scholarly journals Morphological And Ecogeographic Study Of The Diversity Of Cassava (Manihot esculenta Crantz) In Ecuador

2021 ◽  
Author(s):  
Álvaro - Monteros-Altamirano ◽  
César - Tapia ◽  
Nelly - Paredes ◽  
Victor Alulema ◽  
Marcelo Tacán ◽  
...  
Keyword(s):  
Manihot Esculenta ◽  
Morphological Variability ◽  
Morphological Characterization ◽  
Economic Importance ◽  
Extreme Conditions ◽  
Morphological Descriptors ◽  
Manihot Esculenta Crantz ◽  
Qualitative And Quantitative ◽  
Edaphic Conditions

Cassava (Manihot esculenta Crantz) is a crop of nutritional and economic importance worldwide, cultivated in more than 100 tropical and subtropical countries including Ecuador, traditionally cultivated in its three continental regions: the Amazon, the Coast and in the valleys of the Sierra. The purpose of this study was to characterize 195 accessions from INIAP's Ecuadorian cassava collection through 1) morphological characterization with qualitative and quantitative descriptors; and 2) ecogeographic characterization to know the climatic, geophysical and edaphic conditions in which cassava grows and which environments are frequent or marginal for its cultivation. For the morphological characterization, 27 morphological descriptors were used (18 qualitative and nine quantitative), and for the ecogeographic characterization, 55 variables (41 climatic, two geophysical and 12 edaphic). As a result, four morphological groups and three ecogeographic groups were identified. In the research, morphological variability was evidenced, mainly in descriptors related to the leaf, stems and inflorescences. In addition, it was possible to identify accessions that can adapt to extreme conditions of drought and poor soils, which could be used for improvement.

scholarly journals Morphological and Ecogeographic Study of the Diversity of Cassava (Manihot esculenta Crantz) in Ecuador

Agronomy ◽  
2021 ◽  
Vol 11 (9) ◽  
pp. 1844
Author(s):  
Álvaro Monteros-Altamirano ◽  
Cesar Tapia ◽  
Nelly Paredes ◽  
Valeria Alulema ◽  
Marcelo Tacán ◽  
...  
Keyword(s):  
Manihot Esculenta ◽  
Morphological Variability ◽  
Morphological Characterization ◽  
Economic Importance ◽  
Extreme Conditions ◽  
Morphological Descriptors ◽  
Manihot Esculenta Crantz ◽  
Qualitative And Quantitative ◽  
Edaphic Conditions

Cassava (Manihot esculenta Crantz) is a crop of nutritional and economic importance worldwide, cultivated in more than 100 tropical and subtropical countries including Ecuador, where it is traditionally cultivated in the three continental regions: Amazonia, the Coast and in the valleys of the Sierra. The purpose of this study is to characterize 195 accessions from INIAP’s Ecuadorian cassava collection through (1) morphological characterization with qualitative and quantitative descriptors; and (2) ecogeographic characterization to know the climatic, geophysical, and edaphic conditions in which cassava grows and which environments are frequent or marginal for its cultivation. For the morphological characterization, 27 morphological descriptors were used (18 qualitative and nine quantitative), and for the ecogeographic characterization, 55 variables (41 climatic, two geophysical and 12 edaphic). Four morphological groups and three ecogeographic groups were identified. Morphological variability was evidenced mainly in descriptors related to the leaves, stems, and inflorescences. In addition, it was possible to identify accessions that appear capable of growing under extreme conditions of drought and poor soils. These accessions could be used for improvement.

scholarly journals Morphological characterization and classification of cassava (Manihot esculenta Crantz) in Vietnam

2016 ◽  
Vol 38 (3) ◽  
Author(s):  
Chu Duc Ha ◽  
Le Thi Ngoc Quynh ◽  
Nguyen Trong Hien ◽  
Pham Thi Ly Thu ◽  
Le Huy Ham ◽  
...  
Keyword(s):  
Manihot Esculenta ◽  
Morphological Characterization ◽  
Manihot Esculenta Crantz

scholarly journals Karakterisasi Beberapa Sifat Kualitatif dan Kuantitatif Plasma Nutfah Ubi Kayu (Manihot esculenta Crantz.)

2016 ◽  
Vol 16 (1) ◽  
pp. 49
Author(s):  
Nani Zuraida
Keyword(s):  
Manihot Esculenta ◽  
Tuber Weight ◽  
Plant Spacing ◽  
Manihot Esculenta Crantz ◽  
Qualitative And Quantitative ◽  
Leaf Vein ◽  
Experimental Station ◽  
Quantitative Characters ◽  
Cassava Plant ◽  
Stalk Length

<p>Utilization of cassava plant genetics resources<br />could be done when the agronomical and morphological<br />characters are available. Qualitative and quantitative of plant<br />characters have been studied during April-December 2006 at<br />Cikeumeuh Experimental Station, Bogor. A total of 225<br />accessions cassava germplasm were planted in 2 m x 3 m plot<br />size with 100 cm x 60 cm plant spacing. The plants were<br />fertilized by 60 kg N, 20 kg P2O5, and 90 kg K2O per ha. One<br />third N and K fertilizers, and all of P were applied at planting<br />time, while two third N and K were applied at 3 months after<br />planting. The result showed that coefficient variation of<br />qualitative and quantitative characters data of cassava<br />accessions collected showed high variation. Therefore the<br />accessions are going to be maintained and conserved for<br />genetic resources. The plant height, number of tuber, green<br />matter weight, and harvest index were positive correlation with<br />tuber weight. While stem diameter and character of leaf lobe<br />did not correlate with tuber weight. Among qualitative<br />characters (the colors of young leaf, leaf vein, leaf stalk length,<br />leaf lobe, stem, tuber, and number of leaf lobe) did not show<br />difference on tuber weight.</p>

CONCENTRADO PROTEICO OBTIDO DAS FOLHAS DE MANDIOCA (Manihot esculenta Crantz) DE TRÊS VARIEDADES COMERCIAIS.

2017 ◽  
Vol 13 (1) ◽  
Author(s):  
Izabel Aparecida Soares ◽  
Mauro Sérgio Téo ◽  
Carlise DEBASTIANI ◽  
Suzymeire BARONI ◽  
Vanessa Silva RETUCI
Keyword(s):  
Manihot Esculenta ◽  
Crude Protein ◽  
Hydrocyanic Acid ◽  
Protein Concentrate ◽  
Manihot Esculenta Crantz ◽  
White Variety ◽  
Mean Values ◽  
Randomized Design ◽  
Significant Difference ◽  
The Mean

O trabalho teve por objetivo verificar diferenças entre rendimento do concentrado proteico e proteína bruta da folha da mandioca (Manihot esculenta Crantz), obtidos a partir de três variedades comerciais: branca, cascuda e vermelha. As manivas foram plantadas seguindo o delineamento experimental inteiramente casualizado com três repetições. Nas comparações entre as variedades, considerou coletas escalonadas pós-plantio, realizadas aos 12, 14 e 16 meses. O concentrado proteico foi obtido a partir da farinha das folhas inteiras e submetido ao método de termo - coagulação ácido e a proteína bruta pelo método padrão AOAC. Os dados foram submetidos a análise de variância e comparados pelo teste de Tukey - 5% de probabilidade. Os resultados não indicaram diferença significativa entre as médias obtidas para rendimento de concentrado proteico. Para a variável porcentagem de proteína bruta a variedade Branca foi a que apresentou maior valor, com média de 46,25%, seguida pela Cascuda e Vermelha, 44,52% e 37,30%, sucessivamente. Conclui-se que outros estudos devem avaliar condições que possam influenciar no teor de proteína foliar, como clima e solo, e, avaliar os níveis de ácido cianídrico de cada variedade, indicando qual das três é a melhor para a extração do concentrado proteico das folhas. Palavras chaves: Manihot esculenta Crantz, variedades comerciais, concentrado proteico, proteína bruta. ABSTRACT: The study aimed to assess the differences between income protein concentrate, crude protein of cassava leaf (Manihot esculenta Crantz), obtained from three commercial varieties: white, red and cascuda. The cuttings were planted following the completely randomized design with three replications. Comparisons between the varieties considered after planting staggered collections, held on 12, 14 and 16 months. The protein concentrate was obtained from flour of whole sheets and subjected to the term method - acid coagulation and crude protein by AOAC standard method. The data were submitted to ANOVA and Tukey test - 5% probability. The results indicated no significant difference between the mean values obtained for protein concentrate income. For the variable percentage of crude protein White variety showed the highest, with an average of 46.25%, followed by cascuda and Red, 44.52% and 37.30%, successively. We conclude that further studies should evaluate conditions that may affect the leaf protein content, such as climate and soil, and evaluate the hydrocyanic acid levels of each variety, indicating which of the three is the best for the extraction of protein concentrate from leaves Key words: Manihot esculenta Crantz, commercial varieties, protein concentrate, crude protein.

MODELAGEM DA CINÉTICA DE SECAGEM EM FÉCULAS DE MANDIOCA (MANIHOT ESCULENTA CRANTZ)

2018 ◽  
Author(s):  
Barros Sâmela Leal ◽  
Santos Newton Carlos ◽  
Araújo Thaís Jaciane ◽  
Melo Mylena Olga Pessoa ◽  
Nascimento Amanda Priscila Silva
Keyword(s):  
Manihot Esculenta ◽  
Manihot Esculenta Crantz

CONJUNTURA DO MERCADO DA MANDIOCA (Manihot esculenta Crantz) NO BRASIL E NO ESTADO DO PARÁ

2018 ◽  
Author(s):  
Brochado Maura Gabriela da Silva ◽  
Botelho Matheus Gabriel Lopes ◽  
Souza Camila Eduarda Sousa de ◽  
Nunes Mariana Lameira ◽  
Ferreira Leonardo Elias
Keyword(s):  
Manihot Esculenta ◽  
Manihot Esculenta Crantz
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