Effects of Time of Harvest at Different Moisture Contents on Seed Fresh Weight, Dry Weight, Quality (Viability and Vigour) and Food Reserves of Peas (Pisum sativum L.)

Siddique, AB; Wright, D. J.

doi:10.3923/ajps.2003.983.992

Cited by 11 publications

(6 citation statements)

References 34 publications

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“…Seed quality attributes: It is established that harvesting of seed at optimum time and stage is most important to obtain quality seed; maximum seed dry weight and quality was obtained during physiological maturity (Harrington 1972). This hypothesis was supported by many researchers for a long time (Alans and Eser 2008), but later studies (Siddique and Wright 2003) in many crops showed its contradiction with harvest maturity. The present findings showed that the maximum seed quality (germination and vigour) during physiological maturity, whereas there was a steady increase in seed dry weight, under E1 & E2, respectively.…”

Section: Physiological and Biochemical Changes During Seed Developmen...mentioning

confidence: 97%

Morpho-physiological and biochemical changes during seed development in cucumber (Cucumis sativus)

et al. 2022

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Morpho-physiological and biochemical changes in developing cucumber (Cucumis sativus L) seeds were monitored under both open field (E1) and protected environments (E2) during 2019 at ICAR-IARI, New Delhi. Fruits developed from hand pollinated flowers, in Pusa Barkha and Pusa Uday varieties were harvested at five-day intervals. The environment influenced both days to maturity and development of fruit and/or seed. Irrespective of varieties, seasons and environments, seed moisture decreased (over three folds); seed fresh and dry weights increased (one & half and three folds, respectively). Electrical conductance (EC), total soluble sugars (TSS) and total soluble proteins (TSP), from seed leachates, followed a bell-shape pattern. The reserve accumulation (TSS, starch, TSP and oil) registered an increase both in seed fresh and dry weights; the seed filling continued up to maturity. The ROS activity (H2O2& O2-) initially increased then decreased significantly up to maturity. A significant decrease in antioxidant enzymes indicated seed desiccation resistance. Seeds attained maximum germination (70.0 &73.2%), seed vigour-I (1114.3 &1323.1), seed vigour-II (8.61 & 9.55) during 40 DFP&50 DFP; and seed dry weights (19.9 & 20.15 mg/seed) under E1&E2, respectively.

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Section: Physiological and Biochemical Changes During Seed Developmen...mentioning

confidence: 97%

Morpho-physiological and biochemical changes during seed development in cucumber (Cucumis sativus)

et al. 2022

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“…Seeds were maintained in a chamber at 10 ºC until they were processed. A subset of 20% of the seeds was reserved to analyze differences in their mass, so that 50-200 seeds per treatment were weighted after being oven-dried at 60ºC for 48 h (Siddique and Wright, 2003). Seeds were weighted individually for B. madritensis and E. moschatum.…”

Section: Field Experimentsmentioning

confidence: 99%

Transgenerational Responses to Climate Change in Mediterranean Annual Species with Contrasting Functional Strategies

Gallego‐Tévar¹,

Hidalgo-Galvez²,

Cambrollé³

et al. 2021

SSRN Journal

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“…This is because harvesting before physiological maturity may result in immature seeds with reduced seed quality and germination (Samarah 2006). Late harvest risks seed yield losses due to seed shattering (Siddique & Wright 2003). Thus, a biological indicator of physiological maturity is required to indicate harvest time.…”

Section: Introductionmentioning

confidence: 99%

Seed development of arrowleaf, balansa, gland and Persian clover

Nori¹,

Monks²,

Moot³

2015

Journal of NZ Grasslands

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The development process from floral bud formation to seed maturity of four top flowering annual clovers was quantified from a field experiment across 10 sowing dates at Lincoln University, Canterbury, New Zealand. For each species, a numeric reproductive scale was created as a field guide to document morphological changes as the bud progresses through reproductive development. The duration from bud visible to open flower was 341 °C days for 'Cefalu' arrowleaf, 215 °C days for 'Bolta' balansa, 196 °C days for 'Prima' gland and 186 °C days for 'Mihi' Persian clover. The inflorescence then required a further 274-689 °C days, 185 °C days , 256 °C days and 425 °C days for each respective species to reach physiological maturity. This was indicated when 50% of seeds had turned red/brown for 'Cefalu' arrowleaf, 100% pods turned yellow for 'Bolta' balansa, 100% of seeds were yellow and hard for 'Prima' gland, and pods turned brown with the first sign of colour change in seeds for 'Mihi' Persian clover. These results can be used to facilitate on farm decision making in relation to grazing management or seed set for subsequent regeneration. Keywords: floral development chart, harvest maturity, peak flowering, pollination, seed filling, thermal time, Trifolium vesiculosum, T. michelianum, T. glanduliferum, T. resupinatum

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Effects of Time of Harvest at Different Moisture Contents on Seed Fresh Weight, Dry Weight, Quality (Viability and Vigour) and Food Reserves of Peas (Pisum sativum L.)

Cited by 11 publications

References 34 publications

Morpho-physiological and biochemical changes during seed development in cucumber (Cucumis sativus)

Morpho-physiological and biochemical changes during seed development in cucumber (Cucumis sativus)

Transgenerational Responses to Climate Change in Mediterranean Annual Species with Contrasting Functional Strategies

Seed development of arrowleaf, balansa, gland and Persian clover

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