Temperate Forage Seed Production

Falcinelli, M.

doi:10.1300/j153v01n01_04

Cited by 19 publications

(21 citation statements)

References 83 publications

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“…Later on, during Millard reaction, different amadori products interact with each other and formed polymeric brown coloured products [61]. Therefore, lipid peroxidation and the loss of membrane phospholipids are significant causes of seed ageing under natural ageing conditions [5]. SOD serves a protective role in respiring cells through its elimination of the reactive superoxide radical [62].…”

Section: Discussionmentioning

confidence: 99%

“…As the area planted with onion is increasing, the demand for high-quality seed is growing [3]. Availability of viable and vigorous seed at the time of planting is of paramount importance for accomplishing production targets [4,5]. Because the cultivable area is slashing as a consequence of the ever-growing population, the increased agricultural productivity is the only alternative that could be achieved through good quality inputs [6,7].…”

Section: Introductionmentioning

confidence: 99%

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Assessment of Natural Ageing Related Physio-Biochemical Changes in Onion Seed

2019

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This research was performed for a period of three years to determine the effect of natural seed ageing on different physiological and biochemical changes in three extensively cultivated onion cultivars in Northern India. Seed storage studies showed that germination percent, seed viability and other seed quality parameters decreased significantly with increasing storage time. The onion seed can be stored for a maximum period of one year under ambient conditions to maintain required germination percentage (>70%). Overall, Hisar Onion-4 stored better when compared to Hisar Onion-3 and Hisar-2. As the ageing progressed the seed antioxidants, namely superoxide dismutase (SOD), catalase (CAT), dehydrogenase (DHA) and peroxidase (POD) decreased significantly (p < 0.05) in all cultivars whereas, the electrical conductivity (EC) of seed leachates increased significantly. Under the field conditions, seedling establishment percent (SE) onion seed was positively correlated (R2 = 0.98; p < 0.05) with germination percent (GP). Overall, more than one year period of seed storage was associated with poor germination and seedling establishment potential in onion.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Assessment of Natural Ageing Related Physio-Biochemical Changes in Onion Seed

2019

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“…Seed marketing demand and cultural practices too can have an impact. Seed setting and development, and seed shattering are the qualities to be considered in breeding programs to increase seed yield [22]. Seed production of forage species in Italy is not very consistent and largely insufficient to cover national demand [23].…”

Section: Future Scenarios and Breeding Rolementioning

confidence: 99%

Perspectives and Challenges of Italian Catalogue of Herbage Varieties

Giolo¹,

Macolino²,

Moreno³

et al. 2016

JFSE

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Abstract:In Mediterranean countries forage crops and temporary grasslands are the most important supply even if severe moisture stress is common. In Italy, forage systems are various and differently located from North to South of the mainland due to strong influence by rainfall distribution. Grasses and grazing cover 3.4 million ha of Italian utilized agricultural area (UAA) while alternated grassland and grass meadows cover 1.9 million ha. Most of grasslands are located in hilly and mountainous areas and are important for reducing erosion. Italy has a great longitudinal extension which accounts for a great variety of climate systems and soils: the northern regions have a humid subtropical climate and differ greatly from the south part that fits the Mediterranean climate profile. During the last 100/150 years the Italian climate has become warmer and drier showing an increase of erratic precipitation intensity. The future of breeding of forage grasses and legumes should be focused on higher nutrient use efficiencies and increased sustainability. New applications of genomics and bioinformatics will allow advanced breeding strategies. Over the past 15 years breeders have displayed a constant interest in forage species while a greater interest has risen in turfgrass varieties. Seed production of Italian herbages does not cover the requirements of the market. More specific value for cultivation and use (VCU) tests might be an effective means to improve the screening of candidate varieties. The goal is the selection of varieties able to withstand the stress of climate change, have better water and nitrogen use efficiency and resilience of vegetation cover.

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“…Most perennial grasses and legumes that have been selected by humans for seed production have responded dramatically. Indeed, the heritability estimates for seed yield are often over 50% (reviewed by Falcinelli 1999 ). A single cycle of selection for seed yield in perennial grasses has increased yield by 20–47% ( Bean 1972 ), vastly exceeding the rate of progress in annual grain breeding programs.…”

Section: The Perennial-grain Void In Morphospacementioning

confidence: 99%

Missing domesticated plant forms: can artificial selection fill the gap?

Tassel

DeHaan

Cox

2010

Evolutionary Applications

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In the course of their evolution, the angiosperms have radiated into most known plant forms and life histories. Their adaptation to a recently created habitat, the crop field, produced a novel form: the plant that allocates an unprecedented 30–60% of its net productivity to sexual structures. Long-lived trees, shrubs and vines of this form evolved, as did annual herbs. Perennial herb forms with increased allocation to asexual reproduction evolved, but there are no examples of perennial herbs with high sexual effort. We suggest that sowing seed into annually tilled fields favored shorter-lived herbs because of trade-offs between first-year seed production and relative growth rate and/or persistence. By propagating cuttings, people quickly domesticated tuber crops and large woody plants. Perennial herbs were too small to be efficiently propagated by cuttings, and the association between longevity, allogamy and genetic load made rapid domestication by sexual cycles unlikely. Perennial grain crops do not exist because they could not have evolved under the original set of conditions; however, they can be deliberately developed today through artificial phenotypic and genotypic selection.

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Temperate Forage Seed Production

Cited by 19 publications

References 83 publications

Assessment of Natural Ageing Related Physio-Biochemical Changes in Onion Seed

Assessment of Natural Ageing Related Physio-Biochemical Changes in Onion Seed

Perspectives and Challenges of Italian Catalogue of Herbage Varieties

Missing domesticated plant forms: can artificial selection fill the gap?

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