% and 20% at 45 and 85 days after sowing than P0, respectively. Compared with P0, treatment P3 increased the leaf area by 46% at 125 days after sowing. On average, treatment P3 also improved the total biomass production by 21% and partitioning in roots, stems, leaves, capsules, and seeds by 23%, 19%, 23%, 22%, and 40%, respectively, in the whole growing seasons as compared to P0. Moreover, under P3 treatment, sesame attained the highest seed yield and lowest seed shattering by 27% and 30%, respectively, compared to P0. This study indicated that by applying the paclobutrazol concentration at the rate of 300 mg L−1 in sesame, the leaf greenness, leaf areas, biomass accumulation, partitioning, seed yield, and shatter resistance could be improved. Thus, the optimum paclobutrazol level could enhance the dry matter accumulation and seed production capacity of sesame by decreasing shattering losses under rainfed conditions.


Author(s):  
Y. Rajasekhara Reddy ◽  
G. Ramanandam ◽  
P. Subbaramamma ◽  
A. V. D. Dorajeerao

A field experiment was carried out during rabi season of 2018-2019, at college farm, College of Horticulture, Dr. Y.S.R. Horticultural University, Venkataramannagudem, West Godavari District, Andhra Pradesh. The experiment was laidout in a Randomised Block Design with eleven treatments (viz., T1- NAA @ 50 ppm, T2-NAA @ 100 ppm, T3-GA3 @ 50 ppm,  T4-GA3 @ 100 ppm, T5-Thiourea @ 250 ppm, T6-Thiourea @ 500 ppm, T7-28-Homobrassinolide @ 0.1 ppm, T8-28-Homobrassinolide @ 0.2 ppm, T9-Triacontinol @ 2.5 ppm, T10-Triacontinol @ 5 ppm, T11-(Control) Water spray) and three replications. The treatments were imposed at 30 and 45 DAT in the form of foliar spray. Foliar application of GA3@ 100 ppm (T4) had recorded the maximum plant height (108.20 cm), leaf area (9.53 cm2) and leaf area index (0.74). Foliar application of thiourea @ 250 ppm (T5) had recorded the maximum values with respect to number of primary branches (15.03 plant-1), number of secondary branches (83.40 plant-1), plant spread (1793 cm2 plant-1), fresh weight (376.29 g plant-1), dry weight (103.54 g plant-1) and number of leaves plant-1((298.8). The same treatment (T5) had recorded the highest values with respect to crop growth rate (1.44 gm-2d-1), chlorophyll-a (1.40 mg g-1), chlorophyll-b (0.076 mg g-1) and total chlorophyll contents (1.48 mg g-1) in the leaves.


2017 ◽  
Vol 4 (3) ◽  
pp. 157-164
Author(s):  
Mohammad Issak ◽  
Most Moslama Khatun ◽  
Amena Sultana

The experiment was conducted to study the effect of salicylic acid (SA) as foliar spray on yield and yield contributing characters of BRRI Hybrid dhan3.The experiment was laid out in a randomized complete block design (RCBD) with three replications and six treatment combinations as, T1: 0 μM SA, T2: 200 μM SA, T3: 400 μM SA, T4: 600 μM SA, T5: 800 μM SA and T6: 1000 μM SA. The results revealed that biomass production, dry matter production and yield and yield contributing characters were significantly increased due to the foliar application of SA. At the maximum tillering (MT) stage, the highest biomass production (15.0 t/ha) and dry matter production was observed in T3 treatment. Treatments T4, T5 and T6 showed significant variation on the effective tillers/hill. The maximum effective tillers/hill were found in the treatment T6. The percentages of spikelet sterility were decreased with increasing the level of SA and the percentage of filled grains/panicle were increased with increasing level of SA. The insect infestation was reduced with increasing level of SA to up to 1000 μM. The maximum grain yield (9.21 t/ha) and straw yield (9.22 t/ha) was found in the treatment T6 which was identical to T5. On the other hand, in all cases the lowest results were found in the control treatment. The result showed that grain yield of rice increased with increasing level of SA to up to 1000 μM (T6 treatment). Our results suggest that foliar spray of SA might be applied to increase the yield of hybrid rice in Bangladesh.Res. Agric., Livest. Fish.4(3): 157-164, December 2017


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