Primerjava terminov setve različnih vrst listnatih vrtnin za pridelavo mlade listne zelenjave

Grden, Simona (author), Slatnar, Ana (mentor)

V raziskavi smo preučevali različne termine setve pri nas še neuveljavljenih sort oz. vrst namenjene za pridelavo mlade listne zelenjave. Uporabili smo špinačo (Spinacia oleracea 'Harmonica'), beli dvoredec (Diplotaxis erucoides 'Wasabi'), tatsoi (Brassica rapa var. rosularis 'Green'), rdečo peso (Beta vulgaris 'Bull’s blood- Scarletta') in blitvo (Beta vulgaris 'Rhubarb chard'). Semena smo sejali v štirih ponovitvah za vsak termin, v treh terminih, med katerimi je bil 14. dnevni razmik (14. 2. 2024, 28. 2. 2024, 13. 3. 2024). Tretje ponovitve zaradi slabih rezultatov ne navajamo med rezultati. Ob doseganju tehnološke zrelosti smo pridelek stehtali, naključnim listom smo izmerili dolžino, vsebnost skupnega klorofila s SPAD metrom in vsebnost suhe snovi. V splošnem je drugi termin setve dal večje in boljše pridelke kot prvi termin setve. Pri merjenju mase smo največjo povprečno količino stehtali pri drugem terminu setve tatsoi 'Green' (899,62 g), najmanjšo povprečno količino pa pri belem dvoredcu 'Wasabi' (21,01 g) pri prvi ponovitvi. Največje povprečne vrednosti pri meritvah listov v dolžino smo namerili pri tatsoi 'Green' (14,6 cm) pri drugem terminu setve, najslabše pri prvem terminu setve špinače 'Harmonica' (10,5 cm). Pri merjenju vsebnosti skupnega klorofila smo največje povprečne količine izmerili pri prvem terminu setve špinače 'Harmonica' (45,6), najslabše pa pri rdeči pesi 'Bull’s blood- Scarletta' (30,9) pri prvem terminu setve. Največjo povprečno vsebnost suhe snovi smo izmerili pri prvem terminu setve tatsoi 'Green' (0,32 g), najslabšo pa pri drugem terminu setve rdeče pese 'Bull’s blood- Scarletta' (0,10 g).

• Language: Slovenian
• Keywords: terminska setev, mlada listna zelenjava, špinača, beli dvoredec (Diplotaxis erucoides), tatsoi (Brassica rapa var. rosularis), rdeča pesa, blitva
• Work type: Bachelor thesis/paper
• Typology: 2.11 - Undergraduate Thesis
• Organization: BF - Biotechnical Faculty
• Year: 2024
• PID: 20.500.12556/RUL-165139
• COBISS.SI-ID: 216401667
• Publication date in RUL: 24.11.2024

Secondary language

• Language: English
• Title: Comparison of sowing dates of different types of leafy vegetables for »baby leaf«

Abstract

In this study, we investigated different sowing dates of varieties that are not yet established in our country or varieties intended for the production of young leafy vegetables. Five varieties or species were used: spinach (Spinacia oleracea 'Harmonica'), white wallrocket (Diplotaxis erucoides 'Wasabi'), tatsoi (Brassica rapa var. rosularis 'Green'), beetroot (Beta vulgaris 'Bull's blood- Scarletta') and chard (Beta vulgaris 'Rhubarb chard'). The seeds were sown in four replicates for each term, on three dates, with an interval of 14 days between each replicate (14. 2. 2024, 28. 2. 2024, 13. 3. 2024). The third replicate is not included in the results due to poor results. At technological maturity, the plants were weighed and the length, total chlorophyll content with SPAD meter and dry matter content of randomly selected leaves were measured. In general, the second sowing date gave higher and better yields than the first sowing date. For weight measurements, the highest average weight was recorded in the second sowing of 'Green' tatsoi (899.62 g) and the lowest average weight in the first repetition of 'Wasabi' white wallrocket (21.01 g). The highest mean values for leaf length measurements were recorded for 'Green' tatsoi at the second sowing (14.6 cm) and the lowest for 'Harmonica' spinach at the first sowing (10.5 cm). When measuring the total chlorophyll content, the highest average values were measured in 'Harmonica' spinach (45.6) at the first sowing date and the lowest in 'Bull's blood - Scarletta' beetroot (30.9) at the first sowing date. The highest average dry matter content was recorded for 'Green' tatsoi at the first sowing date (0.32 g) and the lowest for 'Bull's Blood- Scarletta' beetroot at the second sowing date (0.10 g).

• Keywords: sowing dates, baby leaf, spinach, white wallrocket (Diplotaxis erucoides), tatsoi (Brassica rapa var. rosularis), beetroot, chard