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Enhancing Production of sweet potato crop in Tigray region, Ethiopia: Evaluation of Sweet Potato [Ipomoea batatas (L.) Lam.] Varieties in South and South East areas of Tigray, Ethiopia - Couverture souple

Amare, Birhanu; Abay, Fetien; Tsehaye, Yemane

 
9783659622335: Enhancing Production of sweet potato crop in Tigray region, Ethiopia: Evaluation of Sweet Potato [Ipomoea batatas (L.) Lam.] Varieties in South and South East areas of Tigray, Ethiopia
Couverture souple
ISBN 10 : 3659622338 ISBN 13 : 9783659622335
Editeur : LAP LAMBERT Academic Publishing, 2014

Synopsis

Seven sweet potato varieties were tested at three locations of Tigray in 2012 cropping season. to evaluate the yield and yield components of the varieties in southern and eastern zones of Tigray. The experiment was laid out in RCBD with three replications and in plot size of 4.2m x 2.4m. Net harvestable plot area was 7.2 m2 with inter and intra-row spacing of 0.60m and 0.30m respectively. Combined analyses of variance for the three locations indicated the existence of significant to highly significant (P < 0.01) genotype differences for almost all traits. Moreover, AMMI analysis for the total storage root yield also showed highly significant (P<0.01) difference for all the variance components and genotype main effect contributed more to the total variability than the other components. The model captured 83.4 % of the interaction sum of squares with the first IPCA axis (in 58.3% of the interaction degrees of freedom) and 16.6% by the second IPCA axis (with 41.7% of the G x E d.f). Based on the analysis, LO and Tulla varieties gave highest root yield, followed by Kulfo. Thus, LO and Tulla varieties should be widely distributed to farmers of the testing locations of the region.

Les informations fournies dans la section « Synopsis » peuvent faire référence à une autre édition de ce titre.

Présentation de l'éditeur

Seven sweet potato varieties were tested at three locations of Tigray in 2012 cropping season. to evaluate the yield and yield components of the varieties in southern and eastern zones of Tigray. The experiment was laid out in RCBD with three replications and in plot size of 4.2m x 2.4m. Net harvestable plot area was 7.2 m2 with inter and intra-row spacing of 0.60m and 0.30m respectively. Combined analyses of variance for the three locations indicated the existence of significant to highly significant (P < 0.01) genotype differences for almost all traits. Moreover, AMMI analysis for the total storage root yield also showed highly significant (P<0.01) difference for all the variance components and genotype main effect contributed more to the total variability than the other components. The model captured 83.4 % of the interaction sum of squares with the first IPCA axis (in 58.3% of the interaction degrees of freedom) and 16.6% by the second IPCA axis (with 41.7% of the G x E d.f). Based on the analysis, LO and Tulla varieties gave highest root yield, followed by Kulfo. Thus, LO and Tulla varieties should be widely distributed to farmers of the testing locations of the region.

Biographie de l'auteur

Mr. Birhanu Amare Gidey is now an Associate Researcher III at Alamata Agricultural research center, Tigray Agricultural Research Institute. Currently he is working as Agronomist with special reference to pulses.

Les informations fournies dans la section « A propos du livre » peuvent faire référence à une autre édition de ce titre.

Éditeur
LAP LAMBERT Academic Publishing
Date d'édition
2014
Langue
anglais
ISBN 10 
3659622338
ISBN 13 
9783659622335
Reliure
Broché
Nombre de pages
96
Coordonnées du fabricant
non disponible
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