Late Spring Culture of Headed Chinese Cabbage(Brassica campestris var. pekinensis)

Abstract

The main purpose of the present research was the study of the behaviour of some headed Chinese cabbage varieties in the Transylvanian Tableland late spring specific conditions. The present research took place in the experimental field which belongs to the Vegetable Growing Department from the University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca, in the spring of 2011. The results showed that Chinese cabbage can be cultivated with success in Transylvanian Tableland specific conditions even in late autumn, even if previous studies have shown that very good results can be obtained in spring and summer, but it is necessary to choose the right variety or hybrid, because of the high bolting tendency of this vegetable.

Study of Some Headed Chinese Cabbage Varieties and Hybrids Growth and Development in Autumn Open Field Culture in Transylvanian Tableland Specific Conditions

“…In the spring crops, plants heights varied between 18.8 and 41.8 cm, higher values being recorded at the same Michihli hybrid, lower ones at Vitimo F 1 hybrid. In spring conditions the number of leaves which were formed in one month was approximately the same as in the present study Apahidean 2011, 2012;Laczi et al, 2014b).…”

“…Compared to the results from the spring crops, in this case plants had higher heights, diameters and weights than those cultivated in open field ( (Laczi et al, 2014b). In autumn plants had much more leaves than those from the spring crops, fact due to the longer vegetation period and better climatic conditions from fall.…”

“…The study involved several varieties and hybrids (some of them were cultivated already in this area, other ones were purchased from different seed producers from abroad) which were cultivated in several places and periods of the year (the crops were established in polyethylene tunnel in spring and autumn, while in open field the planting was made three times, to obtain an early and a late spring crop, and in summer to obtain an autumn crop). Partial results of this experiment were published by Laczi and Apahidean (2011, 2012), Laczi et al (2013Laczi et al ( , 2014a and presented in conferences (Laczi et al, 2014b). The main results of the research underlines the fact that Chinese cabbage can be grown with success in this region, but there is necessary an appropriate cultivation technology and more studies regarding the existing cultivars on the market, in order to reduce the bolting ratio.…”

Growth and Yield of Screenhouse-grown potted Pechay (Brassica rapa L. ssp. chinensis cv. Black Behi) in selected Davao-produced Composts

“…Non-heading Chinese cabbage or pak choi (Brassica rapa subsp. chinensis) was first grown in 5 th century China as a distinct subspecies under the family Brassicaceae (Laczi et al, 2011). Worldwide, cabbage and other Brassica cultivation were estimated at 2.4 M ha with 69.4 M tons of production in 2018 (Food and Agriculture Organization of the United Nations STAT [FAOSTAT], 2019).…”

Evaluation de l’efficacité biologique des biopesticides sur le contrôle de vers gris (<i>Agrotis ipsilon</i>) dans les exploitations maraichères de Lubumbashi en République Démocratique du Congo

“…Une étude en Roumanie a démontré : une corrélation positive et significative entre le poids et la longueur de feuille, le diamètre au collet et le nombre de feuilles. Il peut être conclu qu'avec l'augmentation de la longueur, de diamètre et du nombre de feuilles ; le poids de la plante augmentait également, dans une mesure plus ou moins grande(Laczi et al, 2013). Cependant, des études antérieures du même auteur n'ont pas montré de résultats statistiquement significatifs en matière de relation entre les caractéristiques mentionnées(Laczi & Apahidean, 2012).…”