Comparison of different propagation methods on yield and quality of two onion cultivars
Ahmad
Asghar zadeh
عضو هیات علمی گروه کشاورزی، دانشگاه آزاد اسلامی واحد شیروان
author
Elyas
Neyestani
عضو هیات علمی ایستگاه تحقیقات دیم شمال خراسان
author
Majid
Rafiei
عضو هیات علمی گروه کشاورزی، دانشگاه آزاد اسلامی واحد شیروان
author
text
article
2003
per
This study was conducted to compare different propagation methods and two cultivars (Azarshar Red, and Kashan White) as a RCBD in factorial with four replications in Shirvan in 2001. In Azarshar Red onion, high yield belonged to sets method that 30 percent more than seed sowing. In Kashan white bulb cultivar, high yield was get from seedling cultivation and there were no significant differences with the other two cultivation methods. Bulb weight decreasing in store was shown high significant difference and in Azarshahr Red onion cultivar minimum was due to sowing and maximum was due to seedling cultivation. In Kaslian white cultivar seedling cultivation methods had minimum bulb weight decreasing and maximum value due to sowing. In Azarshahr Red cultivar maximum dry matter was get from sowing whereas, in Kashan White cultivar was gets from sets cultivation.
Agriculture (Not Published)
دانشگاه تهران
5524-1562
5
v.
2
no.
2003
1
6
https://joa.ut.ac.ir/article_10408_25fb570ed6622b3b96d9b605c51093ea.pdf
The effect of salinity stress on rapeseed cultivars germination
Akbar
Enferad
کارشناس ارشد گروه زراعت و اصلاح نباتات، پردیس کشاورزی و منابع طبیعی کرج، دانشگاه تهران
author
Naser
Majnoon Hosseini
استاد گروه زراعت و اصلاح نباتات، پردیس کشاورزی و منابع طبیعی، دانشگاه تهران
author
Kazem
Poostini
استاد گروه زراعت و اصلاح نباتات، پردیس کشاورزی و منابع طبیعی، دانشگاه تهران
author
Ahmad Ali
Khaje ahmad attari
موسسه تحقیقات اصلاح و تهیه نهال و بذر کرج
author
text
article
2003
per
The germination characteristics and seedling growth of 25 rapeseed cultivars under six levels of salt (NaCI) stresses including 0, 3, 6, 9, 12 and 15 ds/m were studied. The germination percentage of the rapeseed cultivars did not decrease significantly with increasing salt levels up to 12 ds/m. However, the required time for germination increased with increasing the salt percentage in the growth medium. A positive and significant relationship between germination percentage and speed rate and also between germination percentage and radicle length at the highest level of salt stress was observed. Consequently the salt tolerant cultivars had a higher seed germination and speed rate and produced a higher radiçle length as compared to other cultivars.
On the basis of seed germination and speed rate parameters the rapeseed cultivars were categorized into three groups. According to the responses of different germination parameters to salt stresses it was concluded that the optimum electrical conductivity of salt solution for rapeseed germination would be in the range of 3-6 ds/m.
Agriculture (Not Published)
دانشگاه تهران
5524-1562
5
v.
2
no.
2003
7
18
https://joa.ut.ac.ir/article_10409_57361308dec3f7abedf420fe13147a26.pdf
Reduction of industrial wastewater lead content through Phytoremediation
Arash
Zamyadi
کارشناس ارشد گروه آبیاری، پردیس کشاورزی و منابع طبیعی کرج، دانشگاه تهران
author
Ali Reza
Hassanoghli
عضو هیات علمی موسسه تحقیقات فنی و مهندسی کشاورزی کرج
author
Abdolmajid
Liyaghat
استادیار گروه آبیاری، پردیس کشاورزی و منابع طبیعی کرج، دانشگاه تهران
author
text
article
2003
per
This study was undertaken to investigate the feasibility of treating industrial wastewater using soil and plant system. Nine cylindrical plastic-lysimeters (60 cm diameter and 100 cm height) equipped with a drain pipe at the bottom were filled by granular sandy-loam soil. Sunflower, Oat and Fescue were planted each in three lysimeters, in order to investigate the effectiveness of plants in lead absorption. After plantation, lysimeters were irrigated with well water until the plants were established. Then the irrigation was continued by contaminated wastewater consisting of 2 mg/I lead. In addition, the drain effluent was collected and analyzed to determine the ability of soil and plant system for lead sorption. The concentration of lead in drain effluent of all lysimeters was less than the standard limits, which indicate a satisfaction performance for the system in absorbing lead up to 99 percent. The range of lead absorption by different parts of plants was from 0.056 to 0.154 percent, which indicates a phytoremediation process in the system.
Agriculture (Not Published)
دانشگاه تهران
5524-1562
5
v.
2
no.
2003
19
27
https://joa.ut.ac.ir/article_10410_7ca3ede4ae3ebec77877d442acbcd071.pdf
The effect of water stress on soluble protein and proline amino acid in three cultivars of Cicer arientinum
Manijeh
Sabokdast
مربی گروه زراعت و اصلاح نباتات، پردیس کشاورزی و منابع طبیعی کرج، دانشگاه تهران
author
Farangis
Khiyal parast
مربی گروه زراعت و اصلاح نباتات، پردیس کشاورزی و منابع طبیعی کرج، دانشگاه تهران
author
text
article
2003
per
In a pot experiment the effect of water stress on the proteins and Proline amino acid content of jam, Kurosh, Pirooz Chickpea Cultivars (Cicer arientinum) were evaluated using a complete block design with factorial treatments inducing cultivars and watering periods, three, six and nine day intervals in three replications. Soluble protein and free proline content of the leaf and the root were measured at 45 and 65 days after commencement of the bioassay. The result showed that the soluble protein decreased while amino acid accumulated due to the stress in the leaf and the root. Decreasing of proteins and increasing of proline amino acids had a positive correlation with water stress. Variation of proteins was not significant but accumulation of proline amino acid was higher in Pirooz than Jam and Koorosh. This may suggests that Pirooz is more tolerant to water stress than Jam and Koorosh.
Agriculture (Not Published)
دانشگاه تهران
5524-1562
5
v.
2
no.
2003
29
37
https://joa.ut.ac.ir/article_10411_58ce9d07cabde476d07e510d83864187.pdf
Diallel analysis of callus induction and plant regeneration in rice anther culture
Maryam
Hosseini
عضو هیات علمی موسسه تحقیقات برنج کشور، رشت
author
Ali akbar
Ebadi
عضو هیات علمی موسسه تحقیقات برنج کشور، رشت
author
Hamid
Shafiei Sabet
کارشناس موسسه تحقیقات برنج کشور، رشت
author
text
article
2003
per
Low efficiency of callus induction and green-plant regeneration have limited the application of anther culture in breeding programs. This study was conducted to determine the inheritance of callus induction and plant regeneration in rice (oryza sativa) anther culture. Ten genotypes drived from a five-parent diallel mating set contain Khazar, Sepidrood, Hashemi, Alikazemi and Nematt were evaluated for their callus induction and plant regeneration abilities. Analysis of variance for GCA and SCA showed significant effect for all traits. The highest GCA in green and total regeneration were in Khazar and Hashemi, so these parents were good for production homozy gose lines. Narrowsense heritability were low in this three traits. So non-additive effets were high in these traits. Analysis of hymen method showed these conculution too. The genes with increasing effects on green plant and total regeneration percentage were dominant. Therefore, we will observed the highest regeneration in F1 family.
Agriculture (Not Published)
دانشگاه تهران
5524-1562
5
v.
2
no.
2003
39
49
https://joa.ut.ac.ir/article_10412_dca05c6e053f80ec507be9cc8249ac96.pdf
The effect of medium component on freezing tolerance of three chickpea cultivars
Fereshteh
Moshiri
کارشناس ارشد بیوتکنولوژی، دانشکده کشاورزی، دانشگاه فردوسی مشهد
author
Abdol Reza
Bagheri
استاد گروه زراعت و اصلاح نباتات، دانشکده کشاورزی، دانشگاه صنعتی اصفهان
author
Saeid Reza
Vesal
مربی دانشگاه صنعتی اصفهان
author
text
article
2003
per
The effects of sucrose and some regulators on freezing tolerance in chickpea studied. Four weeks in vitro explants were cultured in three different MS media without growth regulators and with normal level of sucrose (30 gl-1) (a), without growth regulators and with reduced sucrose (10 gl-1) (b) and medium supplemented with lmg gl-1 BAP and 0.1 mgI1 IBA and with 30 gI-1sucrose (c) for two weeks. The explants were free zed to zero, -4, -8, -12, -16 and -20 C for one hour in programmable freezer after acclimation within 20 days at 4 C. Freezing tolerance determined as lethal temperature (LT50) by probit analysis. The plants cultured in medium (a) had the most freezing tolerance. The in vitro screening of chickpea cultivars in medium (a) would be satisfactory.
Agriculture (Not Published)
دانشگاه تهران
5524-1562
5
v.
2
no.
2003
51
58
https://joa.ut.ac.ir/article_10413_449bacccbf3033028d791e4ffc0d4025.pdf