Growth and Yield Components of Sweet Potato (Ipomoea batatas L.) and their Relationships with Root Yield
Journal Title: Journal of Experimental Agriculture International - Year 2015, Vol 9, Issue 5
Abstract
Aims: To assess the extent of the relationships of various growth and yield related characters. To evaluate the direct and indirect contributions of these characters to root yield, a basis of selection for further improvement. Study Design: Field Experiment, in Randomized Complete Block Design. Place and Duration of Study: Teaching and Research Farm of Bayero University, Kano (11°58’N and 8°25’E) and Agricultural Research Station Farm, Minjibir (12°11’N and 8°32’E) located in the Sudan Savanna of Nigeria between July-October, 2014. Methodology: Sixteen (16) sweet potato advanced lines: Centennial, AYT/08/055, TIS8164, TIS87/0087, NRSP/12/097, UMUSPO/2, UMOSPO/1, SOLOMON1, EA/11/022, EA/11/025, EA/11/003, UM/11/015, NRSP/12/095, UM/11/001, UM/11/022, and a local check (Kantayi idda) were evaluated using a randomized complete block design with three replications. Data were collected on number of leaves per plant, vine length, vine weight, number of roots per plant, average root weight and the root yield. Simple and partial correlations between root yield (Y), growth and yield components (X) and within the growth and yield components themselves were worked out. Results: Root yield was found to be significant (p<.01) and positively correlated with number of leaves per plant, number of roots per plant and average root weight. Vine length was negatively correlated to average root weight and root yield, whereas number of roots per plant was positively correlated to the average root weight and root yield. The path analysis also revealed that average root weight registered the highest direct contribution to root yield. The highest indirect effect on root yield also came from the number of roots per plant via the average root weight. Conclusion: The average root weight contribution to root yield was much higher than those of vine length and vine weight both directly and indirectly. Thus, emphasis should be given towards increasing the average root weight and number of roots per plant as criteria and basis of selection of sweet potato for higher root yield.
Authors and Affiliations
S. U. Yahaya, A. M. Saad, S. G. Mohammed, S. O. Afuafe
Keywords
Related Articles
- EP ID EP354094
- DOI 10.9734/AJEA/2015/20078
- Views 88
- Downloads 0
Integrating Mechanical and Chemical Control Treatments to Manage Invasive Weed Chromolaena odorata (L.) R. M. King and H. Robinson in Grassland Area
An experiment was conducted on Chromolaena odorata dominated grassland to determine the efficacy of integrated mechanical and chemical control on regrowth of Chromolaena odorata and other weeds and to determine their bot...
Response of Broilers to Dietary Moringa oleifera Leaf, Raw and Cooked Seed Meal and Synthetic Antibiotics
The effects of Moringa oleifera leaf meal and raw and cooked seed meal as a replacement for synthetic antibiotic (tetracycline) on carcass characteristics, heart and liver histology of broiler chickens were assessed in a...
Alternative Substrates for Production of Cherry Tomato Seedlings
The cherry tomato crop has a high production cost, which can be reduced in part using alternative substrates. The objective of this study was to evaluate the different alternative substrates for production of cherry toma...
Yield and Root Quality of Two Sweetpotato (Ipomoea batatas [L.] Lam) Varieties as Influenced by Chicken Manure, Inorganic Fertilizer and Storage Methods
Two field experiments were conducted at two seasons at the University of Education, Winneba, Mampong-Ashanti campus to investigate the responses of the yield and root quality of two varieties of sweetpotato (Apomuden and...
Analysis of Seed Vigor Responses in Soybean to Invasive Silver Carp (Hypophthalmichthys molitrix) Protein Hydrolysate Treatments
Aim: To produce fish protein hydrolysates (FPH) from invasive silver carp (Hypophthalmichthys molitrix) under controlled hydrolysis conditions, and to examine the effects of FPH on seed vigor, using standard vigor tests....