Investigations of the Flowering Habit and Winter Survival of Red Clover, Trifolium Pratense L., During the First Year of Growth PDF Download
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Author: Henri Paul Therrien
Publisher:
ISBN:
Category : Clover
Languages : en
Pages : 220
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Author: Henri Paul Therrien
Publisher:
ISBN:
Category : Clover
Languages : en
Pages : 220
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Author: Cora Elizabeth Sarah Loucks
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Red clover (Trifolium pratense L.), when included in corn (Zea mays)-soybean (Glycine max)-winter wheat (Triticum aestivum L. em. Thell) rotations in relay cropping with winter wheat, has been shown to increase organic matter, soil tilth, yield and productivity of the rotation and to decrease soil erosion, nitrate leaching and synthetic nitrogen fertilizer requirements. In spite of these benefits, red clover inclusion into crop rotation has declined, largely due to non-uniformity of red clover stands. In Ontario, causes of heterogeneous red clover stands have not been conclusively determined although the effects of tillage and shifts in competition for light and nutrients between wheat and clover during relay cropping have been investigated. As suggested by the high year effect across those studies, variation in soil moisture during relay cropping likely has a large effect on red clover stand uniformity. We conducted a field experiment repeated over three years to test the impact of different soil moisture deficits on the establishment of clover varieties with different growth habits (single-cut and double-cut). Low soil moisture, beginning either late May or late June, under winter wheat decreased red clover stand densities and above-ground biomass. A second field experiment more specifically examined the effect of water exclusion on red clover stand uniformity over a large area under irrigated and non-irrigated conditions. In 2015, low soil moisture in spring increased stand non-uniformity in non-irrigated plots. Differences between varieties in response to drought and drought tolerance mechanisms were investigated in growth room studies. The double-cut variety Belle had greater leaf area and shoot water content during mild to moderate drought conditions compared to the single-cut variety Altaswede. In contrast, Altaswede had significantly higher survival rates than Belle after moderate to severe drought stress. Differences in drought response and recovery were also observed between other single-cut and double-cut varieties. By demonstrating that red clover growth and stand uniformity can be impacted by drought mechanisms, effective strategies for the development of improved varieties through breeding or screening efforts can be identified.
Author: Abraham H. Halevy
Publisher: CRC Press
ISBN: 1351080989
Category : Science
Languages : en
Pages : 582
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Book Description
These volumes are an exhaustive source of information on the control and regulation of flowering. They present data on the factors controlling flower induction and how they may be affected by climate and chemical treatments. For each plant, specific information is provided on all aspects of flower development, including sex expression, requirements for flowering initiation and development, photoperiod, light density, vernalization, and other temperature effects and interactions. Individual species are described from the standpoint of juvenility and maturation, morphology, induction and morphogenesis to anthesis. All information is presented alphabetically for easy reference
Author: Morris Dean Wilding
Publisher:
ISBN:
Category :
Languages : en
Pages : 254
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Author: University of Wisconsin--Madison. Department of Agronomy
Publisher:
ISBN:
Category : Agronomy
Languages : en
Pages : 448
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Author: N.L. Taylor
Publisher: Springer Science & Business Media
ISBN: 9401586926
Category : Science
Languages : en
Pages : 246
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Book Description
This book examines the literature on red clover since about 1985. In each of the 17 chapters, an effort was made to summarize the earlier literature and to integrate the recent findings into this background. The timing is appropriate with the present interest in sustainable agriculture, in which red clover was so prominent in the past. This is the first book to be published which deals solely with this important forage species. Audience: Primarily scientists and scientifically trained technicians who will appreciate an up-to-date summary on red clover.
Author: Henry Neal Markham
Publisher:
ISBN:
Category :
Languages : en
Pages : 272
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Author: Dale Smith
Publisher:
ISBN:
Category : Forage plants
Languages : en
Pages : 244
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Author: Xerox University Microfilms
Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 1226
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Author:
Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 1244
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Book Description
