-
Adaptability and Stability of Soybean Cultivars Under Different Times of Sowing in Southern Brazil
Augusto Tessele,
Robson Fernando Missio,
Juliano Boroluzzi Lorenzetti,
Jean Carlos Bortoloto Trentini,
Ruan Carlos Navarro Furtado,
Giovane Moreno
Issue:
Volume 4, Issue 2, April 2016
Pages:
17-22
Received:
7 March 2016
Accepted:
13 March 2016
Published:
29 March 2016
DOI:
10.11648/j.jps.20160402.11
Downloads:
Views:
Abstract: There is a large number of soybean cultivars recommended to the many regions that soybean is cultivated and, even though these cultivars hold a high potential yield, the environmental variation can alter the expected yield due to the genetic x environment interaction. So, the aim of this study was to evaluate the adaptability and stability of ten soybean cultivars in five environments, sowed in different times, in Palotina-PR. The randomized block design was used with three repetitions. The study was conducted in the 2013/14 and 2014/15 harvests. The Eberhart & Russel (1966) and MHPRVG (Resende 2004) methods were used to evaluate the yield adaptability and stability. Based on the results of either methods, the cultivars TMG 7060 RR, TMG 7062 IPRO and NA 5909 RG showed wide adaptability and high stability to this cultivation area.
Abstract: There is a large number of soybean cultivars recommended to the many regions that soybean is cultivated and, even though these cultivars hold a high potential yield, the environmental variation can alter the expected yield due to the genetic x environment interaction. So, the aim of this study was to evaluate the adaptability and stability of ten s...
Show More
-
Foliar Morphometric Study of Jatropha curcas L. (Euphorbiaceae)
Regigláucia Rodrigues de Oliveira,
Francilene Leonel Campos,
Ivanilza Moreira de Andrade
Issue:
Volume 4, Issue 2, April 2016
Pages:
23-28
Received:
14 March 2016
Accepted:
24 March 2016
Published:
12 April 2016
DOI:
10.11648/j.jps.20160402.12
Downloads:
Views:
Abstract: Jatropha curcas L., is popularly known as physic nut, is native to Brazil and it belongs to the Euphorbiaceae family, whose seed is extracted an oil that might be used in the production of biodiesel. It is one of the only oil varieties that do not directly compete with food agriculture. Despite the great potential of Jatropha, several factors must be addressed for full domestication of the species. In this sense, studies aimed at establishing methodologies and morphoanatomical parameters which allow to detect whether or not differences between populations are essential. The objective of this study make a foliar morphometric analysis of three populations of J. curcas L. from the farm located in the Municipality of Piracuruca, Piauí, Carnauba. Geometric morphometry of anatomical landmarks was used. The study was conducted from March 2013 to June 2014. 30 leaves of each population were collected and selected eight anatomical landmarks. The principal component analysis showed that the first three principal components were significant using the "broken stick" model, comprising 60.5% of the total variance. MANOVA only showed significant difference between two of the three pairs of populations, when performed without the alignment of Procrustes. There are no significant differences between populations.
Abstract: Jatropha curcas L., is popularly known as physic nut, is native to Brazil and it belongs to the Euphorbiaceae family, whose seed is extracted an oil that might be used in the production of biodiesel. It is one of the only oil varieties that do not directly compete with food agriculture. Despite the great potential of Jatropha, several factors must ...
Show More
-
Anatomical, Pollen Grains and Seed Exomorphic Studies on Five Species of Cleome L (Cleomaceae Bercht. & Presl) Collected from South West of Saudi Arabia
Issue:
Volume 4, Issue 2, April 2016
Pages:
29-36
Received:
16 March 2016
Accepted:
28 March 2016
Published:
13 April 2016
DOI:
10.11648/j.jps.20160402.13
Downloads:
Views:
Abstract: Micromorphological attributes for five species of C. gynandra L., C. viscosa L, C. scaposa DC, C. paradoxa B.BR and C. brachycarpa Vahl ex DC. belonging to genus Cleome L. in south west of Saudi Arabia was studied by light (LM) and scanning electron microscope (SEM). Studies are interested by hair characters, stomata behaviour, stem and leaf anatomy, pollen grains and seed exomorphic attributes. Stem and leaf anatomy differentiation indicated good taxonomic tools to between species the species, the result of the stomata frequency was significant where the highest stomatal index (SI) of 36.4% was observed in C. gynandra while the lowest one (21.6%) was noticed in C. Paradoxa. However, pollen grains and seed exomorphic is significantly helpful at the specific level. Prolate, tricolpate, monad pollen grains are found in all studied species pollen grains differed in P/E (polar axis / equatorial axis) ratio and exine measurements. Also, every Cleome species has their own seed ornamentation which will be helpful information in differentiation of the studied species. On the basis of seed ultrastructure, three main types of seed ornamentation; reticulate, verrucate and oceallate were revealed. Analysed data by Minitab (Version 13.1) statistical program showed C. gynandra in single level while the remainders were grouped in one cluster in which C. viscocs and C. scaposa are excluded in a alone separated levels in addition the highest similarity percentage appered between C. paradoxa and C. brachycarpa.
Abstract: Micromorphological attributes for five species of C. gynandra L., C. viscosa L, C. scaposa DC, C. paradoxa B.BR and C. brachycarpa Vahl ex DC. belonging to genus Cleome L. in south west of Saudi Arabia was studied by light (LM) and scanning electron microscope (SEM). Studies are interested by hair characters, stomata behaviour, stem and leaf anatom...
Show More
