Effect Of Different Sowing Dates Research Articles

Effect of different sowing dates and nipping on growth and yield of pigeon pea (Cajanus cajan L Millsp.)

Effect of different sowing dates and nipping on growth and yield of pigeon pea (Cajanus cajan L Millsp.)

Effect of different sowing dates on growth, herbage yield and quality of different hybrids of spinach (Spinacia oleracea L.) under Prayagraj agro-climate conditions

Effect of different sowing dates on growth, herbage yield and quality of different hybrids of spinach (Spinacia oleracea L.) under Prayagraj agro-climate conditions

Effect of Different Sowing Dates and Establishment Methods on Growth, Yield and Economics of Mustard (Brassica juncea L.)

Adaption of Furrow Irrigated Raised Bed System (FIRBS) and date of seeding are one of the important input for crop production particularly for rabi crop. Early planting through raised bed of mustard can compensate the late planting at least 10-15 days. Under this circumstance the use of raised bed planter along with timely sowing of mustard can produce higher yield. An adaptive research trail was conducted during the rabi season of 2020-21 and 2021-22 at farmer’s field in Jamui district to study the effect of different sowing dates and establishment methods of mustard crop. The trail was conducted in a factorial randomized block design with two method of sowing and three dates of sowing. The growth characters like plant height, leaf area index, no. of primary branches plant-1, no. of secondary branch plant-1, no. of silique plant-1, no. of seeds silique-1 were recorded. Test weight, grain and straw yield was influenced significantly due to different sowing dates and sowing methods. Higher plant height at harvest stage (160 cm), leaf area index at 60 DAS (3.3), no. of primary branches plant-1 (4.0), no. of secondary branch plant-1 (7.8), no. of silique plant-1 (292.4), no. of seeds silique-1 (9.7), test weight (3.8), grain (10.1 q ha-1) and straw yield (22.4 q ha-1) were recorded when the crop was sown on 05th November during both years. Whereas the mustard crop sown on FIRBS recorded highest growth attributes, yield components and seed yield (12.5 q ha-1) as compared to conventional method. Highest benefit cost ratio was calculated with (FIRBS) Furrow Irrigated Raised Bed system (2.0) as compared to all other treatments.

Effect of different sowing dates and cultivars on the incidence of alternaria leaf blight in ajwain (Trachyspermum ammi L.)

Effect of different sowing dates and cultivars on the incidence of alternaria leaf blight in ajwain (Trachyspermum ammi L.)

Effects of different sowing dates on biomass allocation of various organs and allometric growth of Fagopyrum esculentum.

The sowing date plays a crucial role in influencing the growth and reproduction of plants, with its specific impact on biomass allocation and allometric growth remaining unclear. Understanding these effects is essential for optimizing agricultural practices and enhancing crop productivity. To investigate the effects of sowing dates on biomass allocation and allometric growth, a field experiment was conducted with sequential sowings of Fagopyrum esculentum from April 12th to August 11th in 2018. Biomass measurements were taken across various plant organs, and corresponding allocation calculations were made. A detailed analysis of the allometric growth relationship involving organ biomass variations was performed. The study revealed that the accumulation and allocation of organ biomass in buckwheat were significantly impacted by the sowing dates. Delayed planting led to reduced vegetative growth and increased biomass allocation towards reproduction. Allometric parameters such as exponent, constant, and individual size of buckwheat were notably affected by delayed planting. Interestingly, the allometric exponents governing the relationships between reproductive vs. vegetative biomass and belowground vs. aboveground biomass exhibited varying trends across different sowing dates. Notably, late sowings resulted in significantly higher reproductive biomass compared to early and middle sowings. These findings highlight the nuanced relationship between plant size and reproductive biomass under different sowing dates, emphasizing the critical role of planting timing in shaping mature plant sizes and reproductive outcomes. The study underscores the importance of considering sowing dates in agricultural practices to optimize plant growth and productivity.

Growth Analysis of Coriander (Coriandrum sativum L.) as Influenced by Different Sowing Dates and Planting Geometry in Chhattisgarh Plains Zone

An experiment was conducted to assess the effect of different sowing dates and planting geometry on coriander during the winter seasons of 2020-21 and 2021-22 at Instructional farm, College of Agriculture and Research Station, IGKV, Raigarh, Chhattisgarh. The experiment was laid out in split-plot design, comprised of four date of sowing viz., D1: 25th October, D2: 10th November, D3: 25th November and D4: 10th December as main plot and four planting geometries viz., S1: 30 x 5 cm, S2: 30 x 7.5 cm, S3: 30 x 10 cm and S4: 30 x 12.5 cm as sub-plot, and replicated trice. Influence of above treatments on crop was studied regarding growth parameters of coriander and analyzed statistically. The result showed that the crop sown on 25th October recorded significantly higher growth parameters viz., plant height, number of branches, dry matter accumulation, crop growth rate and relative growth rate. Among planting geometry, sowing of coriander at 30 x 12.5 cm spacing produced significantly taller plants, higher number of branches plant-1, dry matter accumulation plant-1, crop growth rate and relative growth rate. Coriander sown on 25th October interacted with the 30 x 12.5 cm spacing and registered significantly higher dry matter accumulation.

Cotton yield responses to climate change and adaptability of sowing date simulated by AquaCrop model

The feedback mechanism of cotton yield to climate change is important knowledge for cotton planting planning and stable production. However, the impact of sowing date on cotton yield in China's main cotton producing areas under future climate change is still unclear. To deal with it, this study first evaluated the applicability of the AquaCrop model using actual observed cotton growth and yield data. Then, based on the 27 Global Climate Models (GCMs) multi-model ensemble data in the Sixth Coupled Model Intercomparison Project (CMIP6), the future climate changes in China 's main cotton producing areas from 2021 and 2060 (2040 s) and 2061–2100 (2080 s) under two typical Shared Socioeconomic Pathways (SSP) 2–4.5 and SSP5–8.5 were predicted. Finally, the effects of different sowing dates on cotton yield under SSP2–4.5 and SSP5–8.5 scenarios were simulated. The results showed that: (1) AquaCrop model had good applicability and it could accurately simulate cotton growth and yield. (2) The temperature under the SSP2–4.5 and SSP5–8.5 scenarios increased significantly compared with the baseline period (1985–2020). Precipitation during the cotton growth period mainly showed an increasing trend, but the spatial and temporal variability was large. The reference crop evapotranspiration (ETo) during the cotton growth period mainly showed a decreasing trend under the SSP2–4.5 (2040 s) scenario, while it mainly showed an increasing trend in other future periods. (3) The cotton yield under the SSP2–4.5 and SSP5–8.5 scenarios increased by an average of 10.51% and 13.67%, 14.76% and 28.04% in 2040 s and 2080 s compared to the baseline period (1981–2015), respectively. (4) Early sowing was beneficial to increase cotton yield, cotton yield sown on March 31 increased by an average of 5.32% compared to May 10. In conclusion, future climate change will have positive impacts on cotton production in China, and early sowing is an effective adaptation measure to cope with climate change.

Effects of sowing date on photosynthetic characteristics, chlorophyll fluorescence and yield of different Echium plantagineum L. cultivars

The seed oil of Echium plantagineum L. is rich in unsaturated fatty acids. With the gradual development of the value of echium oil in food, medical care and cosmetics, the corresponding market demand has also increased. The selection of suitable cultivars and the increase of yield per unit area has also become one of the main objectives of current breeding and cultivation of E. plantagineum. To effectively use the local photothermal resources, to improve the use of light energy by E. plantagineum, and to enhance the growth and yield of E. plantagineum. E. plantagineum cultivars Blue Bedder and Mixed Bedding were used as research subjects to study the effects of different sowing dates (1 May, 8 May, 15 May, 22 May and 29 May) on the photosynthetic characteristics and yield of E. plantagineum. Under the same cultivar conditions, with the delay in sowing date, the leaf chlorophyll content (SPAD), photosynthetic rate (Pn), transpiration rate (Tr), stomatal limitation value (Ls), photochemical quenching (qP), electron transfer rate (ETR), actual photochemical efficiency (ΦpsII) and yield of Blue Bedder decreased and reached a maximum at T1, while the SPAD, Pn, Tr, water use efficiency (WUE), Ls, initial fluorescence (Fo), maximum fluorescence (Fm), qP, ETR, ΦpsII and yield of Mixed Bedding reached the maximum at T4. Blue Bedder should be sown early at T1 and Mixed Bedding late at T4 during planting, which will help to improve the photosynthetic characteristics and grain yield of E. plantagineum.

Effect of Different Sowing Dates and Various Varieties on Seedling Growth of Late Kharif Onion (Allium cepa L.) in Assam

Experiments were conducted on sandy loam soil of Horticulture Experimental Farm, Department of Horticulture, College of Agriculture, Assam Agricultural University, Jorhat, Assam during 2020-21 and 2021-22. The experiment was conducted on “The effect of different sowing dates and various varieties on seedling growth of late kharif onion (Allium cepa L.) in Assam.” Fifteen treatment combinations comprising of five onion varieties viz., Arka Kalyan, Bhima Dark Red, Agrifound Dark Red, Bhima Super and Bhima Red and three dates of sowing viz., 25th August, 5th September and 15th September were tested in Factorial Randomized Block Design (FRBD) with three replications. At the nursery stage, on the basis of pooled data, the relationship of different growth characters with various varieties and different dates of sowing revealed that variety Bhima Super sowing on 25th August (D1V4) was the best in the number of leaves (3.77), fresh weight of seedling (344.16 mg) and dry weight of seedlings (58.85 mg) at 40 days of sowing. Number of leaves per plant 25, 30 and 35 days after sowing were not affected by combination of various varieties and different dates of sowing.

Effect of Irrigation Level and Sowing Date on Yield of Field Bean in Saline Soils of Konkan Region of Maharashtra

A field experiment was conducted during consecutive Rabi seasons of 2019-2020 and 2020-2021 in coastal saline soils at Khar Land Research Station, Panvel, Maharashtra, India to study the effect of different sowing dates and irrigation levels on the production potential of field bean. The experiment was laid out in factorial randomized block design (FRBD) with four replications, comprising three dates of sowing viz., immediately after harvest of paddy (D1), 10 days after harvest of paddy (D2), and 20 days after harvest of paddy (D3); and three irrigation levels viz., no irrigation (I0), one irrigation at flowering (I1), and one irrigation each at flowering and at pod formation (I2). The results showed that the treatment D1 recorded significantly higher seed yield of field bean (915 kg.ha-1) over D2 (713 kg.ha-1) and D3 (605 kg.ha-1). Among the irrigation levels, treatment I1 resulted in significantly higher seed yield of field bean (856 kg.ha-1) over I2 (726 kg.ha-1) and I0 (650 kg.ha-1). The treatment combination I1D1 produced significantly higher seed yield of field bean (1065 kg.ha-1) with higher net realization (1,06,500 ₹.ha-1), net income (55,222 ₹.ha-1) and benefit cost ratio (2.08). Both sowing date and irrigation level played important role in management of root zone soil moisture and soil salinity which influenced the seed yield. Sowing of field bean immediately after the harvest of paddy and providing one irrigation at the time of flowering is recommended to obtain better yield and returns from the field beans cultivated in Konkan region of Maharashtra.

Effect of Different sowing dates under Intercropping Patterns for Fahl Berseem and Wheat Crop Under the North Middle Nile Delta Region

Effect of Different sowing dates under Intercropping Patterns for Fahl Berseem and Wheat Crop Under the North Middle Nile Delta Region

Effect of Different Weather Relationship in Barley (Hordeum vulgare L.) in Different Sowing Dates and Varieties in Prayagraj Conditions

A field experiment entited “Effect of different sowing dates and varieties on growth and yield of barley (Hordeum vulgare L.) Under Prayagraj conditions” was conducted during the Rabi season of 2021-2022. The experiment was set at forestry field of Sam Higginbottom University of Agriculture Technology and Science Prayagraj U.P. The experiment was laid out Factorial RBD with three replications having two factors. First factor comprised of three dates of sowing 15oct. 30 Oct. and 15 Nov. whereas second factor consist of three Barley varieties viz; Parth, SHB832, and RD 2052 Crop sown on 15th November recorded higher seed yield as compared to 30th October and 15th October sowing. In cases plant growth parameters of Barley maximum was recorded under 15th November as compared to 30th October and 15th October and in case of varieties maximum growth, plant height, no of tillers per plant, dry weight of per plant, length of spike, grain spike per plant, test weight, grain yield, straw yield, was recorded with 15th nov RD 2052 variety as compared to 15th Oct. Parth and 30th Oct. SHB 832. 15th November sowing with RD 2052 variety proved the most remunerative and economically feasible for cultivation of Barley under the agro climatic conditions of Prayagraj UP.

Effect of Different Sowing Dates and Varieties on Mustard Growth and Yield in Prayagraj Conditions

A field experiment was conducted during the winter seasons of 2021-22 at the Research farm of the college of forestry Sam Higginbottom University of Agriculture Technology and Science Prayagraj (U. P) to investigate the effect of different sowing dates and varieties on Mustard growth and yield in Prayagraj conditions Keeping in this view experiment was conducted in Factorial RBD with three replications having two factors. First factor comprised of three dates of sowing 15Oct. 30Oct. and 15Nov. whereas the second factor consists of three Indian mustard varieties viz; Maharaja Mustard, Md Rani Supergold, Kala Sona, Crop sown on 15th November was recorded statistically significant higher seed yield, stover yield, test weight, harvest index and at maturity best consumption of heat units like gdd, htu and ptu as compared to 30th October and 15th October sowing. In the case of plant growth parameters of mustard, maximum was recorded under 15th November as compared to 30th October and 15th October and in case of varieties maximum plant growth like plant height, no of leaves no of branches, no of silique, and optimum use of heat units was recorded with md rani super gold as compared to kala sona and maharaja. The treatment with the date of sowing 15th November and md rani super gold variety proved the most remunerative and economically feasible for the cultivation of Indian mustard under the agro-climatic conditions of Prayagraj U.P.

EFFECT OF PLANTING DATES ON GROWTH PERFORMANCE AND FLOWER QUALITY OF GLADIOLUS IN PAKISTAN

Gladiolus is one of the leading bulbous flowers due to the high demand of its double row spikes of different colors in domestic and international markets. Gladiolus flower quality and growth performance are largely depending on growing media, environmental condition but planting dates are considered as key factor which effect the growth indices and quality attributes of the flowers. To evaluate the effect of different sowing dates on growth and flowering of gladiolus, a study was conducted at National Agriculture Research Council Islamabad (NARC) during the year of 2017. Results revealed that sowing date of gladiolus flower significantly affect the reproductive and vegetative phase of plants. It has been observed that seed emergence and spike length was enhanced when seeds were sown at initial dates as compared to late sowing. In contrary to these, plant height and rachis length was reduced at early sowing dates but significantly increased with sowing of seeds at later dates. Overall, it has been concluded from the present study that gladiolus growth performance and flowers quality are improved when seeds were sown at earlier dates compared to late sowing.

Determination of the Effect of Different Sowing Dates on Growth and Yield Parameters of Some Dry Bean (Phaseolus vulgaris L.) Varieties

The sowing date is one of the environmental factors that significantly affected the growth and development of dry beans. Recently, the rapid change of climate required arrangement in its sowing dates. This study aimed to evaluate the effect of different sowing dates (10/03/2018, 04/03/2018, and 04/05/2018) on the phonological, morphological, and yield performances of six dry bean varieties. The experiment was carried out at Dicle University, Faculty of Agriculture Department of Field Crops in the 2018 spring and summer seasons. The experiment established randomized complete blocks design in split plots with three replications. The sowing dates significantly affected the days to seed emergence, days to first flowering, days to 50% flowering, days to maturity, first pod height, number of branches per plant, pod width, plant weight, and pod weight per plant, number of pods per plant, number of seeds per plant, seed yield per plant, biological yield and seed yield. As the sowing date was delayed, there was a decrease in all traits. The highest biological and seed yield was in early to mid-March sowing (10/03/2018) date in Cihan and Aras-98 varieties (1610.90 kg ha-1, 1850.30 kg ha-1, respectively). The early sowing date provided better growth and development in cold tolerance varieties. Adabeyazi, Cihan and Ahlat varieties were the most tolerant to low temperatures, thus the crop growth and yield increased for these varieties in the early to mid-March sowing date.

The effect of sowing dates on the pod yield and some agronomic and quality characteristics of ‘Virginia’-type peanut variety ‘Halisbey’ in the Mediterranean environment

The objective of this study was to determine the effect of different sowing dates on pod yield and some agronomic characteristics of the ‘Virginia’-type peanut cultivar ‘Halisbey’, and to determine the optimal sowing date in the Mediterranean region. This study was conducted in 2018 and 2019 at the Experimental Research Farm of Agricultural Faculty, Cukurova University in Adana, Turkey. The seeds were sown on seven dates: March 28, April 8, April 18, April 28, May 8, May 18 and May 28 each year. The experiment included a randomized complete block design with three replications. The plants were harvested 160 days after sowing, starting on September 8 every year. Pod number and pod weight per plant, 100 seeds weight, shelling percentage, oil and protein content, pod and kernel yield per hectare were investigated. As a result, pod number and weight per plant, 100 seeds weight, shelling percentage, pods and kernel yield values were found to be the highest at the experimental variant with May 8 sowing date. While the oil content decreased by delaying the sowing date, the protein content was increased. According to a two-year average, the highest pod yield (8136 kg ha-1) and kernel yield (5711 kg ha-1) were also obtained at the experimental variant with May 8 sowing date.

Effect of Sowing Dates on the Bacterial Leaf Spot of Bottle Gourd and Pumpkin Caused by Xanthomonas cucurbitae

An experiment was conducted at Experimental Farm, College of Horticulture and Forestry, Neri, Hamirpur during May 2019 to October, 2019 cropping season to study the effect of different sowing dates viz., 17th May (1st), 7th June (2nd), 27 June (3rd) and 17th July (4th) on the development of bacterial leaf spot of bottle gourd and pumpkin caused by Xanthomonas cucurbitae. It was observed that the mean disease severity in both bottle gourd and pumpkin crops decreased with delay in the date of sowing from mid May (40.15 and 31.73%, respectively) to the end of June (27th June, 31.65 and 27.06%, respectively) or mid July (17th July, 23.32 and 20.13%, respectively). The disease incidence was also found to be minimum in the fourth (31.31%) and third (39.60%) dates of sowing in case of bottle gourd fruits and no incidence of the bacterial spot was recorded in case of pumpkin fruits. In the case of bottle gourd, the expected yield loss was minimum in crops sown mid July (31.44%) while in pumpkin, the fruit yield was more in mid July (9.59 kg vine-1) sown crop in comparison to mid May and early June sown crops. So, it was concluded that late June and mid July sown crops of both bottle gourd and pumpkin are less vulnerable to the disease leading to reduced crop losses and higher yield.

Effect of different sowing dates on the determination of the number of leaves and spikelets on the main stem in durum wheat

Effect of different sowing dates on the determination of the number of leaves and spikelets on the main stem in durum wheat

Interplay of irrigation strategies and sowing dates on sunflower yield in semi-arid Mediterranean areas

Sunflower (Helianthus annuus L.) is one of the most cultivated oil crops in the world. Given its high dependence on water availability, its cultivation in the Mediterranean area is severely threatened by climate change: very hot and dry weather conditions currently occurring in the Mediterranean area have a negative impact on sunflower yield. Many studies have pointed to earlier sowing dates as a promising strategy to prevent summer drought stress causing sunflower yield losses, but the literature on winter sowing dates is scarce. The aim of this research was to quantify the interplay between sowing date (winter time included) and water regime to sustain sunflower cultivation in the Mediterranean area. A field experiment and a modeling study were carried out to evaluate the effects of different sowing dates (00SD: ‘conventional sowing date’ in March/April and ‘earlier sowing dates’ in December-January-February, depending on years) under two different water regimes (irrigated vs. rainfed) on quantitative traits of high oleic cultivars of sunflower. Field experiments revealed that sowing in late February - mid March was the most effective strategy in terms of achene productivity. Achene production by sunflower was also simulated using EPIC under a baseline climatic scenario and for 4 hypothetical sowing dates (D1: 10th January, D2: 10th February, D3: 10th March, D4: 10th April) and different irrigation strategies. The most effective sowing date was D3 under rainfed conditions, confirming the results of the field study. Irrigation from 20 days before anthesis up to flowering significantly improved achene yield for the early sowing dates (D1 and D2), which almost reached their respective yield potentials. This confirms that an earlier sowing date could be a viable management strategy in Mediterranean areas with little water availability.

The effect of different sowing dates on dry matter and nitrogen dynamics for winter wheat: an experimental simulation study.

BackgroundTimely sowing is an important agronomic measure to ensure the normal germination, stable seedling establishment, and yield formation for winter wheat (Triticum aestivum L.). Delayed sowing frequently occurs in the current multi-cropping system and mechanized production of this crop. However, the ways in which different sowing dates affect yield and its potential mechanism is still unknown in the middle-lower Yangtze River Basin. We sought to provide a theoretical basis for these mechanisms to improve regional wheat production.MethodsWe investigated the wheat’s yield differences in a two-year field study under different sowing dates and took into account related growth characteristics including meteorological conditions, growth period, tillers, dry matter accumulation (DMA), and nitrogen accumulation (NA). We used the logistic curve model to simulate DMA and NA dynamics of single stem wheat under different sowing dates. We then analyzed and compared wheat accumulation for different sowing dates.ResultsOur results showed that grain yield declined by 0.97 ± 0.22% with each one-day change (either early or delayed) in sowing beyond the normal sowing date. The yield loss could be explained by the inhibition of crop growth, yield components, biomass and nitrogen (N) production. The negative effects of delayed sowing were caused by environmental limitations including adverse weather factors such as low temperature during vegetative growth, shortened duration of various phases of crop development, and increased temperature during the grain-filling period. The grain yield gap decreased between the late and normal sowing periods owing to a compensatory effect between the highest average rates (Vt) and the rapid accumulation period (T) of DMA and NA for single stem wheat. The grain yield was maintained at 6,000 kg ha−1 or more when the ratio of DMA at the mature-to-jointing stage (MD/JD) and the ratio of NA at the mature-to-jointing stage (MN/JN) was 4.06 (P < 0.01) and 2.49 (P < 0.05), respectively. The compensatory effect did not prevent the impact caused by delayed sowing, which caused biomass and N production to decrease. Physiological development reached a maximal accumulation rate (Tm) of NA earlier than DMA.