The Influence of Weather Conditions During Vegetation Period on Yielding of Twelve Determinate Tomato Cultivars

Abstract

Tomato yield and biomass growth are closely linked to climatic conditions during vegetation period. Low temperatures and high precipitation in summer constitute the main cause of the large variability of field tomato yielding contributing to worsen the quality of the yield. The aim of the investigation was determining the influence of meteorological basic components in the growing season of the tomato to total and marketable yield of twelve determinate cultivars. Experiment took place in the open field in the Vegetable Experimental Station of Agricultural University of Mydlniki near Cracow in the years 2008 - 2010. A different sensitivity of examined tomato cultivars to the course of weather conditions was stated. ‘Ondraszek’ cultivar get the highest marketable yield in all years of investigation what indicate the most adaptation to variable weather conditions and cultivars ‘Hetman’, ‘Hubal’ and ‘Babinicz’ were the least adaptated and they gave the lowest yield. Analysis of the influence of weather condition on total and marketable yield of twelve determine tomato cultivars showed, that the sum and distribution of precipitation were decisive. High precipitations decreased total and marketable yield, whereas frequent and lower precipitations influenced favorable. Since from the third stage, i.e., the beginning of fruits setting to the beginning of ripening, a larger impact of meteorological factors on marketable than total yield had been observed. In the fruits ripening stage a marketable yield depended only on sum of temperatures.

Nutritive quality and protein production from grain legumes in a boreal climate

“…In order to compare weather conditions across years and to assess their influence on quality, the Sielianinow hydrothermal coefficient ( K ) was calculated by dividing the sum of monthly precipitation by one‐tenth of the monthly average temperature. A value of K between 1.3 and 1.6 is optimal, while less than 1.3 is considered dry and greater than 1.6 humid . Since the monthly index is rather crude, it was calculated as a 30 day running value from daily data (Fig.…”

“…A value of K between 1.3 and 1.6 is optimal, while less than 1.3 is considered dry and greater than 1.6 humid. 20 Since the monthly index is rather crude, it was calculated as a 30 day running value from daily data ( Fig. 1).…”

Progress towards flowering of faba bean (Vicia faba L.) is more than photothermal

“…In this climate, dry intervals are not necessarily warm, as shown by the month of May, which was both coldest and driest in 2011 than in any of the other years (Table 2). To determine the window of susceptibility to water deficit, we calculated the average Sielianinow index (K) (Jedrszczyk et al, 2012;Lizarazo et al, 2015;Pokojski 2003) for 0-7, 0-10, 0-14, 0-21, 0-30, 3-8, 7-13, 14-20, 21-27 and 14-28 days before flowering. Afterwards, these measures were used in modelling the rate of progress towards flowering.…”

“…Hence, we tested both PAR and sunshine duration as covariates for 1/f. Similarly, an insufficient supply of water affects plant development, and the Sielianinow hydrothermal index (K) (Jedrszczyk, Skowera, Kopcinska, & Ambroszczyk, 2012) provides an informative measure (Lizarazo et al, 2015) of potential stress from water deficit (values <1.3) or excess (values >1.6).…”

The influence of NANO-GRO® organic stimulator on the yielding and fruit quality of field tomato (Lycopersicon esculentum Mill.)

“…The profitability of tomato field production in Poland is most depended on the course of weather conditions, especially temperature and precipitation, during the growing period (Jędrszczyk et al 2012, Skowera et al 2014. Practically, therefore, the productivity of field tomato is threatened in any vegetation period.…”