Morphological Components of Yield in Sweet Potato (Ipomoea Batatas (L.) Lam.). PDF Download
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Languages : en
Pages :
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Author:
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Languages : en
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Author: Prem Jose Vazhacharickal
Publisher: Amazon
ISBN: 1973352524
Category : Reference
Languages : en
Pages :
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Sweet potato (Ipomoea batatas Lam.) is the seventh most important food crop among the root and tuber crops grown in the world which is widely cultivated in tropic, sub tropic and warmer temperate regions. A wide variation exists among sweet potato varieties. The molecular markers Is an important genetic diversity analysis tool for enhancing duplicates identification. The samples were collected based on an elaborative iterative survey as well as traditional knowledge from local people. Thirteen different varieties Ipomoea batatas Lam. varieties (Kuravanpady 1, Kuravanpady 2, Jellipara 1, Jellipara 2, Kottathara, Kadanadu, Kanaka, Aruna, Kanjagad, Cherukizhangu 1, Cherukizhangu 2, Thodupuzha. Palakkad) were used for morphological characterization. Morphological data were collected 60 days after planting based on the descriptors for sweet potato (IBPGR, 1991) in all the 13 samples. The variable scored were twining, plant type, ground cover, vine inter node, vine pigmentation, vine tip pubescence, mature leaf shape, mature leaf size, abaxial leaf vein pigmentation, foliage colour, petiole length, petiole pigmentation, storage root and skin colour. Molecular characterization could be more effectively used in screening varieties among sweet potatoes if coupled with other molecular markers especially ISSR, matK and rbcL markers.
Author: Jeewan Pandey
Publisher:
ISBN:
Category : clustering
Languages : en
Pages : 65
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Author: Francisco J. Villalobos
Publisher: Springer
ISBN: 3319461168
Category : Technology & Engineering
Languages : en
Pages : 543
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This textbook explains the various aspects of sustainable agricultures to undergraduate and graduate students. The book first quantifies the components of the crop energy balance, i.e. the partitioning of net radiation, and their effect on the thermal environment of the canopy. The soil water balance and the quantification of its main component (evapotranspiration) are studied to determine the availability of water to rain fed crops and to calculate crop water requirements. Then it sets the limitations of crop production in relation to crop phenology, radiation interception and resource availability (e.g. nutrients). With that in mind the different agricultural techniques (sowing, tillage, irrigation, fertilization, harvest, application of pesticides, etc.) are analyzed with special emphasis in quantifying the inputs (sowing rates, fertilizer amounts, irrigation schedules, tillage plans) required for a given target yield under specific environmental conditions (soil & climate). For all techniques strategies are provided for improving the ratio productivity/resource use while ensuring sustainability. The book comes with online practical focusing on the key aspects of management in a crop rotation (collecting weather data, calculating productivity, sowing rates, irrigation programs, fertilizers rates etc).
Author: Faridatul Mukminah
Publisher: Cuvillier Verlag
ISBN: 9783898732208
Category :
Languages : en
Pages : 95
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Author: Z. HUAMÁN (ed)
Publisher: International Potato Center
ISBN: 9789290432043
Category : Germplasm resources, Plant
Languages : en
Pages : 148
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Book Description
Definitions and use of the descriptors; Passport; Accession data; Collection data; Characterization and preliminary evaluation; Site data; Plant data; Gross morphology; Storage root; Inflorescence; Notes; Further characterization and evaluation; Site data; Plant data; Abiotic stress susceptibility; Biotic stress susceptibility; Allozyme composition; Cytological characters and identified genes; Munsell color chart equivalents for storage root skin and flesh colour.
Author: Shambhu Prasad Katel
Publisher:
ISBN:
Category : Root crops
Languages : en
Pages : 336
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Author: Gad Loebenstein
Publisher: Springer Science & Business Media
ISBN: 1402094752
Category : Technology & Engineering
Languages : en
Pages : 539
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Book Description
In the last four decades of the twentieth century the use of sweetpotato was diversified beyond their classification as subsistence, food security, and famine-relief crop. In developing countries they serve both as human food and for feeding livestock. In Western countries they appeal to health conscious consumers because of their nutritional aspects. The sweetpotato is very high in nutritive value, and merits wider use on this account alone. The book has 2 parts. A general one giving up-to-date information on the history, botany, cultivars, genetic engineering, propagation, diseases and pests, nutritional data and marketing; and a second part presenting data on sweetpotato growing practices in different areas of the world. The information should be useful to researchers, practitioners and crop administrators in different countries.
Author: Jennifer A. Woolfe
Publisher: Cambridge University Press
ISBN: 0521402956
Category : Cooking
Languages : en
Pages : 664
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Book Description
The sweet potato is at present grown in more than 100 of the independent countries of the world. Most of the producer nations are situated in the tropical developing world where a high proportion of the poorest people live. Increasing recognition of the potential which sweet potato holds for combating food shortages and malnutrition has resulted in intensified research efforts to enhance production and consumption. This book reviews our knowledge about the varied aspects of the sweet potato as a human food and animal feedstuff. This volume will be found practical and informative by all those involved in food and nutrition sciences, especially but not exclusively in developing countries. These include research workers in food or agriculture, dieticians, nutritionists, food technologists, students, planners and policy makers.
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Author: Devendra Jain
Publisher:
ISBN:
Category : Electronic books
Languages : en
Pages : 0
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The sweet potato is considered as an excellent source of Œ≤-carotene and anthocyanins and has a considerable value in the functional food market. In this report, 21 sweet potato (Ipomoea batatas [L.] Lam) germplasms were evaluated for genetic diversity using morphological and biochemical and molecular markers. Ten morphological traits were studied, and the mean squares due to germplasm were highly significant for storage root number per plant, individual root weight, storage root (fresh) per plant, storage root (dry) per plant, storage root yield, and storage root length. UPGMA cluster analysis based on morphological traits separated the germplasm into three groups. The similarity coefficient ranged from 0.00 to 0.50 with an average of 0.176. Biochemical analysis, viz. total phenol and antioxidant, was performed to find out superior genotype at biochemical level under given conditions. Maximum total phenol was observed in the genotype ,ÄúV-12,Äù (1.39¬†mg), whereas maximum total antioxidant was observed in ,ÄúSamrat,Äù (0.30¬†mg). RAPD analysis was carried out, and out of 15 RAPD primers, 10 primers produced 96 reproducible and polymorphic bands. UPGMA cluster analysis based on RAPD data also separated the genotypes into three clusters. The results of the present study can be used for sweet potato crop improvement through molecular breeding and marker-assisted selection for desired traits in future.
