Tag: Yield.

Influence of plant growth regulators on yield attributes and induction of dormancy in bunch groundnut (Arachis hypogaea L.)

Akabari VR HTML Full Text PDF XML DOI: https://doi.org/10.21276/AATCCReview.2025.13.04.599 Abstract Seed dormancy plays a crucial role in preventing in situ sprouting of groundnut pods, especially

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Seed dormancy plays a crucial role in preventing in situ sprouting of groundnut pods, especially in non-dormant bunch types grown during the Kharif season. Variety TG-37A are widely cultivated in Gujarat state. Due to changing climatic conditions, varieties like TG-37A are increasingly affected by end-season rains, leading to yield loss and deterioration in seed and oil quality. Therefore, the present study aims to develop effective strategies for inducing seed dormancy through the use of plant growth regulators. A field experiment entitled β€œEffect of plant growth regulators on yield attributes and induction of dormancy in bunch groundnut (Arachis hypogaea L.) was conducted using a Randomized Block Design (RBD) with three replications in the variety TG-37A. The experiment consisted of ten treatments of different plant growth regulators with control. Results revealed that foliar application of all growth regulators improved pod yield, harvest index, sound mature kernels, filled and mature pods per plant, and seed dormancy as compared to control. The highest pod yield (1818.06 kg/ha) and sound mature kernel (SMK) percentage (96.33%) were recorded with foliar application of Cycocel (CCC) at the rate of 10,000 ppm at 90 DAS (T8). Significantly the lowest In situ sprouting or viviparous germination percentage upto 20 days after maturity was also observed in treatment T8 (CCC @ 10,000 ppm at 90 DAS) as compared to control, indicating its superiority for inducing seed dormancy in bunch groundnut. In addition to this, seed dormancy in groundnut showed a positive correlation with total phenol content, with the highest phenol level (3.53 mg g⁻¹ fr. wt.) at 100 DAS recorded under treatment T8, which was statistically at par with T7 (Cycocel @ 5000 ppm at 90 DAS).

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Modeling long-term growth and variability of rapeseed and mustard in lucknow district of Uttar Pradesh: A comparative analysis of linear and nonlinear time series models

Sonu Jain HTML Full Text PDF XML DOI: https://doi.org/10.21276/AATCCReview.2025.13.04.206 Abstract Rapeseed and mustard are vital oilseed crops in Uttar Pradesh, India, contributing to agricultural livelihoods

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Rapeseed and mustard are vital oilseed crops in Uttar Pradesh, India, contributing to agricultural livelihoods and food security. This study analyzes long-term trends and variability in area, production, and yield in Lucknow district from 1999–2000 to 2022–23 using linear and nonlinear time series models. Data on area (hectares), production (tonnes), and yield (tonnes/hectare) were modeled with Linear, Power, Mechanistic Growth, Logistic 3-Parameter (3P), and Gompertz 3P models. The Linear model best described area and production, while the Logistic 3P model outperformed for yield, capturing its sigmoidal growth. Challenges include managing high data variability due to weather and policy fluctuations and ensuring convergence of nonlinear models. Results show modest growth in area (+57.8 ha/year) and production (+133.5 t/year), with yield rising (+0.015 t/ha/year). High variability (coefficient of variation: 25.7% for area, 46.2% for production, 31.4% for yield) and instability indices (19.5%–34.3%) suggest external influences like weather or policy changes. Decomposition analysis revealed that yield improvements drove 60.2% of production growth, particularly post-2012 (73.6%). Sensitivity analysis confirmed model robustness, and residual diagnostics validated fit. Forecasts predict stable yields (0.97 t/ha by 2027) and modest increases in area and production. Compared to Uttar Pradesh’s higher yields (1.0–1.2 t/ha), Lucknow’s lag suggests policy needs for hybrid seeds and irrigation. These findings, supported by transparent data access, inform sustainable agricultural planning. This study contributes reliable forecasting tools for regional agricultural planning, a reproducible methodology via transparent data access and insights into the efficacy of Linear versus Nonlinear models for oilseed crops, advancing sustainable agriculture in resource-constrained regions.

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Effect of long term application of FYM and Vermicompost on soil carbon pool, enzymes and microbial activities in Pearl millet-chickpea cropping sequence after 6th crop cycle

Pearl millet, commonly known as bajra is profoundly drought resistant, highly nutritious, and easy to digest cereal grain. Bajra grains are power-packed with carbohydrates, essential

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The field experiment was carried out on a fixed site at the research farm of Bajra Research Scheme, College of Agriculture, Dhule, Maharashtra, India which was initiated during 2013-2014. The experiment was laid out in randomized block design with eight treatments replicated three times. Treatments for pearl millet composed of T1: Control, T2: 100% recommended dose of fertilizer through inorganic fertilizers, T3: 100 % recommended dose of nitrogen through farm yard manure, T4: 100 % recommended dose of nitrogen through vermicompost, T5: 50 % recommended dose of nitrogen through farm yard manure + 50 % recommended dose of nitrogen-through vermicompost, T6: 5-ton farm yard manure ha-1, T7: 3-ton vermicompost ha-1 and T8: 2.5-ton farm yard manure ha-1 + 1.5-ton vermicompost ha-1). However, treatments for chickpeas are composed of T1: Control, T2: 100% recommended dose of fertilizer through inorganic fertilizers, T3 to T8: residual effect of farm yard manure, and vermicompost alone and in combinations. The experimental soil was alkaline, calcareous, clayey in texture, low in available nitrogen and phosphorus and high in available potassium. The continuous application of the 100 % recommended dose of nitrogen through farm yard manure for 6 years to pearl millet showed improvement in organic carbon fractions, soil enzyme activity, soil microbial population, and pearl millet equivalent yield. This treatment was followed by the application of 50 % recommended dose of nitrogen through farm yard manure + 50 % recommended dose of nitrogen through vermicompost.

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