Contribution of water and radiation to growth and yield of pearl millet in Deccan plateau - A case study

In this study the agrometeorological data for the period from 1991 to 1997 have been used to study evapotranspiration demand and crop characteristics of pearl millet at Solapur. Crop coefficients, water use efficiency and radiation use efficiency have been worked out and discussed. This has been done for two varieties of the crop viz., ICTP-8203 and Shraddha. The study revealed that pearl millet crop consumed maximum amount of water during earhead emergence phase, followed by flowering phase. During earhead emergence and flowering phase together, ICTP-8203 variety used nearly 50% of total water used while shraddha consumed about 60%. The highest values of crop coefficient are seen during earhead emergence phase for both the varieties. Maximum photosynthetically active radiation is availed by the crop during its vegetative phase. Radiation use efficiency is more for ICTP-8203 variety than Shraddha variety.

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Radiation use efficiency of pearl millet in the Sahelian zone

Agricultural and Forest Meteorology ◽

10.1016/0168-1923(91)90106-z ◽

1991 ◽

Vol 56 (1-2) ◽

pp. 93-110 ◽

Cited By ~ 32

Author(s):

A. Begue ◽

J.F. Desprat ◽

J. Imbernon ◽

F. Baret

Keyword(s):

Pearl Millet ◽

Radiation Use Efficiency ◽

Use Efficiency ◽

Radiation Use ◽

Sahelian Zone

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EFISIENSI PENGGUNAAN RADIASI SURYA DAN SEBAGAI DASAR DALAM MODEL JARAK PAGAR(RADIATION USE EFFICIENCY AS BASIS THE CROPS MODELING OF JATROPHA)

Agromet ◽

10.29244/j.agromet.22.2.108-117 ◽

2008 ◽

Vol 22 (2) ◽

pp. 108

Author(s):

Gusti Rusmayadi ◽

. Handoko ◽

Yonny Koesmaryono ◽

Didiek Hadjar Goenadi

Keyword(s):

Nitrogen Fertilizer ◽

Plant Density ◽

Crop Growth ◽

Radiation Use Efficiency ◽

Growth And Yield ◽

Area Index ◽

Rainfall Condition ◽

Use Efficiency ◽

Four Levels ◽

Radiation Use

Plant growth interpretation in term of accumulated intercepted solar radiation and the radiation use efficiency (RUE) was used to study the growth and analysis of Jatropha (Jatropha curcas L.). A number of crop growth simulation models have been developed using the RUE concept to predict crop growth and yield in various environments. These models generally calculate daily biomass production as the product of the quantity of radiation intercepted and RUE. This research was carried out to quantify the RUE, biomass and leaf area index on Jatropha under rainfall condition, four levels of nitrogen fertilizer (N) and three population densities (P) planted twice. The experiments used a systematic Nelder fan design with 9 spokes and 4 – 5 rings were conducted at SEAMEO-BIOTROP field experiment in 2007. Data from the first experiment were used for parameterization and calibration and the second experiment data for model validation. Values of RUE were determined by nitrogen fertilizer and plant density. Based on parameterization, we found that RUE for prediction above ground biomass accumulation of Jatropha were 0.94 (r=0.83) g MJ-1 to 1.3 (r=0.75) g MJ-1. Validation between model prediction and field experimental data showed that model can simulate crop growth and development of Jatropha.

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Growth and yield response of chickpea to Rhizobium inoculation: productivity in relation to interception of radiation

Legume Research - An International Journal ◽

10.18805/lr.v38i6.6733 ◽

2015 ◽

Vol 38 (6) ◽

Author(s):

John B. O. Ogola

Keyword(s):

Grain Yield ◽

Nitrogen Deficiency ◽

Radiation Use Efficiency ◽

Growth And Yield ◽

Yield Response ◽

Total Radiation ◽

Rhizobium Inoculation ◽

Use Efficiency ◽

Radiation Use ◽

Crop Biomass

Crop productivity may be increased by manipulating management practices that enhance resource capture and utilisation during yield formation. This study aimed at assessing the effect of Rhizobium inoculation on growth, yield and radiation use of two chickpea cultivars at Thohoyandou, South Africa in winter 2011 and 2012. Nodulation was determined at flowering, crop biomass and grain yield were determined at harvest maturity, intercepted total radiation was determined by measuring photosynthetically active radiation above and below the crop canopy at 7-days intervals using an AccuPAR ceptometer, and radiation use efficiency was calculated as ratio of yield to intercepted total radiation. Number and weight of nodules per plant were greater with inoculation compared with the control. There were no significant differences in crop biomass, grain yield, harvest index, intercepted total radiation and radiation use efficiency between Rhizobium inoculation and the non-inoculated control. The low yield and non-significant effect of Rhizobium inoculation suggest that (i) the productivity of chickpea was probably constrained by factors other than nitrogen deficiency; or (ii) there was no difference in nitrogen fixation between the inoculated and non-inoculated treatments. However, further field trials should be conducted, over several seasons, before any definite conclusions can be drawn.

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Bean–soybean succession under full sun and in agroforestry systems: Impacts on radiation use efficiency, growth and yield

Journal of Agronomy and Crop Science ◽

10.1111/jac.12450 ◽

2020 ◽

Author(s):

Jaqueline Sgarbossa ◽

Elvis Felipe Elli ◽

Felipe Schwerz ◽

Claiton Nardini ◽

Fábio Miguel Knapp ◽

...

Keyword(s):

Agroforestry Systems ◽

Radiation Use Efficiency ◽

Growth And Yield ◽

Use Efficiency ◽

Radiation Use

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RADIATION USE EFFICIENCY, ABOVE GROUND BIOMASS ACCUMULATION, CANOPY DEVELOPMENT, LEAF AREA-LIGHT INTERCEPTION PROFILES AND RADIATION INTERCEPTION OF SUNFLOWER (Helianthus annuus L.) AS INFLUENCED BY IRRIGATION REGIMEN / INFLUENCIA DEL RÉGIMEN DE IRRIGACIÓN SOBRE LA EFICACIA DEL USO DE LA RADIACIÓN, LA ACUMULACIÓN DE BIOMASA, EL DESAROROLLO DEL CANOPEO, EL ÁREA DE LA HOJA Y LOS PERFILES DE INTERCEPCIÓN DE LUZ Y DE RADIACIÓN EN GIRASOL (Helianthus annuus L.) / EFFICACITÉ DE L’UTILISATION DES RADIATIONS SOLAIRES, ACCUMULATION DE LA BIOMASSE DANS LA PARTIE AÉRIENNE, DÉVELOPPEMENT DE L’OMBRELLE, PROFILS D’INTERCEPTION DE LA LUMIÈRE PAR LA FEUILLE ET INTERCEPTION DES RADIATIONS SOLAIRES CHEZ LE TOURNESOL (Helianthus annuus L.) SOUS L’INFLUENCE D’UN RÉGIME D’IRRIGATION

Helia ◽

10.1515/helia.2001.24.35.101 ◽

2001 ◽

Vol 24 (35) ◽

pp. 101-110 ◽

Cited By ~ 1

Author(s):

S. Sridhara ◽

T.G. Prasad

Keyword(s):

Helianthus Annuus ◽

Biomass Accumulation ◽

Light Interception ◽

Radiation Use Efficiency ◽

Leaf Nitrogen Content ◽

Radiation Interception ◽

Canopy Development ◽

Helianthus Annuus L ◽

Use Efficiency ◽

Radiation Use

SUMMARYA field experiment was conducted at Gandhi Krishi Vignana Kendra, University of Agricultural Sciences, Bangalore to study the effect of irrigation regimens on the biomass accumulation, canopy development, light interception and radiation use efficiency of sunflower. The treatments includes irrigating the plants at 0.4, 0.6, 0.8 and 1.0 cumulative pan evaporation. The results indicated that the aboveground biomass, canopy development, radiation interception and radiation use efficiency were influenced favorably by the irrigation regimens. Irrespective of the irrigation regimen, the radiation use efficiency of sunflower increased from 15 DAS to 75 DAS and then tended to decline. The decrease in RUE after anthesis is coupled with decrease in leaf nitrogen content. In general the RUE of sunflower ranged from 0.49 g MJ-1 to 1.84 g MJ-1 at different growth stages. The light transmission within the canopy increased exponentially with plant height and the canopy extension coefficient is found to be 0.8.

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Intercepted Photosynthetically Active Radiation (PAR) and Spatial and Temporal Distribution of Transmitted PAR under High-Density and Super High-Density Olive Orchards

Agriculture ◽

10.3390/agriculture11040351 ◽

2021 ◽

Vol 11 (4) ◽

pp. 351

Author(s):

Adolfo Rosati ◽

Damiano Marchionni ◽

Dario Mantovani ◽

Luigi Ponti ◽

Franco Famiani

Keyword(s):

Spatial Variability ◽

Photosynthetically Active Radiation ◽

Temporal Distribution ◽

High Density ◽

Radiation Use Efficiency ◽

Spatial And Temporal Distribution ◽

Active Radiation ◽

Use Efficiency ◽

And Performance ◽

Radiation Use

We quantified the photosynthetically active radiation (PAR) interception in a high-density (HD) and a super high-density (SHD) or hedgerow olive system, by measuring the PAR transmitted under the canopy along transects at increasing distance from the tree rows. Transmitted PAR was measured every minute, then cumulated over the day and the season. The frequencies of the different PAR levels occurring during the day were calculated. SHD intercepted significantly but slightly less overall PAR than HD (0.57 ± 0.002 vs. 0.62 ± 0.03 of the PAR incident above the canopy) but had a much greater spatial variability of transmitted PAR (0.21 under the tree row, up to 0.59 in the alley center), compared to HD (range: 0.34–0.43). This corresponded to greater variability in the frequencies of daily PAR values, with the more shaded positions receiving greater frequencies of low PAR values. The much lower PAR level under the tree row in SHD, compared to any position in HD, implies greater self-shading in lower-canopy layers, despite similar overall interception. Therefore, knowing overall PAR interception does not allow an understanding of differences in PAR distribution on the ground and within the canopy and their possible effects on canopy radiation use efficiency (RUE) and performance, between different architectural systems.

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Relationships among light distribution, radiation use efficiency and land equivalent ratio in maize-soybean strip intercropping

Field Crops Research ◽

10.1016/j.fcr.2018.05.010 ◽

2018 ◽

Vol 224 ◽

pp. 91-101 ◽

Cited By ~ 36

Author(s):

Xin Liu ◽

Tanzeelur Rahman ◽

Chun Song ◽

Feng Yang ◽

Benying Su ◽

...

Keyword(s):

Light Distribution ◽

Radiation Use Efficiency ◽

Land Equivalent Ratio ◽

Equivalent Ratio ◽

Use Efficiency ◽

Strip Intercropping ◽

Radiation Use

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SEED-ORIENTED PLANTING IMPROVES LIGHT INTERCEPTION, RADIATION USE EFFICIENCY AND GRAIN YIELD OF MAIZE (Zea mays L.)

Experimental Agriculture ◽

10.1017/s0014479716000326 ◽

2016 ◽

Vol 53 (2) ◽

pp. 210-225 ◽

Cited By ~ 5

Author(s):

GUILHERME M. TORRES ◽

ADRIAN KOLLER ◽

RANDY TAYLOR ◽

WILLIAM R. RAUN

Keyword(s):

Grain Yield ◽

Canopy Structure ◽

Maize Yield ◽

Light Interception ◽

Plant Population ◽

Radiation Use Efficiency ◽

Seed Placement ◽

Use Efficiency ◽

The Difference ◽

Radiation Use

SUMMARYSeed-oriented planting provides a manner to influence canopy structure. The purpose of this research was to improve maize light interception using seed-oriented planting to manipulate leaf azimuth across the row thereby minimizing leaf overlap. To achieve leaf azimuths oriented preferentially across the row, seeds were planted: (i) upright with caryopsis pointed down, parallel to the row (upright); and (ii) laying flat, embryo up, perpendicular to the row (flat). These treatments were compared to conventionally planted seeds with resulting random leaf azimuth distribution. Seed orientation effects were contrasted with three levels of plant population and two levels of hybrid specific canopy structures. Increased plant population resulted in greater light interception but yield tended to decrease as plant population increased. The planophile hybrid produced consistently greater yields than the erectophile hybrid. The difference between planophile and erectophile hybrids ranged from 283 to 903 kg ha−1. Overall, mean grain yield for upright and flat seed placement increased by 351 and 463 kg ha−1 compared to random seed placement. Greater cumulative intercepted photosynthetically active radiation (CIPAR) was found for oriented seeds rather than random-oriented seeds. At physiological maturity upright, flat and random-oriented seeds intercepted 555, 525 and 521 MJ m−2 of PAR, respectively. Maize yield responded positively to improved light interception and better radiation use efficiency. Under irrigated conditions, precision planting of maize increased yield by 9 to 14% compared to random-oriented seeds.

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