'Valencia' sweet orange tree flowering evaluation under field conditions

‘valencia’ Sweet Orange Tree Flowering Evaluation under Field Conditions

Since citrus flowering is a key process in citriculture and its evaluation is often difficult due to the canopy structure and field sampling, the aim of this research was to give some directions regarding the evaluation of flowering in field-grown sweet orange plants. This study was conducted in a citrus orchard of sweet orange plants cv. ‘Valencia’ [Citrus sinensis (L.) Osbeck] grafted on ‘Cle...

Ability of ‘Valencia’ Sweet Orange to Cold-acclimate on Cold-sensitive Citron Rootstock

Greenhouse-grown l-year-old sweet orange trees [Citrus sinensis (L.) Osbeck cv. Valencia] on cold-hardy trifoliate orange [Poncirus trifoliata (L.) Raf.] and cold-sensitive citron (C. medica L.) rootstocks were exposed to cold-acclimation conditions and freeze-tested at -6.7C for 4 hours in a temperature-programed walk-in freezer room. Nonhardened trees generally did not survive the freeze, whe...

CsHPt1, a putative histidine-containing phosphotransmitter protein induced during early somatic embryogenesis in Valencia sweet orange

A cDNA named CsHPt1 (for Citrus sinensis histidine phosphotransmitter protein 1) containing a conserved domain characteristic of a twocomponent phosphorelay intermediate associated with signal transduction mechanisms, was isolated from globular embryos of C. sinensis sweet orange cv. ‘Valencia’ by differential display RT-PCR. The corresponding full-length cDNA, subsequently obtained by RACE-PCR...

Clinical evaluation of nutritional status under field conditions.

Regreening of Valencia Orange as Influenced by Potassium Gibberellate.

In Southern California the Valencia orange (Citruis sinensis, L.) attains maximum orange rind color during winter and regreens s-omewhat by harvest time the following summer. The degree of regreening has been correlated with temperature patterns and with nitrogen nutrition (2, 5). It has also been reported (3) that applications of potassium gibberellate (KGA) to Valencia trees were associated w...