Evaluation of seedling age and nutrient sources on phenology, yield and agrometeorological indices for sweet corn (Zea mays saccharata L.)

Jan, Bisma; Bhat, M. A.; Bhat, Tauseef A.; Yaqoob, Munazah; Nazir, Aijaz; Mir, Amir H.; Wani, Fehim Jeelani; Singh, Jitendra; Kumar, Rajesh; Gašparovič, Kristína; He, Xiaolan; Nasif, Omaima; Zuan, Ali Tan Kee

doi:10.1016/j.sjbs.2021.10.010

Cited by 8 publications

(6 citation statements)

References 9 publications

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“…In the case of the different landraces of sweet corn, late silking (65.3 days) was noted in the Kunarh landrace, followed by Mingora (64.3 days), while early silking (63.2 days) was recorded in the Kashmir landrace of sweet corn. Our results align with those of Jan et al (2022), who reported that sweet corn plants took longer without any seed treatment to reach the silking stage. Also, seed priming with hydro or halo treatments may have stimulated early development and hastened the silking process in sweet corn (El-Sanatawy et al, 2019).…”

Section: Days To Emergencesupporting

confidence: 92%

Impact of Pre-Sowing Seed Treatments on Sweet Corn Landraces under Moringa leaf extract

Khan,

Salman,

Kalim

et al. 2023

ANST

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A field trial was conducted during the summer of 2021 at the Agronomy Research Farm, The University of Agriculture Peshawar, to investigate the impact of seed priming with different concentrations of moringa leaf extract on sweet corn landraces. The experiment used a randomized complete block design with three replications to assess various phenological, growth, and yield parameters. Results showed that seed priming with a 10% moringa leaf extract solution significantly influenced sweet corn phenology. The primed seeds exhibited earlier emergence (7.5 days), tasseling (55.9 days), silking (62.6 days), and physiological maturity (88.3 days) compared to the unprimed seeds (emergence: 9.2 days, tasseling: 59.4 days, silking: 66.5 days, physiological maturity: 90.9 days). Furthermore, the 10% moringa leaf extract priming treatment resulted in superior growth and yield parameters. It led to maximum plant height (181.9 cm), number of ears (10 m-2), number of grains per ear (372), thousand-grain weight (174.2 g), biological yield (9912 kg ha-1), grain yield (2985 kg ha-1), and harvest index (30.1%). Conversely, the unprimed seeds had lower values for these parameters (plant height: 172.7 cm, number of ears: 8 m-2, number of grains per ear: 354, thousand-grain weight: 167.1 g, biological yield: 9423 kg ha-1, grain yield). Among the sweet corn landraces tested, the Kashmir variety exhibited earlier phenological stages (emergence: 7.8 days, tasseling: 56.2 days, silking: 63.2 days, physiological maturity: 88.6 days) compared to the Kunarh landrace (emergence: 8.6 days; tasseling: 58.6 days, silking: 65.3 days, physiological maturity: 90.1 days). Additionally, the Kashmir landrace demonstrated higher values for plant height (180.0 cm), number of ears (10 m-2), number of grains per ear (368), thousand-grain weight (173.0 g), biological yield (9923 kg ha-1), grain yield (3008 kg ha-1), and harvest index (30.3%) compared to the Kunarh landrace (plant height: 175.8 cm, number of ears: 9 m-2, number of grains per ear: 360, thousandgrain weight: 168.4 g, biological yield: 9540 kg ha-1, grain yield: 2782 kg ha-1, harvest index: 29.2%). It was concluded that pre-sowing seed treatments could improve seed quality, yield, and growth performance of sweet corn landraces and that landraces have the potential for cultivation and improvement.

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Section: Days To Emergencesupporting

confidence: 92%

Impact of Pre-Sowing Seed Treatments on Sweet Corn Landraces under Moringa leaf extract

Khan,

Salman,

Kalim

et al. 2023

ANST

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“…Weather parameters viz., maximum temperature (Tmax), minimum temperature (Tmin), Bright sunshine hours (BSS) were recorded at the agrometeorological observatory located near the experiment field. The agrometeorological indices viz., growing degree days (GDD), heliothermal unit (HTU) was computed and heat use efficiency was calculated as reported by Jan et al (2022) as follows-Growing degree days (°C day) = (Tmax +Tmin)/2 -Tbase Where, Tmax=Daily maximum temperature (C) Tmin =Daily minimum temperature (C), Tb =Base temperature (10 °C) Accumulated HTU (°C day hr)= ∑ GDD × Bright sunshine hours (kg ha -1 °C day -1 )…”

Section: Calculation Of Agrometeorological Indicesmentioning

confidence: 99%

Chickpea Phenology and Yield Related to Agrometeorological Indices Under Different Temperature Regimes

Eshan¹,

Hossen²,

Islam³

et al. 2023

J. Agrofor. Environ.

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Agrometeorological variables have a major impact on crop development and yield, known as crop phenology. The phenology of chickpea under various thermal regimes was evaluated in a field experiment during the rabi season of 2019–2020 at Ishwardi, Pabna district of Bangladesh. Three chickpea cultivars (V1 = BARI Chola 5, V2 = BARI Chola 10, and V3 = BARI Chola 11) were planted under irrigation in four temperature regimes (D1 = November 5, D2 = November 20, D3 = December 5, and D4 = December 20). Early sowing on November 5 had a larger growing degree day (GDD), 2135.5 C days from sowing to harvest, and later sowing on December 20 had a lower GDD (1743.4 C days). From planting to harvest, V1 required a greater GDD (1971.5C days) while V3 required a lower GDD (1805.8 C days). Average heliothermal unit (HTU) varied from 11764.07 C day hrs (D4) to 13879.4 C day hrs (D1). Variety V1 required 13757.85°C day hrs HTU, while V2 and V3 required 13347.05°C day hrs and 11636.8 °C day hrs, respectively. The number of days needed from planting to harvest under D1, D2, D3, and D4 growing conditions were 136.3, 122.6, 118.6, and 107.4 days, respectively. Growth and yield were better for V1 and V2 under D1 settings, but they were lower under D3 conditions, while V3 was better under D2 conditions. BARI Chola 11 among the genotypes was harvested much more quickly and produced more effectively in late-sowing conditions. Physiological maturity and grain yield can be predicted with 92% and 99% accuracy, respectively, using cumulative GDD and HTU. Therefore, the study recommended that different thermal conditions and cultivars' reactions to heat utilization and economic yield have a substantial impact on chickpea cultivar yields.

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“…The HUE typically describes efficiency in the accumulation of biomass (total or per organ) in terms of thermal time, calculated from a ratio between them (Ahmad et al 2017;Jamsheed et al 2023;Solanki et al 2017). HUE has been used in the description of growth mainly in short-cycle crops, such as the case of corn (Zea mays L.) (Jamsheed et al 2023;Jan et al 2022), mustard (Islam et al 2019;Singh and Singh 2014), sesame (Raut and Bankar 2020), rice (Diwan et al 2017), wheat (Solanki et al 2017), sorghum (Prakash et al 2017), millet (Setaria itálica L.) (Nandini and Sridhara 2019), peas (Devi et al 2019) and potato (Darabi 2020;Han et al 2022;Sakar et al 2019) in a comparison of cultivars, treatments or production environments. However, in Andigenum potatoes there are no studies that use HUE as a response variable.…”

Section: Crop Production and Management Articlementioning

confidence: 99%

Efficiency in biomass accumulation of diploid potato cultivars (Solanum tuberosum, Phureja Group) in contrasting environments at elevation

Lizarazo-Peña,

Nústez-López,

Darghan

2023

Bragantia

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Phureja Group potato is endemic and important for northern Andean countries such as Colombia, Ecuador and Venezuela, where it is grown over a wide range of elevation. The objective of the study was to compare the biomass accumulation of five potato cultivars in three contrasting environments in elevation from a latent response variable of vector nature, analogous to "heat efficiency index".Destructive samplings were carried to obtain biomass. A biomass accumulation model was proposed using a latent response variable that integrates total biomass per plant with thermal time, analogous to the "heat use efficiency index". The proposed latent response variable allowed measuring the efficiency in biomass accumulation and making comparisons between elevations and cultivars, with a nonparametric longitudinal variance analysis. The middle location was where the highest efficiency in accumulation of total biomass was observed. The accumulation of total biomass was slow at the higher elevation location during the vegetative stage, but it increased considerably after the initiation of the growth of tubers. The study showed a clear genotype-environment interaction, suggesting that biomass accumulation changes with elevation according to the cultivar. The methodology used in this study has the potential to be used in the longitudinal comparison of cultivars and environments, even when variations in elevation or temperature alter the length of growing cycles.

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Evaluation of seedling age and nutrient sources on phenology, yield and agrometeorological indices for sweet corn (Zea mays saccharata L.)

Cited by 8 publications

References 9 publications

Impact of Pre-Sowing Seed Treatments on Sweet Corn Landraces under Moringa leaf extract

Impact of Pre-Sowing Seed Treatments on Sweet Corn Landraces under Moringa leaf extract

Chickpea Phenology and Yield Related to Agrometeorological Indices Under Different Temperature Regimes

Efficiency in biomass accumulation of diploid potato cultivars (Solanum tuberosum, Phureja Group) in contrasting environments at elevation

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