scholarly journals Influence of priming and nitrogen on growth behavior of buckwheat (Fagopyrum esculentum) in rainfed condition of midhill in Nepal

2018 ◽  
pp. 47-54
Author(s):  
J. J. Gairhe ◽  
T. N. Bhusal ◽  
H. Neupane
Keyword(s):  
Moisture Content ◽  
Grain Yield ◽  
Harvest Index ◽  
Dry Matter ◽  
Seed Priming ◽  
Germination Percentage ◽  
Dry Matter Accumulation ◽  
Straw Yield ◽  
Nitrogen Levels ◽  
Gm Plant

 An experiment was conducted during winter, 2010/11 at IAAS, Lamjung with the objective of studying effect of seed priming and nitrogen levels on yield and yield attributing characters of buckwheat. Altogether, there were 9 treatments of seed priming hours (0, 18 and 36) combined with nitrogen levels (30, 45 and 60 kg/ha). The experiment was laid out in randomized complete block design and each treatment was replicated thrice. The seed priming of 36 hours had resulted in significantly higher germination percentage in both 15 days after sowing (DAS) (4.40%) and 30 (DAS) (5.74%) The total germination percentage was also significantly higher (48.4%) with 36 hr seed priming. The main and interaction effects of seed priming and nitrogen levels had significant influence on days to 50% flowering. The dry biomass per plant, grain yield, straw yield, harvest index and percentage moisture content of biomass at harvest were found non-significantly different due to seed priming and nitrogen levels. The highest value for dry matter accumulation per plant (5.24 gm/plant), straw yield (8706 kg/ha) and % moisture content (71.0%) was recorded with 36 hr seed priming whereas the highest value for grain yield (1599 kg/ha), and harvest index (19.8) was obtained with 18 hr seed priming. Likewise, dry matter accumulation (5.38 gm/plant), grain yield (1575 kg/ha) and harvest index (22.0) was found highest in 45 kg N/ha. Similarly, the straw yield (9153 kg/ha) and % moisture content (75.3%) was found highest in the treatment with 60 kg N/ha. The interaction effect between nitrogen level and priming was found non-significant and the highest grain yield (2091 kg/ha) was obtained from 18 hr seed priming with 45 kg N/ha. Phosphorus consumption rate was intrestingly higher in buckwheat plot with nitrogen application. Moderate consumption of potassium was also observed while nitrogen content in soil remain apparantly unchanged and similar was the case with soil pH and organic matter content. Application of phosphatic fertilizer would be benefitial for buckwheat cultivation. Further experiment should be done to verify the effective dose of fertilizer.Journal of the Institute of Agriculture and Animal Science. Vol. 33-34, 2015, Page: 47-54

scholarly journals Effect of the duration of the vegetative phase on crop growth, development and yield in two contrasting pearl millet hybrids

1988 ◽  
Vol 110 (1) ◽  
pp. 71-79 ◽  
Author(s):  
P. Q. Craufurd ◽  
F. R. Bidinger
Keyword(s):  
Grain Yield ◽  
Leaf Area ◽  
Pearl Millet ◽  
Harvest Index ◽  
Dry Matter ◽  
Grain Filling ◽  
Stem Growth ◽  
Dry Matter Accumulation ◽  
Dry Matter Partitioning ◽  
Vegetative Phase

SummaryThe phenotype of medium duration pearl millet varieties grown in West Africa differs from that of the shorter duration millets grown in India. African varieties are usually much taller, have longer panicles, fewer productive tillers, and a lower ratio of grain to above-ground dry-matter (harvest index). The effect of crop duration on plant phenotype was investigated in two hybrids using extended daylengths to increase the duration of the vegetative phase (GSl: sowing to panicle initiation). The two hybrids, 841A × J104 and 81A × Souna B, were considered to represent the Indian and African phenotype, respectively. Tiller production and survival, leaf area, and dry-matter accumulation and partition, were monitored over the season. Grain yield and its components were determined at maturity.The two hybrids responded similarly to the short and long daylength treatments. The duration of GSl was increased from 20 to 30 days, resulting in increased number of leaves, leaf area, and stem and total dry-matter accumulation; there was no effect on tiller production and survival, or on panicle growth rate. Grain yield was, therefore, the same in both GSl treatments, and harvest index (HI) was much reduced in the long GSl treatment owing to the increased stem growth. One evident effect of a longer GSl was on dry-matter partitioning between shoots; partitioning to the main stem (MS) was increased, whereas partitioning to the tillers was reduced.There was no difference in crop development, growth or yield between the two hybrids in either GSl treatment. The only significant differences were in the efficiency with which intercepted radiation was converted to dry matter, which was greater in 841A × J104 than in 81A × Souna B, and in the balance between MS and tillers; the grain yield of the MS was significantly greater in 81A x Souna B than in 841A × J104, but at the expense of number of productive tillers.The results demonstrate that both African and Indian phenotypes are equally productive under good agronomic conditions. The lower HI in longer duration African millets is a consequence of a much extended stem growth phase and therefore increased competition between stem and panicle during grain filling. Possible ways to increase grain yield in the medium duration African millets are considered.

Dry matter accumulation and distribution in five cultivars of maize (Zea mays): relationships and procedures for use in crop modelling

1999 ◽  
Vol 50 (4) ◽  
pp. 513 ◽  
Author(s):  
C. J. Birch ◽  
G. L. Hammer ◽  
K. G. Rickert
Keyword(s):  
Grain Yield ◽  
Harvest Index ◽  
Dry Matter ◽  
Radiation Use Efficiency ◽  
Dry Matter Accumulation ◽  
Degree Days ◽  
Grain Number ◽  
Plant Parts ◽  
Use Efficiency ◽  
Radiation Use

The ability to predict accurately dry matter (DM) accumulation, partitioning, and thus final grain yield is crucial in crop simulation models. The objectives of the study were to measure radiation interception and radiation use efficiency, to quantify the distribution of DM among the various plant parts, and to develop improved methods of modelling DM accumulation and partitioning among plant parts. Five cultivars of maize differing widely in maturity and adaptation were planted in October 1993 in south- eastern Queensland, and grown under non-limiting conditions of water and plant nutrient supplies. Data on DM accumulation, light interception, and canopy development were collected. The light extinction coefficient (k) did not differ among the cultivars. Radiation use efficiency was constant in each cultivar until close to physiological maturity, when a small decline was observed. Partitioning of DM between leaves and stems (until 90% of leaf tips had appeared) was described by a linear relationship between the proportion of DM allocated to leaves and the number of leaves present. Ear growth was described by a thermal-time-dependent equation from 150 degree-days (base temperature 8˚C) before silking to 115 degree-days after silking. Predictions of accumulation of grain yield by either components of yield (grain number per plant and individual grain weight) or daily increase in harvest index were assessed, but neither was entirely satisfactory, the former because of inaccurate prediction of grain number per plant, and the latter because of differences among cultivars in the daily increase in harvest index and terminal harvest index. Thus, the use of genotype-specific coefficients remains necessary. Throughout crop life, DM in stems can be predicted by difference, once DM is allocated to other plant parts. The relationships presented where leaf number mediates DM partitioning before silking simplify modelling of DM accumulation and partitioning in maize.

scholarly journals Effect of variety and nitrogen rate on the yield performance of boro rice

2015 ◽  
Vol 26 (1) ◽  
pp. 6-14 ◽  
Author(s):  
SG Chamely ◽  
N Islam ◽  
S Hoshain ◽  
MG Rabbani ◽  
MA Kader ◽  
...  
Keyword(s):  
Grain Yield ◽  
Harvest Index ◽  
Dry Matter ◽  
Block Design ◽  
Panicle Length ◽  
Straw Yield ◽  
Randomized Complete Block Design ◽  
Harvest Data ◽  
1000 Grain Weight ◽  
Boro Rice

An experiment was conducted at the Agronomy Field Laboratory, Bangladesh Agricultural University, Mymensingh during the period from November 2010 to May 2011 to study the effect of variety and rate of nitrogen on the performance of Boro rice. The experiment comprised three varieties viz., BRRI dhan28 (V1), BRRI dhan29 (V2) and BRRI dhan45 (V3); and five rates of nitrogen viz., control (N0), 50 kg  (N1), 100 kg (N2), 150 kg  (N3)and 200 kg  (N4) N ha-1. The experiment was laid out in a randomized complete block design with four replications. The growth analysis results indicate that the tallest plant (80.88 cm) and the highest number of total tillers hill-1 (13.80) were observed in BRRI dhan29 at 70 DATs and the highest total dry matter (66.41 g m-2) was observed in BRRI dhan45. The shortest plant (78.15 cm) and the lowest number of tillers hill-1 (12.41) were recorded from BRRI dhan45 and the lowest dry matter (61.24 g) was observed in BRRI dhan29. The tallest plants (84.01 cm), highest number of tillers hill-1 (14.06) and the highest dry matter (69.58 g m-2) were obtained from 200 kg N ha-1. The tallest plants (86.48 cm) and maximum dry matter (72.30 g m-2) were recorded from BRRI dhan28 with 200 kg N ha-1 and BRRI dhan45 with 200 kg N ha-1, respectively. The highest number of tillers hill-1 (15.14) was obtained from BRRI dhan29 with 50 kg N ha-1. The harvest data reveal that variety had significant effect on total tillers hill-1, effective tillers hill-1, non-effective tillers hill-1, panicle length, grain yield, straw yield and harvest index. The highest grain yield (4.84 t ha-1) was recorded from BRRI dhan29. The results of the experiment also indicate that total tillers hill-1, effective tillers hill-1, grains panicle-1, sterile spikelets panicle-1, grain yield, straw yield and harvest index were significantly affected by levels of nitrogen, while plant height, panicle length, 1000-grain weight were not significantly affected by levels of nitrogen. The highest grain yield (5.58 t ha-1) was obtained from 200 kg N ha-1. Interaction effect of variety × 200 kg N ha-1 produced the highest grain yield (5.82 t ha-1). From the results of the study it may be concluded that BRRI dhan29 rice may be cultivated with 200 kg N ha-1 for obtaining higher yield in AEZ 9 of Bangladesh.Progressive Agriculture 26:6-14, 2015

scholarly journals Influence of sowing dates and nitrogen levels on growth, yield and quality of scented rice cv. Pusa Sugandh-3 in Kashmir valley

2016 ◽  
Vol 8 (3) ◽  
pp. 1704-1709
Author(s):  
Sheeraz Ahmad Wani ◽  
Sameera Qayoom ◽  
Mohammad Amin Bhat ◽  
Bilal Ahmad Lone ◽  
Aijaz Nazir
Keyword(s):  
Grain Yield ◽  
Plant Height ◽  
Harvest Index ◽  
Dry Matter ◽  
Growth Yield ◽  
Climatic Conditions ◽  
Kashmir Valley ◽  
Nitrogen Levels ◽  
Head Rice ◽  
Sowing Dates

A field experiment was carried out to determine the optimum sowing date and nitrogen (N) level for the scented rice cv. Pusa Sugandh-3. Twelve treatment combinations of 3 sowing dates, viz., 15th, 16th and 18th standard meteorological week (SMW) at an interval of 10 days and 4 nitrogen levels (‘0’, ‘40’, ‘60’ and ‘80’ kg N ha-1) were tested randomized in split plot design with three replications. Significant highest plant height (98.56 cm), tillers m-2 (333.41), dry matter (98.38 q ha-1), panicles m-2 (310.05), spikelets panicle-1(130.25) and grains panicle-1 (98.55), grain yield (45.2 q ha-1), harvest index (41.20 %), head rice recovery (47.5 %) and B:C ratio (3.03) were recorded for the early sown 15th SMW crop. Among the different nitrogen levels tested significant highest plant height (98.12 cm), tillers m-2 (342.33) dry matter (100.68 q ha-1), panicles m-2 (321.83), spikelets panicle-1(132.83) grains panicle-1 (96.79), grain yield (48.0 q ha-1), harvest index (42.68 %), head rice recovery (44.54 %) and B:C ratio (3.38) were recorded with the application of 80 kg N ha-1.Therefore, the variety, Pusa Sugandh-3 should be sown earlier in season from 15th to 16th SMW and with nitrogen application of 60-80 kg N ha-1 for realizing economically higher grain yield and profit under the temperate climatic conditions of Kashmir valley.

scholarly journals Effect of Date of Transplanting on Growth and Productivity of Rice (Oryza sativa L.) Cultivars

2021 ◽  
Author(s):  
Pardeep Kaur Mann ◽  
Balwinder Singh Dhillon
Keyword(s):  
Grain Yield ◽  
Harvest Index ◽  
Dry Matter ◽  
Underground Water ◽  
Dry Matter Accumulation ◽  
Rice Cultivars ◽  
Panicle Length ◽  
Higher Plant ◽  
Area Index ◽  
1000 Grain Weight

Background: In central Punjab, the primary cause of depleting underground water is early transplantation of long-duration rice varieties. Because of their growth in rainy days and early maturity, the cultivation of medium-duration varieties in the low evaporation period can help to migrate the over draft of underground water. Methods: The field experiment entitled “Effect of date of transplanting on growth and productivity of the rice (Oriza sativa L.) cultivars” was conducted at Research Farm of University College of Agriculture, Guru Kashi University, Talwandi Sabo, Bathinda to study the impact of date of transplanting on growth and productivity of the rice cultivars during kharif season in 2019. The trail was laid out in split plot design with three dates of transplanting (June 15, June 25 and July 5) in main plot and three rice cultivars (PR 122, PR 126 and PUSA 44) in sub plot, replicated thrice. Result: Transplanting on 15 June crop recorded significantly higher plant height at 30, 60 DAT and at harvest viz. 67.4, 110.0 and 122.6 cm respectively; number of tillers at 30, 60 DAT and at harvest viz. 59.4, 58.2 and 46.2 respectively; leaf area index (LAI) at 60 DAT (3.1); dry matter accumulation (DMA) at 30, 60 DAT and at harvest viz. 8.5, 26.7 and 132.6 q/ha respectively; number of days taken to panicle initiation (57.6); number of days taken for 50 per cent flowering (64.1); effective tillers per meter row length (38.6); panicle length (26.1 cm); panicle weight (6.1 g); number of grains per panicle (177.9); 1000-grain weight (31.0g); grain yield (72.2 q/ha); straw yield (161.1 q/ha); harvest index (33.4%). The grain yield was at par with June 25. Among the cultivars, PUSA 44 recorded significantly higher plant height at 30, 60 DAT and at harvest viz. 70.6, 117.4 and 128.6 cm respectively; number of tillers at 30, 60 DAT and at harvest viz. 65.0, 60.3 and 50.4 respectively; leaf area index (LAI) at 60 DAT (3.4); dry matter accumulation (DMA) at 30, 60 DAT and at harvest viz. 9.5, 31.3 and 153.4 q/ha respectively; number of days taken to panicle initiation (65.2); number of days taken for 50 per cent flowering (68.7); effective tillers per meter row length (43.2); panicle length (27.5 cm); panicle weight (6.5 g); number of grains per panicle (195.7); 1000-grain weight (34.7g); grain yield (80.1 q/ha); straw yield (181.2 q/ha); harvest index (34.1%). June 15 transplanting produced significantly higher grain yield which was 1.5 and 6.4% higher than June 25 and July 5 transplanting respectively. PUSA 44 produced significantly higher grain yield which was 27.3 and 17.4% higher than PR 126 and PR 122 respectively. All the interaction effect of date of transplanting and rice cultivars recorded non-significant results.

scholarly journals Adoption of Efficient Varieties, And Nitrogen Management For Improving Agronomic Attributes, And Yield of Winter Wheat

2021 ◽  
Author(s):  
Hafeez Noor ◽  
Sun Min ◽  
Wen Lin ◽  
Zhiqiang Gao
Keyword(s):  
Grain Yield ◽  
Protein Content ◽  
Harvest Index ◽  
Dry Matter ◽  
Wheat Variety ◽  
Water Storage ◽  
Grain Protein Content ◽  
Soil Water Storage ◽  
Dry Matter Accumulation ◽  
1000 Grain Weight

Abstract This study greenhouse experiment aimed to evaluate the biochemical impact of nitrogen (N) fertilization on different wheat cultivars. The experiment included two varieties (YH-618 and YH-20410) and three nitrogen levels, (N0, N210, and N280 Kg ha–1. Our results indicated that wheat variety YH-20410 had the higher nitrogen uptake and efficiency, grain protein content, and yield at higher planting densities and will benefit farmers by forming stronger overall crops. For variety YH-20410, the soil water storage at the wintering stage was significantly highest at N280 kg ha–1, In conclusion, variety YH-20410, wheat higher dry matter accumulation of each organ at maturity stage, and the dry matter accumulation of leaf, stem + leaf sheath. Compared to N0 and N180 Kg ha–1, N210 kg ha–1 significantly increased the N harvest index by 5.0% to 19.4% and N use efficiency by 2.9% to 9.1%, but there was no significant difference in N uptake efficiency. In conclusion, variety YH-20410 was beneficial to improve the harvest index and N productivity of wheat. Variety YH-20410, has also the greater number of spike number, grains per spike and 1000-grain weight, leading to high grain yield. Among nitrogen treatments, N280 Kg ha–1 significantly increased the grain number per spike, 1000-grain weight and yield. Significantly increased grain gluten content, grain protein content and protein yield under of YH-20410 variety. In conclusion, reduced N fertilizer 280 kg ha–1 and variety YH-20410 was beneficial to the improved the leaf area index, plant height, soil water storage, dry matter accumulation, and grain yield.

scholarly journals Responses of Root Characteristic Parameters and Plant Dry Matter Accumulation, Distribution and Transportation to Nitrogen Levels for Spring Maize in Northeast China

Agriculture ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 308
Author(s):  
Yang Yu ◽  
Chunrong Qian ◽  
Wanrong Gu ◽  
Caifeng Li
Keyword(s):  
Surface Area ◽  
Nitrogen Fertilizer ◽  
Root Length ◽  
Dry Matter ◽  
Projection Area ◽  
Dry Matter Accumulation ◽  
Characteristic Parameters ◽  
High Nitrogen ◽  
Nitrogen Levels ◽  
Matter Transport

Improving nitrogen use efficiency is a significant scientific problem to be solved. Two maize hybrids JD27 (Jidan 27) and SD19 (Sidan 19) were selected to study the effects of nitrogen levels on root characteristic parameters and plant dry matter accumulation, distribution and transportation. We set five different nitrogen levels, which were nitrogen deficiency (000N), low nitrogen (075N), medium nitrogen (150N), high nitrogen (225N) and excessive nitrogen (300N). The results showed that the root length and root surface area of JD27 were significantly higher than those of SD19 under 075N. With the increase of nitrogen levels, the root difference among varieties gradually decreased. The root length, projection area, total surface area and total volume reached the maximum values at silking stage. The average root diameter kept stable or decreased slowly with the growth stage. The dry matter accumulation of JD27 was higher than that of SD19 at all growth stages. Increasing the amount of nitrogen fertilizer can promote the transport of dry matter to grain and improve dry matter transport efficiency after anthesis. Under the treatment of medium and high nitrogen fertilizer, maize was easy to obtain a higher yield, but excessive nitrogen fertilizer inhibited the increase of yield. This study provides theoretical and practical guidance for maize production techniques.

EFFECTS OF INCREMENTAL N FERTILIZATION ON GRAIN YIELD AND DRY MATTER ACCUMULATION OF SIX SPRING WHEAT (Triticum aestivum L.) CULTIVARS IN SOUTHERN MANITOBA

1990 ◽  
Vol 70 (1) ◽  
pp. 51-60 ◽  
Author(s):  
D. T. GEHL ◽  
L. D. BAILEY ◽  
C. A. GRANT ◽  
J. M. SADLER
Keyword(s):  
Triticum Aestivum ◽  
Grain Yield ◽  
Spring Wheat ◽  
Dry Matter ◽  
Root Zone ◽  
Temporal Distribution ◽  
Triticum Aestivum L ◽  
N Fertilization ◽  
Yield Response ◽  
Dry Matter Accumulation

A 3-yr study was conducted on three Orthic Black Chernozemic soils to determine the effects of incremental N fertilization on grain yield and dry matter accumulation and distribution of six spring wheat (Triticum aestivum L.) cultivars. Urea (46–0–0) was sidebanded at seeding in 40 kg N ha−1 increments from 0 to 240 kg ha−1 in the first year and from 0 to 200 kg ha−1 in the 2 subsequent years. Nitrogen fertilization increased the grain and straw yields of all cultivars in each experiment. The predominant factor affecting the N response and harvest index of each cultivar was available moisture. At two of the three sites, 91% of the interexperiment variability in mean maximum grain yield was explained by variation in root zone moisture at seeding. Mean maximum total dry matter varied by less than 12% among cultivars, but mean maximum grain yield varied by more than 30%. Three semidwarf cultivars, HY 320, Marshall and Solar, had consistently higher grain yield and grain yield response to N than Glenlea and Katepwa, two standard height cultivars, and Len, a semidwarf. The mean maximum grain yield of HY 320 was the highest of the cultivars on test and those of Katepwa and Len the lowest. Len produced the least straw and total dry matter. The level of N fertilization at maximum grain yield varied among cultivars, sites and years. Marshall and Solar required the highest and Len the lowest N rates to achieve maximum grain yield. The year-to-year variation in rates of N fertilization needed to produce maximum grain yield on a specific soil type revealed the limitations of N fertility recommendations based on "average" amounts and temporal distribution of available moisture.Key words: Wheat (spring), N response, standard height, semidwarf, grain yield

scholarly journals Growth, yield and nutrient content of mungbean (Vigna radiata L.) in response to INM in eastern Uttar Pradesh, India

2018 ◽  
Vol 44 (3) ◽  
pp. 479-482 ◽  
Author(s):  
Yubaraj Dhakal ◽  
RS Meena ◽  
Nirmal De ◽  
SK Verma ◽  
Ajeet Singh
Keyword(s):  
Seed Yield ◽  
Harvest Index ◽  
Dry Matter ◽  
Uttar Pradesh ◽  
Growth Yield ◽  
Nutrient Content ◽  
Dry Matter Accumulation ◽  
Spad Value ◽  
Leaf Chlorophyll ◽  
Eastern Uttar Pradesh

Significant improvement in LAI, number of trifoliate, SPAD value of green leaf chlorophyll, dry matter accumulation, yield, harvest index (%) and nutrient content of mungbean were recorded due to application of 75% RDF + 2.5 t/ha vermicompost (VC) + Rhizobium (Rh)+ phosphorus solublizing bacteria (PSB), followed by 100% RDF + 2.5 t/ha VC and 100% RDF + Rh + PSB. The highest seed yield of mungbean was obtained with the application of 75% RDF + 2.5 t/ha VC + Rh + PSB (12.34 q /ha) followed by 100% RDF + 2.5 t/ha VC (12.05 q /ha) and 100% RDF + Rh+ PSB (11.95 q /ha).

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