S. jozghsemi; S. N. Mortazavi; Mohsen Khodadadi
Abstract
The Tuberose cut flower is much less longevity in postharvest. The less vase life due to stress of deficit carbohydrate and quick respiration on inflorescence. In this study, effectiveness factors, sucrose, CaCl2, Al2So4 and re-cut the stems. In current research two separate experiments were arranged ...
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The Tuberose cut flower is much less longevity in postharvest. The less vase life due to stress of deficit carbohydrate and quick respiration on inflorescence. In this study, effectiveness factors, sucrose, CaCl2, Al2So4 and re-cut the stems. In current research two separate experiments were arranged as a factorial based on compeletly randomized design. The first experiment were added to all experimental units have 100 ppm Al2So4 and investigation the effect of sucrose and CaCl2 factors. In the other experiment was added in all treatments of suitable sulation that obtain from first experiment (3.5 percent Sucrose and 200 ppm CaCl2) and investigation the effect of Al2So4 and re-cut stems factors. The vase life of cut flower, relative water content(RWC), a, b and total chlorophyll content were evaluated. The results of first experiment indicated the effect of reciprocal treatment with sucrose (3.5 %) and CaCl2 (200 ppm) increased significantly on the protection of a, b and total chlorophyll content and RWC, and increased the longevity at the time 16 days about 88 percent. The result of secondry experiment showed that the third important cause of reduced longevity of tuberose cut flower high susceptibility to blockage xylem, and treatment with protection sulation containing 3.5 % sucrose and 200 ppm Al2So4 and spray 200 ppm CaCl2 and Re-cut every 48 hourse were recommended for using to dissolve problems of post harvest the Tuberose cut flower.
Akbar Nowruzi; Mohsen Khodadadi; Ahmad Golchin; Ahmad Akbari Nia
Abstract
Abstract
Use of organic fertilizer in production of organic products is important. A field experiment was conducted to investigate the effect of different levels of poultry manure on some growth characteristics and crop yield of Iranian melons. The design was split plot in a randomized complete block ...
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Abstract
Use of organic fertilizer in production of organic products is important. A field experiment was conducted to investigate the effect of different levels of poultry manure on some growth characteristics and crop yield of Iranian melons. The design was split plot in a randomized complete block design with four replications. Levels of poultry manure (PM) included: 0, 5, 10, 15 and 20 tons per hectare which allocated in main plots and three Iranian melon Mashhadi, Soski and Yellow Jalali in sub-plots. Seeds were planted in the second half of the May 2009. Stem length, ratio width to length fruit, dry matter, total soluble solid compounds of fruit (TSS), fruit weight and performance were measured. Results showed that the local populations of melon and poultry manure levels were statistically significant (p
Abdolsattar Darabi; Mesbah Babalar; Abdolkarim Kashi; Mohsen Khodadadi
Abstract
Abstract
An experiment was conducted to study growth analysis and evaluation of change in simple non- structural carbohydrates (sucrose, glucose and fructose) during bulb formation of Ghermez Azarshahr , Zargan, Safid naishaboor and Safid Qom cultivars in randomized complete block design containing ...
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Abstract
An experiment was conducted to study growth analysis and evaluation of change in simple non- structural carbohydrates (sucrose, glucose and fructose) during bulb formation of Ghermez Azarshahr , Zargan, Safid naishaboor and Safid Qom cultivars in randomized complete block design containing three replications. Seeds were sown in nursery in early February and seedlings were transplanted in early May. During initiation of bulbing carbohydrates accumulated in leaf bases. Before and after bulb formation (about 20 days after bulb formation) the most simple non-structural carbohydrates content was found in Safid Qom cultivar. The maximum and minimum increasing percent of simple non- structural carbohydrates components belong to glucose and sucrose respectively. The results of growth analysis indicated that the period of slow growth had been about 75 days after emergence (for all studied cultivars) and then the period of rapid growth of leaf has begun. The bulb growth rate of Zargan cultivar during the most parts of bulb development stage was higher than other culitivars, due to this reason and earliest date of bulbing, yield of mentioned cultivar was higher as compared with other cultivars. A high significant positive correlation ( r = 48% ) was found between relative growth rate and net assimilation rate at 1% level. Zargan cultivar produced the highest total and marketable yield, so that mentioned cultivar is recommended for Karaj region.
Key words : Onion, Yield, Carbohydrate, Growth analysis, Net assimilation rate
