in order to evaluate genetic diversity among squash landraces from northwest iran by morphological and physiological traits, 18 squash landraces belong to pumpkin, ornamental and confectionary groups were planted in completely randomized block design with three replications in agricultural research center of urmia in 2013. morphological characteristics related of fruit, seed, leave and flower a...

Understanding the mechanisms of calcium (Ca2þ) deficiency disorder development in plants has been a challenge for more than a 100 years. Previous studies support the hypothesis that Ca2þ deficiency disorders can be triggered by mechanisms that reduce plant Ca2þ uptake from the soil, fruit Ca2þ uptake from the plant, and Ca2þ translocation within the fruit, and also result in abnormal regulation...

Conversion of [(14)C]galactose (Gal) 1-P, UDP-[(14)C]Gal, or UDP-[(14)C]glucose to [(14)C]sucrose was observed when cell-free homogenates of cucumber (Cucumis sativus L.) fruit peduncles were incubated with individual (14)C-labeled substrates, appropriate cofactors, and fructose. The sucrose product was labeled only in the glucose moiety. Conversion of [(14)C]Gal-1-P to [(14)C]sucrose was catal...

The movement and mobilisation of phosphorus in various tissues of banana was studied using P. The isotope was given by pseudostem injection and activity measured in various tissues. It was inferred that the male inflorescence, rhizome, fruit and fruit peduncle are the major nutrient sinks. The activity pattern in different hands showed that the highest activity was in the fourth followed by the...

Mechanized harvesting of cucumbers offers significant advantages compared to manual labor as both shortages and costs of labor increase. However the efficient use of machines depends on breeding plants with longer peduncles, but the genetic and molecular basis of fruit peduncle development in cucumber is not well understood. In this study, F2 populations were developed from a cross between two ...

Comparative studies have usually shown higher yields in conventional cropping systems (CCS) than in organic cropping systems (OCS). By utilizing a long-term field experiment on silt soil with 18 years of cropping history (1982–1999), including three OCSs and one CCS, we studied if this is true also for strawberry. The strawberry experiment was conducted in 2000–2002. The experiment had one CCS ...

Sclereid formation in addition to or in gaps of fragmented fibre rings is common in dicotyledonous plant stems. Whether this sclereid formation is force-triggered remains open so far. In fruit peduncles of several Malus species as modified plant stems, for example, the persistent fibre ring is displaced to the centre by formation of cortex parenchyma during growth. Parenchyma cells subsequently...

Six Iranian accessions of Cucumis melo, including Inodorus, Cantalupensis, and Dudaim groups, were planted and then harvested at two harvesting stages including 21 and 28 days after anthesis for Dudaim group and 28 and 38 days after anthesis for Inodorus and Cantalupensis groups. At the time of harvest, we measured some quality parameters and appearance indices of fruits, such as the number of ...

One of the requirements of a fruit harvesting robot is the ability to recognize and locate fruit from the leaf and branch portions; machine vision system is one of the methods used to detect the location of the fruit. This paper showed the development of a machine vision algorithm that would guide an apple harvesting hand prototype. The objectives of this study were to differentiate the fruit f...