Wpływ terminu sadzenia rozsady i osłaniania włókniną polipropylenową na plon i jakość owoców melona (Cucumis melo L.) odmiany Malaga F1

Wydział PrzyrodniczyDoświadczenie polowe przeprowadzono w latach 2008-2010. Badano wpływ dwóch czynników: I - terminu sadzenia rozsady (4 czerwca, 25 maja, 15 maja) II – termin zdjęcia włókniny (po 4 tygodniach od posadzenia rozsady, po 8 tygodniach od posadzenia rozsady, przed zbiorem, kontrola bez okrycia włókniną) na wielkość i jakość plonu melona odmiany Malaga F1 uprawianego na polu w warunkach klimatycznych środkowo-wschodniej Polski. Najwcześniej weszły w owocowanie melony sadzone 15 maja. Najwcześniejszy termin sadzenia miał najkorzystniejszy wpływ na wielkość plonu ogółem, plonu handlowego i średnią masę owocu, w tym również owocu handlowego. Z roślin sadzonych w obu terminach majowych zebrano istotnie większy plon wczesny oraz więcej owoców z rośliny i z powierzchni uprawnej niż z roślin sadzonych o 20 dni później. Owoce z roślin sadzonych 15 maja charakteryzowały się najgrubszym miąższem największą zawartością suchej masy i cukrów ogółem. Osłanianie, bez względu na długość utrzymywania włókniny na roślinach, wpłynęło korzystnie na przyjmowanie się rozsady przyczyniając się do zwiększenia liczby roślin owocujących na poletku. Liczba owoców z rośliny, plon ogółem z powierzchni uprawnej, średnia masa owocu oraz plon wczesny i plon handlowy były istotnie większe z roślin osłanianych niż z nieosłanianych.SUMMARY - The experiment was carried in the years 2008-2010. Effects of the following factors were investigated: I – date of seedlings planting (4th of June, 25th of May, 15th of May); II- date of polypropylene fibre removal (4 weeks after seedlings planting, 8 weeks after seedlings planting, before harvest, control without polypropylene fibre) on the yield and quality of ‘Malaga F1’ melon cultivated in the field in the climatic conditions of central-eastern Poland. The earliest started fruiting melons planted on 15th of May. The earliest date of planting had the most favourable influence on the total and marketable yield, average weight of fruit and weight of marketable fruit. From the plants planted in both dates in May was obtained significantly higher early yield and more fruits from plant and from cultivated area than from the plants planted 20 days later. The fruits from plants planted on 15th of May was characterised by the thickest flesh and the higher content of dry matter and total sugars. The covering, irrespective of the length, favourable influenced on the seedling growth, contributing to increase the number of fruiting plants on the plot. The number of fruits from plant, total yield from cultivated area, average weight of fruit as well as early and marketable yield were significantly higher from covered plants than from noncovered

The effect of transplanting date and covering on the growth and development of melon (Cucumis melo L.)

The effect of different transplanting dates (May 15, May 25, and June 4) and date of polypropylene fiber removal (4 and 8 weeks after transplanting, and control without covering) on the growth, development, and yield of melon (Cucumis melo L.) were investigated. The experiment was carried out during 2008–2010 in eastern Poland (51°53'23.64" N, 22°27'47.96" E). Plants planted on May 15 were longer by 22% and 56%, weighed more by 39% and 76%, and their leaf area index (LAI) was higher by 24% and 117% compared to plants planted on May 24 and June 4, respectively. However, delayed planting reduced the period of growth and development by 7 and 17 days, respectively. When the covering application period was extended from 4 to 8 weeks, stem length increased by an average of 23% and LAI by 38%, but harvest was delayed by 6 days. The respective yields of melon fruits planted on May 15, May 25, and June 4 amounted to 5.09, 4.73, and 3.99 kg m−2. The covering of plants planted at each date contributed to an increase in yield and in the share of marketable fruit yield in the total yield. However, the length of the cover application period did not affect yield levels

THE EFFECT OF DATE OF PLANTING SEEDLINGS AND POLYPROPYLENE FIBRE COVERING ON THE YIELD AND ECONOMIC EFFICIENCY OF MELON

Melon is a little popular vegetable to grow in Poland, due to high climatic requirements. Ensuring appropriate thermal conditions for plants growth is possible with relatively late planting seedlings. However, late planting does not guarantee high yield of good quality fruit. The factor enabling the earlier planting seedlings and improving the conditions of growth is the use of flat covers. The field experiment was conducted in 2008–2010 in central-eastern Poland. The effect of planting seedlings of melon ‘Malaga F1’ (15 May, 25 May and 4 June) and the length of polypropylene fibre 17 g·m-2 covering (by 4 and 8 weeks from planting, until harvest, control without covering) on the yield and economic efficiency of melon cultivation in the field was investigated. Most preferably the yield level and profitability of melon cultivation were influenced by planting seedlings on the 15 May and covering by 4 weeks. However, earlier planting decreased the share of marketable fruits in the total number of fruits. The highest share in the costs structure of melon cultivation had the costs of human labour

The effect of transplanting date and covering on the growth and development of melon (Cucumis melo L.)

The effect of different transplanting dates (May 15, May 25, and June 4) and date of polypropylene fiber removal (4 and 8 weeks after transplanting, and control without covering) on the growth, development, and yield of melon (Cucumis melo L.) were investigated. The experiment was carried out during 2008–2010 in eastern Poland (51°53'23.64" N, 22°27'47.96" E). Plants planted on May 15 were longer by 22% and 56%, weighed more by 39% and 76%, and their leaf area index (LAI) was higher by 24% and 117% compared to plants planted on May 24 and June 4, respectively. However, delayed planting reduced the period of growth and development by 7 and 17 days, respectively. When the covering application period was extended from 4 to 8 weeks, stem length increased by an average of 23% and LAI by 38%, but harvest was delayed by 6 days. The respective yields of melon fruits planted on May 15, May 25, and June 4 amounted to 5.09, 4.73, and 3.99 kg m−2. The covering of plants planted at each date contributed to an increase in yield and in the share of marketable fruit yield in the total yield. However, the length of the cover application period did not affect yield level