Yield, nutritional quality and stability of orangefleshed sweetpotato cultivars successively later harvesting periods in Mozambique
Long-term storage of sweetpotato roots is a great challenge for smallholder farmers in Mozambique. Piecemeal harvesting allows several months supply of roots for household consumption provided weevil infestation is avoided. The objectives of the present studies were to determine yield and changes in...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
De Gruyter
2017-08-01
|
| Series: | Open Agriculture |
| Subjects: | |
| Online Access: | https://doi.org/10.1515/opag-2017-0050 |
| _version_ | 1818728585554296832 |
|---|---|
| author | Alvaro Abilio Andrade Maria I. Makunde Godwill S. Dango Fishua Idowu Omowumi Grüneberg Wolfgang |
| author_facet | Alvaro Abilio Andrade Maria I. Makunde Godwill S. Dango Fishua Idowu Omowumi Grüneberg Wolfgang |
| author_sort | Alvaro Abilio |
| collection | DOAJ |
| description | Long-term storage of sweetpotato roots is a great challenge for smallholder farmers in Mozambique. Piecemeal harvesting allows several months supply of roots for household consumption provided weevil infestation is avoided. The objectives of the present studies were to determine yield and changes in key macro- and micronutrients associated with early or late harvesting of orange-fleshed sweetpotato cultivars in Mozambique. Four trials representing harvesting periods of 3, 4, 5 or 6 months after planting were established at Gurue in 2015. The randomized complete block design with three replications was laid in each trial. Yield measurements were done in the field and samples were selected and scanned for dry matter, beta-carotene, iron, zinc and carbohydrate using Near Infrared Spectrometry. Collected data were statistically analysed (SAS 1997 software). Yield, dry matter, starch, iron and beta-carotene increased linearly in some cultivars as time to harvest was prolonged. Iron was not affected by harvesting period. Stability of micronutrients such as iron, zinc and beta-carotene is essential when piecemeal harvesting. The study allowed accurate grouping of the cultivars tested into maturity groups for the first time. |
| first_indexed | 2024-12-17T22:32:20Z |
| format | Article |
| id | doaj.art-0ec851b2fcb54c06b66cc1cbef0ee119 |
| institution | Directory Open Access Journal |
| issn | 2391-9531 |
| language | English |
| last_indexed | 2024-12-17T22:32:20Z |
| publishDate | 2017-08-01 |
| publisher | De Gruyter |
| record_format | Article |
| series | Open Agriculture |
| spelling | doaj.art-0ec851b2fcb54c06b66cc1cbef0ee1192022-12-21T21:30:09ZengDe GruyterOpen Agriculture2391-95312017-08-012146446810.1515/opag-2017-0050opag-2017-0050Yield, nutritional quality and stability of orangefleshed sweetpotato cultivars successively later harvesting periods in MozambiqueAlvaro Abilio0Andrade Maria I.1Makunde Godwill S.2Dango Fishua3Idowu Omowumi4Grüneberg Wolfgang5International Potato Center, Av. FPLM 2698, Maputo, MozambiqueInternational Potato Center, Av. FPLM 2698, Maputo, MozambiqueInternational Potato Center, Av. FPLM 2698, Maputo, MozambiqueInternational Potato Center, Av. FPLM 2698, Maputo, MozambiqueInternational Potato Center, Av. FPLM 2698, Maputo, MozambiqueInternational Potato Center, Av. La Molina 1895, La Molina, Lima, PeruLong-term storage of sweetpotato roots is a great challenge for smallholder farmers in Mozambique. Piecemeal harvesting allows several months supply of roots for household consumption provided weevil infestation is avoided. The objectives of the present studies were to determine yield and changes in key macro- and micronutrients associated with early or late harvesting of orange-fleshed sweetpotato cultivars in Mozambique. Four trials representing harvesting periods of 3, 4, 5 or 6 months after planting were established at Gurue in 2015. The randomized complete block design with three replications was laid in each trial. Yield measurements were done in the field and samples were selected and scanned for dry matter, beta-carotene, iron, zinc and carbohydrate using Near Infrared Spectrometry. Collected data were statistically analysed (SAS 1997 software). Yield, dry matter, starch, iron and beta-carotene increased linearly in some cultivars as time to harvest was prolonged. Iron was not affected by harvesting period. Stability of micronutrients such as iron, zinc and beta-carotene is essential when piecemeal harvesting. The study allowed accurate grouping of the cultivars tested into maturity groups for the first time.https://doi.org/10.1515/opag-2017-0050sweetpotatonutritional stabilitystorage rootmaturity at harvest |
| spellingShingle | Alvaro Abilio Andrade Maria I. Makunde Godwill S. Dango Fishua Idowu Omowumi Grüneberg Wolfgang Yield, nutritional quality and stability of orangefleshed sweetpotato cultivars successively later harvesting periods in Mozambique Open Agriculture sweetpotato nutritional stability storage root maturity at harvest |
| title | Yield, nutritional quality and stability of orangefleshed sweetpotato cultivars successively later harvesting periods in Mozambique |
| title_full | Yield, nutritional quality and stability of orangefleshed sweetpotato cultivars successively later harvesting periods in Mozambique |
| title_fullStr | Yield, nutritional quality and stability of orangefleshed sweetpotato cultivars successively later harvesting periods in Mozambique |
| title_full_unstemmed | Yield, nutritional quality and stability of orangefleshed sweetpotato cultivars successively later harvesting periods in Mozambique |
| title_short | Yield, nutritional quality and stability of orangefleshed sweetpotato cultivars successively later harvesting periods in Mozambique |
| title_sort | yield nutritional quality and stability of orangefleshed sweetpotato cultivars successively later harvesting periods in mozambique |
| topic | sweetpotato nutritional stability storage root maturity at harvest |
| url | https://doi.org/10.1515/opag-2017-0050 |
| work_keys_str_mv | AT alvaroabilio yieldnutritionalqualityandstabilityoforangefleshedsweetpotatocultivarssuccessivelylaterharvestingperiodsinmozambique AT andrademariai yieldnutritionalqualityandstabilityoforangefleshedsweetpotatocultivarssuccessivelylaterharvestingperiodsinmozambique AT makundegodwills yieldnutritionalqualityandstabilityoforangefleshedsweetpotatocultivarssuccessivelylaterharvestingperiodsinmozambique AT dangofishua yieldnutritionalqualityandstabilityoforangefleshedsweetpotatocultivarssuccessivelylaterharvestingperiodsinmozambique AT idowuomowumi yieldnutritionalqualityandstabilityoforangefleshedsweetpotatocultivarssuccessivelylaterharvestingperiodsinmozambique AT grunebergwolfgang yieldnutritionalqualityandstabilityoforangefleshedsweetpotatocultivarssuccessivelylaterharvestingperiodsinmozambique |