THE EFFECT OF FLOWER REMOVAL ON POTATO TUBER YIELD

1990 ◽  
Vol 70 (4) ◽  
pp. 1223-1225 ◽  
Author(s):  
S. H. JANSKY ◽  
D. M. THOMPSON

Relationships between fruit and vegetative growth may influence tuber yield. In 1987, flower removal significantly increased yield at irrigated and dryland sites for the potato clone ND860-2. In 1988, flower removal did not significantly increase yield in Norchip, ND2008-2 or ND860-2 planted under dryland conditions. Response to flower removal appears to be dependent on environmental conditions.Key words: Solarium tuberosum, tuber yield, flower removal, potato, ND860-2, partitioning

1976 ◽  
Vol 86 (2) ◽  
pp. 251-255
Author(s):  
D. C. E. Wurr

SummaryApplication of methyl decanoate to a potato crop about the time of tuber initiation reduced the total yield and the yield of tubers in the grade 2·5–5·5 cm though neither of these reductions were significant. However, application of 2,3,5-triiodobenzoic acid increased the yield of tubers 2·5–5·5 cm by up to 20% while having no significant effect on total tuber yield. This change in the tuber size distribution was due to a more even partition of photosynthate between tubers and not to an increase in the total number of tubers.


1986 ◽  
Vol 92 (6) ◽  
pp. 249-256 ◽  
Author(s):  
P. A. H. M. Bakker ◽  
J. G. Lamers ◽  
A. W. Bakker ◽  
J. D. Marugg ◽  
P. J. Weisbeek ◽  
...  

2012 ◽  
Vol 35 (5) ◽  
pp. 664-677 ◽  
Author(s):  
M. Zameer Khan ◽  
M. Ehsan Akhtar ◽  
M. Mahmood-ul-Hassan ◽  
M. Masud Mahmood ◽  
M. Naeem Safdar

Author(s):  
Aitazaz A. Farooque ◽  
Mahnaz Zare ◽  
Farhat Abbas ◽  
Melanie Bos ◽  
Travis Esau ◽  
...  

2020 ◽  
Vol 197 ◽  
pp. 104502 ◽  
Author(s):  
Shu-Min Liang ◽  
Yan-Shan Li ◽  
Muhammad Abdul Rehman Rashid ◽  
Sheng-Ding He ◽  
Peng-Jun Wang ◽  
...  

2019 ◽  
Author(s):  
Humna Khan ◽  
Aitazaz Ahsan Farooque ◽  
Bishnu Acharya ◽  
Travis Esau

2020 ◽  
Vol 12 (12) ◽  
pp. 4937
Author(s):  
Junaid Maqsood ◽  
Aitazaz A. Farooque ◽  
Xander Wang ◽  
Farhat Abbas ◽  
Bishnu Acharya ◽  
...  

Agricultural management practices are responsible for almost two-thirds of the variations in potato tuber yield. In order to answer the research question about the remaining variability of the tuber yield, we hypothesized that climate extremes partly explain the missing component of variations of the tuber yield. Therefore, this research attempts to bridge this knowledge gap in order to generate a knowledge base for future strategies. A climate extreme dataset of the Prince Edward Island (PEI) was computed by averaging the data of five meteorological stations. In detail, changing patterns of 20 climate extreme indices were computed with ClimPACT2 software for 30 years (1989-2018) data of PEI. Statistical significance of the trends and their slope values were determined with the Mann-Kendall test and Sen’s slope estimates, respectively. Average of daily mean temperature (TMm), mean daily minimum temperature (TNm) and the occurrence of continuous dry days (CDD), significantly increased by 0.77 °C, 1.17 °C and 3.33 days., respectively, during the potato growing seasons (May-October) of the past three decades. For this period daily temperature range (DTR), frost days (FD), cold days (TX10p), cold nights (TN10p) and warmest days (TXx) showed decreasing trends of −1.01 °C, −3.75 days, −5.67 days, −11.40 nights, and −2.00 days, respectively. The principal component analysis showed that DTR, TXx, CDD, and TNm were the main factors affecting seasonal variations of tuber yield. The multiple regression model attributed ~39% of tuber yield variance to DTR, TXx, CDD, and TNm. However, these indices explained individually 21%, 19%, 16%, and 4% variation to the tuber yield, respectively. The remaining variation in the tuber yield explained by other yield affecting factors. The information generated from this study can be used for future planning about agricultural management strategies in the Island, for example, the provision of water resources for supplemental irrigation of crops during dry months.


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