Trendy high-density olive fields are often monovarietal orchards, mostly using the cultivar Arbequina. However, Arbequina shows a strong self-incompatibility response, and its yields depend on wind cross-pollination, which is not always available. With aim of finding suitable self-compatible cultivars that can replace Arbequina, we evaluated pollen–pistil interaction, fruit set seed paternity in Arbosana under different pollination treatments: self-pollination, open-pollination three...

For this research we used 15 day-old seedlings which were transplanted to 2 L pots and inoculated with 4,000 nematode eggs plus juveniles (J2). After 60 days, the root systems removed number of galls evaluated calculate reproduction factor (RF). The tomato cv. Santa Cruz was as a susceptible control. experimental design completely randomized, six replications. Averages compared using Tukey or Scott-Knott test at 5%. lettuce, Salad Bowl (Mimosa type), Elizabeth Elisa (Lisa) Vera cultivars...

Recently there have been new trends in global consumption toward fresh foods that are sources of healthy bioactive compounds, as is the case with pitaya. However, pitaya cultivation a relatively recent phenomenon and little known about its management. The objective this work to determine most appropriate annual fruiting pruning method for order obtain regular yield quality fruit an intense shoot renewal guarantee future production. This study compared response Hylocereus undatus spur, cane,...

Intercropping systems are a widely used agricultural practice by smallholder farmers to enhance food security and use natural resources more efficiently. The objective of this study was evaluate two lettuce cvs under an intercropping system. Enzymatic growth, yield economic benefit were evaluated. experiment carried out from August February in Jaboticabal (Brazil) using tomato plants as main crop Lucy Brown Vanda secondary crops. catalase, superoxide dismutase peroxidase activity analyzed....

The main objective of this work was to determine the optimum level pruning in pitaya. In addition, we want establish relationship between levels and intensity flowering, flowering heavy flower bud drop that affects species. With these aims, two experiments were performed on Hylocereus undatus [(Haw.) Britton Rose] cultivated greenhouses trained a trellis system. Our results conclude cane leaving 15 cladodes per meter system is most productive, as it yielded more fruit similar weight....

ABSTRACT With recent cultivation in Brazil, the dragon fruit still have lacks related to selection of promising materials and there are not yet commercial varieties country. Therefore, manual pollination cross were held 2010, between plants H. undatus x polyrhizus setaceus. Aiming evaluate genetic diversity progenies for future use breeding program, based on cladodes characteristics, six characters assessed: length diameter stem, distance areoles, arch height, number size spines/areole. From...

Greenhouse cultivation of table grapes is a challenge due to difficulties imposed by their perennial habit and chilling requirements. Despite difficulties, greenhouse allows ripening long before that in the open field. Nonetheless, for harvesting “Flame Seedless” most profitable periods, cultural practices timetable has be established. In this context, an estimation development rate as function temperature becomes essential. This work puts forward procedure determine threshold temperatures...

ABSTRACT Root-knot nematode Meloidogyne enterolobii is the main phytosanitary problem of guava cultivation in Brazil. Among strategies to manage problem, best prospects are identifying or developing cultivars rootstocks that resistant this nematode. To identify plants with potential as for guava, reaction araçá (wild guava) M. was assessed a greenhouse experiment. Seven species were evaluated (Eugenia stipitata, Psidium acutangulum, P. cattleyanum ‘yellow’, friedrichsthalianum, guajava var....

ABSTRACTIn no-tillage systems, straw coverage on soil surface is the key to success, and choice of crops for rotation crucial achieve sustainability quality that conservation agriculture requires. The objective this study was evaluate agronomic performance common bean cultivar IAC Formoso sown in succession three mulch systems (corn alone, corn/Urochloa ruziziensisintercrop U. ruziziensisalone) topdress nitrogen rates (0; 40; 80; 120 160 kg ha-1N), at four-leaf stage, years after...

O canistel é nativo do sul México e América Central seus frutos apresentam elevado teor de carotenoides vitamina A. Sua propagação feita via sementes, resultando em considerável variabilidade genética entre os indivíduos, sendo a vegetativa preferível, fim fixar características desejáveis. Assim, o objetivo deste trabalho foi avaliar por estaquia ramos semi-herbáceos canistel, função quatro genótipos concentrações AIB. Foram utilizadas estacas semiherbáceas apicais, mantidas com um par...

Abstract The cashew tree, a genuinely Brazilian fruit is grown mainly because of its nuts and nut shell liquid (CNSL), widely used in industry. Of great food importance, the apple also presents economic representativeness Brazil. With variability, culture has recently begun researches for improvement, with selection new clones, more productive specific purpose. Usually propagated from seeds to produce orchards, which been replaced by vegetative propagation using seed only rootstocks...

Nesse trabalho, o objetivo foi avaliar a reação de oito porta-enxertos videira aos nematoides das lesões radiculares. As estacas dos Kober, SO4, 101-14, R99, 420-A, Rupestris du Lot, Riparia do Traviú e Telek 5C, cedidas pelo Centro APTA Frutas/IAC, foram plantadas em vasos contendo mistura solo:areia na proporção 2:1 (v:v) mantidas casa vegetação. Após quatro meses, os inoculados com 1.200 espécimes Pratylenchus brachyurus ou P. zeae, milho usado para comprovar viabilidade inóculo. Aos 180...

This study evaluated, under controlled conditions, the reaction of ten grape rootstocks from a germplasm collection at Programa de Melhoramento Genetico Videira, Centro APTA Frutas do Instituto Agronomico Campinas, Brazil, against Meloidogyne incognita and M. javanica nematodes. Seedlings were inoculated with 4,000 eggs juveniles. After 60 days, root systems evaluated respect to amount galls in order determine, by calculating reproduction rates, immunity, resistance susceptibility....

Backcrossing between Sikitita and its male parent Arbequina, offers the possibility to check suitability of different self-incompatibility models proposed for olive. To determine Sikitita's response self- cross-pollination treatments, including pollination with father we compared parameters following pollen-pistil interaction, resulting initial final fruit set, paternity seeds produced under crosses. The results showed that behaves as a self-incompatible cultivar due inhibition pollen tube...

Loquat prices depend on fruit size and earliness. Earliness is improved by postharvest deficit irrigation (DI), without negative effects size. An optimization of DI strategies carried out limiting the dry period led to greater harvest date advancement, but water savings were reduced. To further improve earliness quality increase savings, we combined pre strategies. Treatments T1: trees not irrigated during six weeks after (no preharvest applied); T2: that, in addition DI, watered from rapid...

O objetivo do trabalho foi avaliar o desempenho agronômico e a formação de palhada pelo milho em cultivo consorciado com Urochloa ruziziensis função efeito residual da adubação nitrogenada aplicada no antecessor (feijoeiro). delineamento experimental blocos casualizados, parcelas subdivididas, três repetições, Jaboticabal (SP). As foram compostas por sistemas cultivos, representados exclusivo, U. exclusiva (cultivos verão) sucessão ao feijoeiro (cultivo inverno-primavera uso irrigação),...