Harvest index and straw yield of five classes of wheat

An experiment was conducted at the Agronomy Field Laboratory, Bangladesh Agricultural University, Mymensingh from July to December 2004 to evaluate the effect of hill spacing on the performance of BRRI dhan40 and BRRI dhan41 as Transplant aman crop. The experiment consisted of five hill spacings viz., 5cm. 10cm, 15 cm, and 25 cm where row to row spacing of 25 cm was kept constant for all treatments. The experiment was laid out in randomized complete block design with four replications. The 25 cm x 5 cm hill spacing produced the tallest plant, highest total number of tillers/hill, bearing tillers/hill lowest number of non-hearing tillers/hill, grain yield and harvest index, while 25 cm x 5 cm hill spacing produced the highest number of sterile spikelets/panicle, straw yield and biological yield. BRRI dhan41 produced higher grain yield (4.7 t/ha) which was the contribution of higher number of grains/panicle and heavier grain weight. Lower yield (4.51 t/ha) was recorded in BRRI dhan40.Key Words: Varietal performance; T. aman rice; hill density.DOI: 10.3329/bjar.v34i1.5750Bangladesh J. Agril. Res. 34(1) : 33-39, March 2009

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Response of transplanted aman rice varieties to split application of potassium

Research in Agriculture Livestock and Fisheries ◽

10.3329/ralf.v5i3.39577 ◽

2018 ◽

Vol 5 (3) ◽

pp. 313-320

Author(s):

Israt Jahan ◽

Sarder Md Altaf Hossain ◽

Md Anwarul Islam ◽

Joynulalam Talukder

Keyword(s):

Grain Yield ◽

Plant Height ◽

Harvest Index ◽

Experimental Plot ◽

Split Application ◽

Rice Varieties ◽

Straw Yield ◽

Plot Size ◽

Biological Yield ◽

Equal Split

The research was conducted at the Agronomy Field Laboratory, Bangladesh Agricultural University, Mymensingh, to investigate the effect of time of split application of potassium on the yield of three transplanted (T) aman rice varieties. Rice varieties were BRRI dhan39, BRRI dhan40 and BRRI dhan41. Potassium was applied at the rate of 80 kg K ha-1. Experimental plot size was 5m2 (2.5m ×2.0m). Four split application of potassium [K1= Control (No K application), K2= 40 g K plot-1 at 15 DAT (days after transplanting), K3= 20 g K plot-1 at15 DAT+20 g K plot-1 at 30DAT, K4= 10 g K plot-1 at 15 DAT+ 10 g K plot-1 at 25DAT+ 10 g K plot-1 at 30 DAT+ 10 g K plot-1 at 45 DAT] were considered as treatments. From the experiment it was found that split application of potassium had no significant effect on plant height, length of panicle, thousand grains weight. It was evident that two splits application of potassium i.e., 20 g K plot-1 at 15 DAT+20 g K plot-1 at 30 DAT with BRRI dhan41 gave maximum no. of tiller hill-1, effective tiller hill-1, grains panicle-1, grain yield and straw yield, biological yield and harvest index. But varieties differed among themselves in terms of yield contributing characters and yield, and BRRI dhan41 performed the best. Therefore, based on the findings of the present study, it may be concluded that for obtaining higher yield BRRI dhan 41 can be grown following application of potassium at the rate of 80 kg ha-1 in two equal split at 15 and 30 days after transplanting Res. Agric., Livest. Fish.5(3): 313-320, December 2018

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A comparison of the yield response of solin (cv. Linola 947) and flax (cvs. McGregor and Vimy) to application of nitrogen, phosphorus, and Provide (Penicillium bilaji)

Canadian Journal of Plant Science ◽

10.4141/p98-085 ◽

1999 ◽

Vol 79 (4) ◽

pp. 527-533 ◽

Cited By ~ 14

Author(s):

C. A. Grant ◽

J. C. P. Dribnenki ◽

L. D. Bailey

Keyword(s):

Seed Yield ◽

Harvest Index ◽

Field Studies ◽

Yield Response ◽

Straw Yield ◽

Linum Usitatissimum L ◽

Fertilizer Recommendations ◽

P Fertilizer ◽

Nitrogen Phosphorus ◽

Penicillium Bilaji

Field studies were conducted at three locations over three years with Linum usitatissimum L. to determine whether the solin cultivar Linola 947 and the traditional oilseed flax cultivars McGregor and Vimy, differed in seed yield, straw yield and harvest index response to N and P fertilizer and the phosphorus-solubilizing fungus, Penicillium bilaji, marketed as "Provide". While cultivars differed in seed yield, straw yield and harvest index, the relative performance of the cultivars varied with site and year and did not relate to whether the cultivar was solin or traditional oilseed flax. The degree and pattern of response of straw yield and harvest index to N and/or P fertilization varied with year and location. Where significant differences occurred due to P or Provide management, seed yield and harvest index were lower and straw yield higher with application of Provide than with application of P fertilizer, indicating that Provide was less effective than P in enhancing seed yield of flax. Solin did not generally differ from traditional oilseed flax in the response of seed yield, straw yield and harvest index to fertilizer applications. Response of seed and straw yield to N and response of harvest index to P each differed among cultivars in only one-site year, while an N-by-P-by-cultivar interaction occurred in only one site-year for seed and straw yield. Considering the limited occurrence of cultivar-by-fertilizer interactions, fertilizer recommendations produced for traditional flax cultivars should also be applicable to solin cultivars. Key words: Seed yield, harvest index, cultivar

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Evaluation of Rice Straw Yield, Fibre Composition and Collection Under Mediterranean Conditions

Acta Technologica Agriculturae ◽

10.2478/ata-2019-0008 ◽

2019 ◽

Vol 22 (2) ◽

pp. 43-47 ◽

Cited By ~ 1

Author(s):

Javier Matías ◽

Verónica Cruz ◽

Antonio García ◽

Diana González

Keyword(s):

Rice Straw ◽

Harvest Index ◽

Biomass Yield ◽

Rice Variety ◽

Biomass Partitioning ◽

Rice Varieties ◽

Straw Yield ◽

Fibre Composition ◽

Detailed Assessment ◽

Mediterranean Conditions

Abstract Rice straw remains almost unutilised in the majority of cases and is usually burned. Data on rice residue production under European conditions are extremely limited. A detailed assessment of rice biomass yield, partitioning and straw collection was carried out in Spain. Eleven commercial rice varieties were evaluated in 2015, and two baling trials were performed in 2014 and 2015. The average straw yield was 9.7 t·ha−1. Straw yield, biomass partitioning indices and fibre composition varied significantly according to rice variety. Straw to grain ratio and harvest index were 1.00 and 0.50 on average for rough grain, and 1.25 and 0.41 for husked grain. Biomass partitioning indices significantly correlated with grain yield. Mean content of cellulose, hemicellulose, lignin and ash of rice straw was 32.5%, 19.8%, 6.5% and 13.7%, respectively. Straw amount of less than 3.0 t·ha−1 can be collected during the baling trials. Rice straw could represent an eco-friendly source of lignocellulosic biomass in Europe, however, in order to achieve this, baling machine improvements and special crop management should be carried out.

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Effects of age of seedling and nitrogen rates in the nursery bed on growth, yield and yield components of BRII dhan52 under submerged condition

Research in Agriculture Livestock and Fisheries ◽

10.3329/ralf.v2i2.25009 ◽

2015 ◽

Vol 2 (2) ◽

pp. 261-269

Author(s):

Shompa Rani Debnath ◽

Md Sultan Uddin Bhuiya ◽

M Rafiqul Islam ◽

Md Mahboob Karim ◽

ABM Shafiul Alam

Keyword(s):

Grain Yield ◽

Plant Height ◽

Harvest Index ◽

Growth Yield ◽

Root Weight ◽

Panicle Length ◽

Nitrogen Rate ◽

Straw Yield ◽

Shoot Weight ◽

Nitrogen Rates

The experiment was conducted at the Agronomy Field Laboratory, Bangladesh Agricultural University, Mymensingh during July to December 2013 in the aman season to investigate the effect of age of seedling and nitrogen rates in the nursery bed on growth, yield and yield components of BRRI dhan52. The experiment comprised of three ages of seedlings viz., 30, 35 and 40 day old and four nitrogen rate N1-N@50 kg ha-1, N2-N@75 kg ha-1, N3-N@100 kg ha-1, N4-N@125 kg ha-1. The experiment was laid out in a split plot design with three replications. Age of seedling showed significant differences for shoot weight, survivor, no. grains panicle-1, panicle length, grain yield and straw yield. The highest root weight (0.072 gm-2), plant height (108 cm), total tillers hill-1 (8.22), effective tillers hill-1 (7.03), non-effective tillers hill-1 (1.19), survivor (95.1%), grains panicle-1 (106.2), grain yield (5.57 t ha-1), straw yield (6.26 t ha-1) and harvest index (0.47%) were found by transplanting 40 day old seedlings. The highest shoot weight (0.53 gm-2), 1000 grain wt. (25.3g) was found by transplanting 35 day old seedlings and 30 day old seedlings produced highest sterile spikelets (28.9) and panicle length (23.8 cm). Nitrogen rate in the nursery showed significant differences for shoot weight, root weight, survivor, plant height, total tillers hill-1, effective tillers hill-1, non-effective tillers hill-1, panicle length, grains panicle-1, grain yield and straw yield. Application of 50 kg N ha-1 gave higher plant height (108 cm) and harvest index (0.47%). On the other hand, application of 75 kg N ha-1 produced highest noneffective tillers hill-1 (1.0), grains panicle-1 (100.7), 1000 grain weight (25.3 g) and harvest index (0.47%). Application of 100 kg N ha-1 gave highest total tillers hill-1 (7.85), effective tillers hill-1 (6.85), noneffective tillers hill-1 (1.0), survivor (90.5%) and grain yield (5.01 t ha-1). Application of 125 kg N ha-1 gave highest panicle length (23.75 cm), grains panicle-1 (100.7), noneffective tillers hill-1 (1.0) and sterile spikelets (30.1). Forty day old seedlings grown with 100 kg N ha-1 at nursery found to be better in respect of grain yield. The result of the experiment also showed that aged seedlings regenerated quickly after desubmerge of water.Res. Agric., Livest. Fish.2(2): 261-269, August 2015

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Effect of variety and planting density on weed dynamics and yield performance of transplant Aman rice

Journal of the Bangladesh Agricultural University ◽

10.3329/jbau.v15i2.35058 ◽

2017 ◽

Vol 15 (2) ◽

pp. 167-173

Author(s):

MU Salma ◽

MA Salam ◽

K Hossen ◽

MRJ Mou

Keyword(s):

Grain Yield ◽

Harvest Index ◽

Dry Weight ◽

Planting Density ◽

Panicle Length ◽

Yield Performance ◽

Straw Yield ◽

Weed Density ◽

Weed Dynamics ◽

1000 Grain Weight

The experiment was conducted at the Agronomy Field Laboratory, Bangladesh Agricultural University, Mymensingh during Aman season from June to November 2016 to find out the effect of variety and planting density on weed dynamics and yield performance of transplant Aman rice. The experiment consisted of four varieties viz. Binadhan-7, BR25, BRRI dhan56 and BRRI dhan62 and four planting density viz. 25 cm × 15 cm, 25 cm × 10 cm, 20 cm × 15 cm and 20 cm × 10 cm. The experiment was laid out in a randomized complete block design with three replications. Variety exerted significant effect on weed density and dry weight at different days after transplanting (DAT). The lowest weed density and dry weight were observed in BR25 and the highest ones were observed in Binadhan-7. Weed population was not significantly affected by planting density while weed dry weight was significantly affected and closer spacing produce the lowest weed dry weight. Yield and yield contributing characters of transplant Aman rice were significantly influenced by variety and planting density. BR25 showed produce the highest plant height (157.9 cm), panicle length (24.94 cm), grains panicle(103.10), sterile spikelets panicle−1 (29.36), grain yield (4.30 t ha−1) and straw yield (8.99 t ha−1) while BRRI dhan62 the highest number of total tillers hill−1 (14.75), effective tillers hill−1 (11.62), and non-effective tillers hill−1 (3.10). The highest 1000-grain weight (25.21g) was found in the variety Binadhan-7and the highest harvest index (53.50%) was obtained from BRRI dhan56. In case of planting density, the highest value of plant height (124.27 cm), total tillers hill−1 (13.53), effective tillers hill−1 (11.20), non-effective tillers hill−1 (2.32), panicle length (22.59 cm), grain yield (4.17 t ha−1) and straw yield (5.75 t ha−1) were obtained from 25 cm × 15 cm spacing. On the other hand, the highest number of grains panicle−1 (84.23) and harvest index (45.18 %) were obtained from 25 cm × 10 cm spacing, heaviest 1000-grain weight (23.83 g) from 20 cm × 15 cm spacing. Experimental results indicated that BR25 grown under 25 cm × 15 cm planting density appeared to be the best in order to get maximum grain yield as well as reducing weed infestation.J. Bangladesh Agril. Univ. 15(2): 167-173, December 2017

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Response of Cowpea [Vigna unguiculata (L.) Walp] Genotypes under Residual Moisture Condition in Rice-Fallow Area of Goa State, India

Legume Research - An International Journal ◽

10.18805/lr-4228 ◽

2020 ◽

Author(s):

K. K. Manohara ◽

Shaiesh . .Morajkar ◽

Yogini Shanbhag

Keyword(s):

Plant Height ◽

Seed Yield ◽

Coefficient Of Variation ◽

Harvest Index ◽

Residual Moisture ◽

Dual Purpose ◽

Moisture Condition ◽

Straw Yield ◽

Positive Direct ◽

High Seed Yield

A field experiment was conducted during rabi season 2018-19 to study the response of 23 cowpea genotypes grown under residual moisture condition in rice-fallow situation of Goa state. Analysis of variance revealed significant differences among the genotypes for all the eleven characters, justifying the selection of genotypes for the study. The estimate of Phenotypic Coefficient of Variation (PCV) and Genotypic Coefficient of Variation (GCV) were high (>20%) for seed yield, straw yield, pods per plant and 100 seed weight. Heritability and genetic advance as per cent mean estimates were high for most of the characters except for days to 50 per cent flowering, days to maturity and plant height. Characters plant height, pods per plant, straw yield and harvest index showed positive and significant association with seed yield. Path analysis based on seed yield, as a dependent variable, revealed that straw yield and harvest index had the highest positive direct effect on seed yield. Therefore, maximum importance should be given to these traits during the selection for achieving the higher seed yield under rice-fallow situation. Three promising genotypes identified from this study viz., PCP-1131, SKAU-C- 407 and RC 101 would serve as dual-purpose cowpea under rice-fallow areas due to their high seed yield and straw yield

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The Influence of nano-TiO2 and Nano-Silica Particles Effects on Yield and Morphological Traits of Sunflower

Helia ◽

10.1515/helia-2018-0010 ◽

2018 ◽

Vol 41 (69) ◽

pp. 213-225

Author(s):

Naser Sabaghnia ◽

Abdollah Javanmard ◽

Mohsen Janmohammadi ◽

Mojtaba Nouraein

Keyword(s):

Ascorbic Acid ◽

Titanium Dioxide ◽

Seed Yield ◽

Harvest Index ◽

Kernel Weight ◽

Nano Silica ◽

Straw Yield ◽

Nano Titanium Dioxide ◽

Number Of Seeds ◽

High Seed Yield

AbstractPresent study is performed to evaluate the effects of foliar application of salicylic acid, glycine betaine, ascorbic acid, nano-silica and nano titanium dioxide on yield and yield component of sunflower. Chlorophyll content, leaf length, leaf width, days to 50 % flowering, day to maturity, plant height, husk percentage, number of seeds per head, head number per plant, percentage of empty achenes, 1000-seed weight, kernel weight, grain length, straw yield, harvest index, grain yield and oil percent were measured. Results showed that the first two principal components accounted 49 % and 19 %, respectively of sums of squares of the TT interaction and were used to create a two-dimensional treatment by trait (TT) biplot. The vertex treatments in polygon of TT biplot were ascorbic acid, glycine betaine, nano-TiO2 and control which Nano-Ti2 treatment indicated high performance in chlorophyll content, day to maturity, number of seeds per head, head number per plant, kernel weight, grain length, straw yield, harvest index, grain yield and oil percent. The identification of ideal treatment, the treatment that is most favorable treatment among all treatments, showed that the nano-TiO2 might be used in selecting superior traits and it can be considered as the candidate treatment. Treatments suitable for obtaining of high seed yield were identified in the vector-view function of TT biplot and displayed nano-silica and nano titanium dioxide as the best treatments suitable for obtaining of high seed yield. In short, nano-fertilizer could increase crop yields and improve the fertilizer efficiency.

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EFFECT OF SEEDING RATE ON GRAIN YIELD, STRAW YIELD AND HARVEST INDEX OF EIGHT SPRING WHEAT CULTIVARS

Canadian Journal of Plant Science ◽

10.4141/cjps82-045 ◽

1982 ◽

Vol 62 (2) ◽

pp. 285-291 ◽

Cited By ~ 10

Author(s):

R. J. BAKER

Keyword(s):

Triticum Aestivum ◽

Grain Yield ◽

Spring Wheat ◽

Linear Response ◽

Harvest Index ◽

Triticum Aestivum L ◽

Wheat Cultivars ◽

Seeding Rate ◽

Straw Yield ◽

Rate Interaction

Eight cultivars of spring wheat, Triticum aestivum L., were evaluated at seeding rates of 110, 270 and 430 seeds/m2 in a total of nine experiments spanning three locations, two dates of seeding and 2 yr. Grain yield exhibited a significant cultivar × experiment × linear response to seeding rate interaction. Grain yield of Pitic 62 showed a significant decrease with increased seeding rate in one experiment while giving the greatest increase in another. Over all experiments, the highest seeding rate gave the highest grain yield. For straw yield, Chester showed the greatest response to seed rate, Canuck the least. With the exception of Canuck, which showed a significant increase in harvest index with increased seeding rate, harvest index tended to be greater at the intermediate seeding rate.

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

Journal of the Institute of Agriculture and Animal Science ◽

10.3126/jiaas.v33i0.20683 ◽

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

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