Physiological Growth Parameters of Rabi Rice (Oryza sativa L.) under Alternate Wetting and Drying Irrigation with Varied Nitrogen Levels

Sridhar, K.; Srinivas, A.; Kumar, Krishna; Ramprakash, T.; Rao, P. Raghuveer

doi:10.20546/ijcmas.2019.801.001

Cited by 7 publications

(4 citation statements)

References 12 publications

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“…Nutrients and growth enhancers plays a key role in chlorophyll synthesis and helps in transfer of solar energy through photosynthesis in leaves. Thus the application of nutrients influences the leaf soluble protein content which leads to enhancement of leaf area in rice [19]. These results are in line with the results reported by Pillai et al [20] and Goutam et al [21].…”

Section: Leaf Areasupporting

confidence: 90%

Enhancing Morpho-Physiological and Yield Potential of Rice using Nutrients and Plant Growth Regulators

Preethi,

Ravichandran,

Prasad

et al. 2023

IJPSS

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Rice (Oryza sativa L.) is one of the major cereals and the staple food crops which is cultivated all over the world. In order to meet the growing demand of population, it is important to increase the productivity of crop. The productivity of crop is influenced by nutrients and growth hormones. With this background, a field experiment was conducted during the month of January-May 2023 at wetland farms, Tamil Nadu Agricultural University, Coimbatore, Tamil Nadu, India to evaluate the effect of different foliar nutrients and growth regulators on growth, physiology, biochemical and yield attributes in rice. The experimental layout was Factorial Randomized Block Design (FRBD) with two varieties (CO55 and ADT 57). The treatments consisted of foliar spray of T1- Control (water spray), T2- Nutrio-hormonal consortia 1, T3- Nutrio-hormonal consortia 2, T4- Rice booster 1 and T5- Rice booster 2 given at the booting stage and 15 days after the first spray. Among the treatments, T5- Rice booster 2 significantly improved leaf area (1813.99 cm2, 2059.78 cm2), leaf area index (4.53, 5.15), crop growth rate (32.07 g/m2/day, 37.89 g/m2/day), chlorophyll index (37.60, 41.73), photosynthetic rate (27.15 µmol CO2 m-2 s-1, 30.04 µmol CO2 m-2 s-1), Transpiration rate (11.83 mmol H2O m-1 s-1, 14.20 mmol H2O m-1 s-1 ), soluble protein content (16.23 mg/g, 17.30 mg/g), nitrate reductase activity (98.15 µg of NO2/g/h, 112.47 µg of NO2/g/h) in ADT- 57 variety at both sprays, respectively. Foliar application of rice booster 2 (T5) resulted in higher number of productive tillers (23), number of spikelets per panicle (165.5), spikelet fertility (95.48%), 1000 grain weight (17.35g), grain yield/ plant (31.40g), grain yield/hectare (6694.32 Kg/ha), harvest index (45.44%) in ADT 57 and resulted in 15% yield increment over the control. Thus the present study concluded that the foliar application of rice booster 2 (T5) significantly improved the growth, physiology, biochemical and yield attributes in rice variety ADT 57.

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Section: Leaf Areasupporting

confidence: 90%

Enhancing Morpho-Physiological and Yield Potential of Rice using Nutrients and Plant Growth Regulators

Preethi,

Ravichandran,

Prasad

et al. 2023

IJPSS

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“…Among the herbicides, the value of LAI under treatment with bispyribac sodium at 25 g/ha was observed to be significantly higher (3.60) and at par with the plot treated with fenoxaprop-p-ethyl + penoxsulam at 60+26.7 g/ha and cyhalofop + penoxsulam at 135+26.7 g/ha as compared to other treatments. The weed-free environment provides more chance for leaves to expand and cover the area by their canopy in an appreciable manner (Sridhar et al, 2019).…”

Section: Growth Parametersmentioning

confidence: 99%

Assessment of different herbicides for effective weed management in direct seeded rice technology

Verma,

Bhan,

Jha

et al. 2023

EEC

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Rice is one of the most important cereal crops grown worldwide, feeding 60% of the world. Direct-seeded rice replaces puddled transplanted rice due to an increasing water crisis and a labour shortage among farmers in many Asian regions. However, weeds pose a significant obstacle to the growth of direct-seeded rice. In this context, a field experiment was conducted at the research farm of JNKVV, Jabalpur, India (23º 90' N, 79º 58' E, and 411 m above MSL) under natural weed infestations during the kharif season of 2019. The objective was to evaluate the herbicidal effects on diversified weed flora, growth parameters, and rice yield to optimize herbicide doses for sustainable rice production. Two agro ecosystems, including rainfed and irrigated and eight weed control treatments, including herbicidal applications, hand weeding and weedy check, were laid out in a split-plot design with three replications. Among the herbicidal applications, bispyribac sodium at 25 g/ha effectively reduced total weed density (3.41/m 2 ) and dry weight (4.13 g/m 2 ) over control at 90 days after sowing and as a consequence, yielded a maximum (2768 kg/ha). Based on overall performance, bispyribac sodium at 25 g/ha may be considered the best herbicidal treatment for effective weed control and produced the most significant values for growth parameters, yield parameters and grain yield in direct-seeded rice.

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“…The regression for SPSS model is Y = 15.266 + (0.292 x Z21 of prediction year) + (0.066 x time) Here, Z21 is the sum product of minimum temperature. The yield obtained in treatment 9 with NDR-359 + Vermicompost (5 t/ha) + Panchagavya 3% (5.6 t/ha) showed 44.62% increase over the predicted yield through SPSS model (2.88 t/ha) [19][20][21][22][23][24][25][26][27][28].…”

Section: Yield Validation Using Spss Modelmentioning

confidence: 99%

Impact of Organic Nutrient Sources on Growth and Yield of Rice Varieties (Oryza sativa L.) and Yield Validation Using SPSS Model

Ganesh¹,

Mehera²,

Kumar³

2023

IJECC

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A field experiment was conducted during Kharif 2022 at Crop Research Farm, Department of Agronomy, SHUATS, Prayagraj (U.P) to determine the “Impact of organic nutrient sources on growth and yield of rice varities (Oryza sativa L.) and Yield Validation Using SPSS Model”. The experiment was laid out in Randomized Block Design comparising of 9 treatment which include 3 varieties RNR-15048,BPT-5204 AND NDR-359, 4 organic manures, Vermicompost 10(t/ha) and Panchagavya 6%+ Vermicompost 5(t/ha)+ Panchagavya 3%. Whose effect is observed in varieties rice. The treatmentsconsisted of organic nutrient sources and rice varities. [Panchagavya 6%+ Vermicompost 10t/ha, Panchagavya 3%+Vermicompost 5t/ha] and the rice varities [RNR-15048, BPT- 5204, NDR-359]. Whose effect is observed in paddy. The results observed that the treatment with application of NDR-359 + vermicompost 5t/ha + panchagavya 3% recorded higher plant height, number of tillers/hill, plant dry weight(g), CGR,RGR and yield parameter number of panicles/hill, number of grains/panicles, number of grains, test weight, grain yield, straw yield and harvest index. Treatment 9 has shown 44.62% increase over predicted yield whereas there was 28.89% increase in treatment 8 over predicted yield through SPSS model. From the basis of one year experimentation, it is concluded that Panchagavya 3% + Vermicompost 5(t/ha) was found more productive for the variety NDR-359.

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Physiological Growth Parameters of Rabi Rice (Oryza sativa L.) under Alternate Wetting and Drying Irrigation with Varied Nitrogen Levels

Cited by 7 publications

References 12 publications

Enhancing Morpho-Physiological and Yield Potential of Rice using Nutrients and Plant Growth Regulators

Enhancing Morpho-Physiological and Yield Potential of Rice using Nutrients and Plant Growth Regulators

Assessment of different herbicides for effective weed management in direct seeded rice technology

Impact of Organic Nutrient Sources on Growth and Yield of Rice Varieties (Oryza sativa L.) and Yield Validation Using SPSS Model

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