Rôle of Mother Tuber in Growth of Potato Plant

1929 ◽  
Vol 87 (1) ◽  
pp. 157-194 ◽  
Author(s):  
F. E. Denny
Keyword(s):  
2021 ◽  
Author(s):  
Serik Abeuov ◽  
Olzhas Shoykin ◽  
Viktor Kamkin ◽  
Yuri Ermokhin

The authors carried out long-term research on the effect of mineral fertilizers on the “Gala” potato variety in the Pavlodar region. The relationship was established between the nitrogen, phosphorus and potassium chemical composition of the potato plant in certain phases of growth and development. Various chemical and biochemical processes occur in soil and plants every second. The productivity of plants (y) depends on how the processes take place and proceed, since it is a function of the chemical composition (x) of the leaves: y = f x. The theoretical foundations of plant diagnostics are based on the role of nutrients in the formation of the crop, starting from the early stages of development. According to Yu. I. Ermokhin, the theory of this research provides information on the needs of plants, and in practice these needs must be satisfied. The authors carried out field experiments with fertilizers to obtain the sought-for connections from the low to the optimal content between the ratio of nutrients in the potato plant, which is confirmed by high correlation coefficients (r = 0.79-0.97). If the nitrogen content is higher than the optimal 4.64% in the 7-leaf phase and 4.16% in the flowering phase, then the nature of the ovary takes on a different meaning and the equation is described in a quadratic parabola form. Keywords: potato, harvest, nutrition, fertilizers, plant growth


2020 ◽  
pp. 83
Author(s):  
G.S. Balashova ◽  
O.I. Kotova ◽  
O.O. Yuzyuk ◽  
B.S. Kotov ◽  
S.M. Yuzyuk ◽  
...  

2020 ◽  
pp. 41-58

A field experiment was conducted in Ramadi, Anbar province, western Iraq, in soil with a Silt Loam soil during the autumn season 2018, to study the role of compost, water stress and the surface and subsurface drip irrigation system. 50, 75 and 100% of the net irrigation depth. In the design of the splintered splinters, the transactions were divided according to the design of the complete random sections and by three replicates. Each sector was divided into two main parts, in which the compost was distributed. 1 - Without adding 2 - Addition of 10 tons’ e- 1. Each was divided into two secondary pieces. 2. Sub-surface irrigation Each secondary subdivision was divided into three sub-sub-sections as experimental units where irrigation levels 50, 75 and 100% of the net depth of the irrigation were distributed. Use the American Type A evaporation pond at the irrigation time. The results showed that the level of addition of 10 tons e-1 led to a significant increase in all indicators of the study number of air legs and paper area and the weight of the tuber and the number of tubers and the marketable and the total number of 2.38 stem plant -1, 72.75 dm 2, 124.2 g and 4.84 darn plant - 131.46 tons e-1 and 42.95 tons e-1 sequentially. The average number of air stems, paper area, weight of tuber, number of tubers, marketable value and total yield of potato plant at the irrigation level were significantly higher than 100% of the net depth of the broth, reaching 2.41 stem plant-1, 65.92 dm 2, 136.7 g, 4.89, Ton e-1 and 42.55 tons e-1 sequentially. The average number of air stems, paper area, weight of tuber, tubers, marketable, and total of subsurface irrigation was also higher than 2.34 stem plant -1,68.04 dm 2, 147.7 g, 4.79,32.39 tons e-1, and 42. 13 tons e-1 sequentially, genotype and seed priming in improving seedling performance to tolerate salt stress.


JAMA ◽  
1966 ◽  
Vol 195 (12) ◽  
pp. 1005-1009 ◽  
Author(s):  
D. J. Fernbach
Keyword(s):  

JAMA ◽  
1966 ◽  
Vol 195 (3) ◽  
pp. 167-172 ◽  
Author(s):  
T. E. Van Metre

2018 ◽  
Vol 41 ◽  
Author(s):  
Winnifred R. Louis ◽  
Craig McGarty ◽  
Emma F. Thomas ◽  
Catherine E. Amiot ◽  
Fathali M. Moghaddam

AbstractWhitehouse adapts insights from evolutionary anthropology to interpret extreme self-sacrifice through the concept of identity fusion. The model neglects the role of normative systems in shaping behaviors, especially in relation to violent extremism. In peaceful groups, increasing fusion will actually decrease extremism. Groups collectively appraise threats and opportunities, actively debate action options, and rarely choose violence toward self or others.


2018 ◽  
Vol 41 ◽  
Author(s):  
Kevin Arceneaux

AbstractIntuitions guide decision-making, and looking to the evolutionary history of humans illuminates why some behavioral responses are more intuitive than others. Yet a place remains for cognitive processes to second-guess intuitive responses – that is, to be reflective – and individual differences abound in automatic, intuitive processing as well.


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