R. L. R. Duarte

Produtividade de cultivares de cebola no Semi-Árido piauiense

The yield of onion cultivars was evaluated in the Picos region, Brazil, from May to October 1999. The experimental design was of randomized complete blocks with 18 treatments and four replications. The cultivars Granex 33, Composto IPA-6, Belem IPA-9, Franciscana IPA-10, Vale Ouro IPA-11, Texas Grano 502, Conquista, Crioula, Serrana, Granex 429, Regia, Princesa, Mercedes, Duquesa, Linda Vista, Piraouro, Granex Ouro and Baia Periforme Precoce were evaluated. We evaluated the commercial and noncommercial bulb yield. The cultivars were grouped in three classes according to bulb yield (>40 t/ha; 39.9-34.6 t/ha; 32.4-26.9 t/ha). The average onion bulbs yield was 41,9 t/ha. The most productive cultivars (commercial bulbs) were Vale Ouro IPA-11 (43,7 t/ha), Franciscana IPA-10 (41,5 t/ha) and Mercedes (40,5 t/ha).

Estudo da oferta e comercialização de melão na CEASA-PI (1991-1996)

The annual commercialization of melon in CEASA of the Piaui State, from 1991 to 1996, was of 5,597 t of fruits, with an increase of 137.2% in relation to the period 1986-1991. During the whole year, most of the melon fruits in CEASA come from Pernambuco, Bahia and Rio Grande do Norte States, with an annual average of 2,195 t (39%), 2,138 t (19%) and 842 t (15%), respectively, resulting in a total of 5,187 t, or 73% of the market. The largest supply and amount of marketed melon fruits comes from Petrolina, Juazeiro and Mossoro. The amounts offered from the different States changed during the year: From Bahia, the lowest offer was observed during December-January and April-June, and from Pernambuco and Rio Grande do Norte the lowest offer occurred during July-November, and April/September, respectively. Regarding the fruits produced in the Piaui State, the marketed amount increased from 106 to 218 t, resulting in an increase of 0.36% when compared to the period 1986-1991.

Características comerciais de alho em Picos, PI

Este trabalho teve por objetivo avaliar e selecionar cultivares de alho para as condicoes edafoclimaticas da microrregiao de Picos, PI. O experimento foi conduzido em blocos casualizados completos, com oito tratamentos e quatro repeticoes. As cultivares avaliadas foram Branco Mineiro, Centenario, Amarante, Chines, Cateto Roxo, Mexicano II, Cateto Roxo Local e Mossoro. As caracteristicas avaliadas foram altura de plantas aos 60 e 90 dias apos o plantio, produtividade de bulbos comerciais e incidencias de bulbos nao comerciais, bulbilhos aereos, pseudoperfilhamento, bulbos mal formados e de bulbos chochos. A cultivar Mossoro apresentou maior altura de plantas aos 60 e 90 dias apos o plantio. Quanto a produtividade de bulbos comerciais, a cultivar Mossoro foi a mais promissora (4,63 t/ha), porem, nao diferindo estatisticamente (P>0,05) das cultivares Cateto Roxo Local (3,94 t/ha) e Cateto Roxo (3,46 t/ha). A cultivar Branco Mineiro teve comportamento semelhante a cultivar Cateto Roxo Local e Cateto Roxo. As menores produtividades comerciais foram observadas para as cultivares Chines, Centenario, Amarante e Mexicano II. A cultivar Chines teve a maior percentagem de bulbos nao comerciais (80,05%). Observou-se, um baixo indice de pseudoperfilhamento para todas as cultivares avaliadas.

Oferta e comercialização de melancia na CEASA-PI (1991- 1996)

This study was conducted to analyze and provide information about the supply, source and commercialization of watermelon in the state of Piaui, Brazil, from 1991 to 1996. Monthly data of commercialized fruits were obtained from CEASA-PI, which is a central market for vegetable and fruit commercialization for the whole state. The average total commercialized annually within the period was 11,250 t of fruits, which meant an increase of 33.8% in comparison to the average total of 8,409 t, commercialized annually from 1986 to 1991. Pernambuco (PE), Bahia (BA) and Piaui (PI) were the most important states in terms of watermelon supply, with average annual totals and average percentages of 5,140 t (45.68%), 3,765 t (33.48%) and 1,799 t (15.97%), respectively. The greatest quantities of watermelon fruits originated from Petrolina (PE), Juazeiro (BA), Barreiras (BA), and Barras (PI), which were also the states most regularly supplying watermelons to CEASA-PI. The periods from June to July, September to October, and December, were those with the lowest watermelon supplies from Bahia and Pernambuco states. These are thus the most advisable periods for Piaui farmers to commercialize their production, as long as economic production levels are reached.