Influence of Light Treatment on Gibberellin (GA4, GA7, and GA9) Content of Lactuca sativa L. cv. Grand Rapids Achenes

1981 ◽  
Vol 101 (3) ◽  
pp. 189-194 ◽  
Author(s):  
J. Bianco ◽  
C. Bulard
Keyword(s):  
Lactuca Sativa ◽  
Light Treatment ◽  
Lactuca Sativa L ◽  
Grand Rapids

scholarly journals Penggunaan AB Mix dan Media Tanam terhadap Viabilitas Tanaman Selada (Lactuca sativa L. Var. New Grand Rapids) dalam Hydroponic Wick System

2020 ◽  
Vol 5 (1) ◽  
pp. 14-19
Author(s):  
Imam Safir Alwan Nurza ◽  
Diliviva Venesia
Keyword(s):  
Lactuca Sativa ◽  
Agricultural Sector ◽  
Growth And Yield ◽  
Lactuca Sativa L ◽  
Data Collection And Analysis ◽  
Grand Rapids ◽  
Wet Weight ◽  
Number Of Leaves ◽  
Resource Wealth ◽  
Natural Resource Wealth

Indonesia is a country that has abundant natural resources. One of the natural resource wealth is in the agricultural sector. The agricultural sector has a variety of agricultural commodities found in Indonesia. One of them is horticulture. Lettuce (Lactuca sativa L.) is a horticultural commodity. The purpose of this study was to determine the use of ab mix and planting media on lettuce (Lactuca sativa L. var New Grand Rapids) in increasing growth and yield after 40 Days After Planting (HST). This research method is an experiment with statistical data collection and analysis techniques. The results of this study are the number of leaves, plant height, and wet weight in the ab mix is ​​higher than aquades (control) because the ab mix provides nutrients for plant growth so that the plant becomes tall and enlarged with its leaves looking wide. However, the number of seeds germinated and plant viability in aquades (control) was higher than ab mix because there was an inorganic salt in ab mix that inhibited seed germination so that the seed membrane in absorbing water became impermeable.

scholarly journals Seleção de genótipos de Lactuca sativa L. para a produção com adubação orgânica

Revista CERES ◽  
2011 ◽  
Vol 58 (2) ◽  
pp. 202-207 ◽  
Author(s):  
Marcelo de Almeida Guimarães ◽  
Marcelo Storni Mandelli ◽  
Derly José Henriques da Silva
Keyword(s):  
Lactuca Sativa ◽  
Lactuca Sativa L ◽  
Grand Rapids

Com o objetivo de avaliar diferentes genótipos de alface (Lactuca sativa L.), quanto à adaptação a adubação orgânica, foram testados 18 acessos, pertencentes ao Banco de Germoplasma de Hortaliças da Universidade Federal de Viçosa (BGH - UFV) e comparado o desempenho destes com dois cultivares comerciais: Regina de Verão e Crespa Grand Rapids. O experimento foi conduzido com três repetições, em casa de vegetação, e os genótipos foram comparados em substratos contendo adubação mineral e adubação orgânica. As plantas foram cultivadas em vasos de polietileno, com capacidade para 3 dm³, preenchidos com 2,5 dm³ de substrato. O substrato contendo adubação mineral foi preparado a partir do solo, comumente cultivado, e adubado, segundo as recomendações convencionais para a cultura da alface, a partir da análise de rotina do solo. O substrato contendo adubação orgânica consistiu em solo, manejado organicamente, e adubado com 50 t ha-1 de composto orgânico. Na colheita, foram avaliadas as características morfológicas das plantas e a massa fresca e seca das folhas. Observou-se grande diversidade de formas, tamanhos e coloração, entre os acessos, sendo que os acessos BGH 2625, BGH 118 e o cultivar Regina de Verão apresentaram características qualitativas e produtividade que os selecionam para serem utilizados em programas de melhoramento, visando à produção de cultivares para ambiente com adubação orgânica.

scholarly journals Pengaruh Dosis Pupuk Kandang Ayam terhadap Pertumbuhan dan Hasil Tiga Macam Varietas Selada (Lactuca sativa L.)

2021 ◽  
Vol 8 (1) ◽  
pp. 10-18
Author(s):  
Dwi Ismawati ◽  
Tri Rahayu ◽  
Srie Juli Rachmawatie
Keyword(s):  
Lactuca Sativa ◽  
Chicken Manure ◽  
Growth And Yield ◽  
Fresh Weight ◽  
Treatment Combination ◽  
Factorial Method ◽  
Lactuca Sativa L ◽  
Randomized Design ◽  
Affected Plant ◽  
Grand Rapids

The study aims to determine the influence of chicken manure dose on growth and yield on three kinds of lettuce (Lactuca sativa, L.) planted in a polybag. This research was conducted from November 2019 until January 2020, in Gerdu Village, Karangpandan District, Karanganyar Regency, between 450 - 650 m above sea level. The research used a factorial method with a Completely Randomized Design (CRD) consist of two treatment factors. The first factor is dose of chicken manure consisting of 3 levels (D1 = 62.5 g/ polybag, D2 = 125 g / polybag, D3 = 187.5 g/ polybag). The second factor was varieties of lettuce (V) consist of 3 types (V1 = Grand Rapids Variety, V2 = Kriebo Variety, V3 = Bisi SL 02 Variety). Analysis of variance was used to analyzed the data, with the F test at 5% and 1% levels and then followed by Duncan's multiple range test at 5% level. The results showed that chicken manure dosage significantly affects fresh weight and consumption weight per plant. The best dose of chicken manure for the treatment is 125 g / polybag. The varieties significantly affected plant height, fresh weight, and consumption weight and significantly affected leaf width per plant. The interaction between the dose of chicken manure and varieties of lettuce (DxV) showed the best results on the combination 125 g / polybag chicken manure dose with the Kriebo variety (D2V2). This treatment combination gives the highest consumption weight, which is 76.52 g. While the treatment combination of 62.5 g / polybag chicken manure dose and Bisi SL 02 variety (D1V3) had the lowest consumption weight (39.68 g).

Effects of Low pH on the Induction of Root Hair Formation in Young Lettuce (Lactuca sativa L. cv. Grand Rapids) Seedlings

2000 ◽  
Vol 113 (1) ◽  
pp. 39-44 ◽  
Author(s):  
Yasunori Inoue ◽  
Keiko Yamaoka ◽  
Kyoko Kimura ◽  
Kaori Sawai ◽  
Takashi Arai
Keyword(s):  
Lactuca Sativa ◽  
Root Hair ◽  
Low Ph ◽  
Lactuca Sativa L ◽  
Grand Rapids ◽  
Root Hair Formation ◽  
Hair Formation
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