Effect of mother plant-applied nitrogen and potassium on seed weight and seedling emergence of true potato seed

Kanzikwera, C. R.; Osiru, D.S.O.; Tenywa, J. S.; Adipala, E.; Bhagsari, A. S.

doi:10.4314/acsj.v8i4.27678

Cited by 4 publications

(1 citation statement)

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“…Seeds produced with fertilizer had higher seed weight than those without (Table 9). This supports the findings of Kanzikwera et al [35] who reported that nitrogen application significantly increased 100-seed weight, emergence, and seedling vigour in true potato seeds (TPS). The increase in vigour and emergence can be explained by the well-known fact that heavy seeds contain more food reserves than light seeds and have the capacity to nourish the embryo longer during germination [36].…”

Section: Yield and Yield Componentssupporting

confidence: 91%

Constraints to On-Farm Maize (Zea mays L.) Seed Production in Western Kenya: Plant Growth and Yield

et al. 2012

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Studies have shown that that about 85% of maize farmers in Western Kenya plant local varieties with about 80% using own farm-saved seeds. The production system is characterized by late harvesting, heavy striga infestation, use of local varieties, and low-soil fertility. The objective of this study was to test an on-farm seed production system which would help improve yield and quality of farm saved seeds. The trials were set up in a factorial design fitted as random complete block design. There were 3 factors each at 2 levels: time of harvest, variety choice, and fertilizer application. Fertilizer application led to an 88% increase in yield, 54% increase in number of seeds per cob, and 14% increase in 100-seed weight. Fertilizer application also led to an increase in seed vigour and viability. Yield differences between the 2 varieties were not significant. The correlation between 100-seed weight and seed vigour was significant showing that heavy seeds were more vigourous. Nitrogen application was therefore recommended for increasing yields and for producing vigourous seeds but should be done with caution to avoid lodging as witnessed. This study also noted that farmers are rational and their decisions are usually based on strong economic considerations.

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Section: Yield and Yield Componentssupporting

confidence: 91%