Background: The high salt level of a germinating environment can lead to reduced, delayed, and even complete inhibition of germination and seeding growth due to osmotic action and/or ion toxicity. Based on this viewpoint, the aim of this study was to investigate germination temperature and salinity effects on germination and early seedling growth of soybean, which can be sown as first and second crops. Methods: Soybean seeds were subjected to NaCl induced saline germinating media prepared in petri dishes under two different germination temperatures (20±2 and 25±2oC). Thirty sterilized seeds per petri dish were sown in ten salt treatments (0, 100, 150, 250, 750, 1000, 2250, 5000, 7500 and 10000 ppm NaCl L-1). The study was carried out according to the completely randomized design with four replications. Result: Lower temperature promoted seed germination, while the high temperature significantly inhibited the seed germination at all NaCl doses tested. As a result, 25oC temperatures, which can only be measured at the time of the second sowing, have been found to negatively affect germination and also increase the negative effects of salt. Due to the moderate tolerance of soybeans to salt stress, the germination rate was positively affected up to 750 ppm NaCl L-1 dose and resulted in severe reductions in subsequent doses. Also, the tolerance of soybean was negatively influenced by the interaction of temperature and NaCl concentration.
Malva sylvestris, Falcaria vulgaris Bernh and Chenopodium botrys L. are of the usually expended wild palatable plants as nourishment and therapeutic purposes by residents in Eastern Anatolia Region of Turkey. In this manner, the assurance of dietary esteem and minerals of eatable wild plants are basic for nourishment security and human health. Hence, in the present examination nutritional esteem and minerals of chose plant species were researched. Additionally, this study presents useful data (mineral constituents, total ash, dry matter, % N, crude protein, pH and crude fiber) to show the knowledge of the nutritional value of three wild plants traditionally consumed in many areas in Eastern Anatolia. According to the results obtained from laboratory analysis, Malva sylvestris is high in crude fiber (44.64%) compared with Falcaria vulgaris Bernh (18.34%) and Chenopodium botrys L. (36.04%). Crude protein content of Falcaria vulgaris and Chenopodium botrys L. were calculated as 21.69% and 12.25%, respectively, while that of Malva sylvestris was 8.57%. In terms of total ash content, it was observed that Chenopodium botrys L. has higher value (20.84%) than the others. The higher values of mineral elements were observed in Chenopodium botrys L. such as sodium (1.24g kg-1), potassium (28.22g kg-1), calcium (46.87g kg-1), phosphor (3.95g kg-1), magnesium (10.61 g kg-1), iron (580.53mg kg-1), manganese (79.54mg kg-1), while the higher values of Sulphur (1.91g kg-1), zinc (43.14mg g-1) and total ash (20.84%) rate were determined in Malva sylvestris species.
Amaç: Bu çalışma, Kahramanmaraş’ta yetiştirilen pamuk genotiplerinde, pamuk bitkisinin meyve ve odun dallarından alınan pamuk liflerine ait lif verim ve lif kalite özelliklerini belirlemek amacı ile yürütülmüştür.
Materyal ve Yöntem: Çalışmada, materyal olarak 7 pamuk genotipi kullanılmıştır. Pamuk liflerinin lif verimlerine ait veriler tesadüf blokları deneme desenine göre dört tekerrürlü olarak 2017 yılında kurulan deneme alanından, lif kalite özelliklerine ait veriler ise İSKUR Tekstil Laboratuvarından elde edilmiştir.
Araştırma Bulguları ve Sonuç: Araştırma sonuçlarına göre lif verimi 116.50 kg da-1 ile 225.56 kg da-1 arasında değişmiştir. En yüksek lif verimine 225.56 kg da-1 ile DP 396 çeşidi sahip olmuştur. Meyve dalı lif verimi 111.42 kg da-1 ile 197.91 kg da-1 arasında değişmiştir. En yüksek meyve dalı lif verimine DP 396, DP 332, ST 468, ve BA 119 (sırasıyla 197.91 kg da-1, 193.45 kg da-1, 181.29 kg da-1 ve 178.04 kg da-1) çeşitleri sahip olmuştur. Odun dalı lif verimi 1.03 kg da-1 ile 29.63 kg da-1 arasında değişmiştir. En yüksek odun dalı lif verimine 29.63 kg da-1 ile DP 396 sahip olmuştur. Bütün genotiplerde fenotipik ve genotipik özellikler birbirinden farklı olduğu için yetiştirildiği olduğu iklim ve çevre koşullarına tepkiler farklı olmuştur.
Öneri: Lif verimi, teknolojik ve diğer kalite özellikleri ile ilgili ıslah çalışmalarında makineli hasada uygunluk da göz önüne alınarak odun dalını azaltmaya, meyve dalını artırmaya yönelik araştırmaların yapılabileceği teyit edilmiştir.
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