evaluation of essential oil yield, morphological and phenological traits of seven populations of twochamomilespecies )matricaria aurea and m. recutita), were carried out using randomized completely blocks design (rcbd) in three replications in alborz research station in karaj, iran during 2011-2012. data were collected for 12 morphological and phenological traits. analysis of variance showed si...

jasmonate is new plant growth regulator that plays an essential role at increasing plants resistance to the environmental stresses like salinity stress. hence, in this research the effect of foliar application of methyl jasmonate on some physiological indices and yield of german chamomile under salinity conditions was studied. a factorial experiment was laid out based on randomized complete blo...

in order to evaluate the effects of planting date and corm density on yield and some other traits of saffron under climatic conditions of malayer in the west of iran, an experiment was conducted using split plots based on randomized complete blocks design with four replications. different planting dates (15th july, 15th august and 15th september) were allocated in the main plots and different c...

abstract- to investigate the effect of draught stress on water relations, stomatal density, chlorophyll content and yield of rapeseed, an experiment was done with four levels of drought stress including l1 (field capacity, fc), l2 (70% available water content, awc), l3 (50% awc), and l4 (30% awc), within three growth stages- including stem elongation (t1), onset of flowering (t2) and silique fo...

Drought is the main abiotic factor limiting more than 70% of the arable land around the world. Ethylene, a plant hormone, has often been observed to increase under environmentally unfavorable conditions, resulting in abscission of leaves and fruiting forms and ultimately in yield reduction. Concerning cotton, however, the effects of water-deficit stress on ethylene production have been uncertai...

In this present paper, a new counting algorithm for tangerine yield estimation is adapted to obtain better results with respect to partially / semi partially occluded tangerine and its clusters. To optimize tangerine counting, and to minimize typical background noises from orchards (i.e. bare soil, weeds, and man-made objects), a tangerine fruit counting algorithm is implemented, and compared b...

Verde plant bugs, Creontiades signatus Distant (Hemiptera: Miridae), were released onto caged cotton, Cossypium hirsutum L., for a 1-wk period to characterize the effects of insect density and bloom period of infestation on cotton injury and yield in 2011 and 2012, Corpus Christi, TX. When plants were infested during early bloom (10-11 nodes above first white flower), a linear decline in fruit ...

According to the result of current study, plant height, canopy, stem girth, number primary branches and total dry matter at 30 DAT, 60 90 DAT were recorded maximum with application 100% RDF. The yield parameters, such as a flowers per plant, yield/plant, yield/plot yield/ha., flowering minimum days first flower bud appearance, 50% flowering, harvest duration, i.e., highest gross return/ha net b...