Penetration and development of juveniles of tobacco cyst nematode (Globodera tabacum solanacearum) on a resistant (NC567) and a susceptible (K326) cultivar of flue-cured tobacco (Nicotiana tabacum L.) were determined in root zone chamber experiments. More vermiform juveniles developed into a swollen shape at 22, 27, and 31 degrees C than at 17 degrees C. Development of flask-shaped nematodes ap...

We report r t visible i i l light li t emission i i from f Shottky tt diodes i made from f semiconducting se i cting polymers, l ers, confirming i ing the t discovery i by the t Cambridge idge group [Nature [ ature 347,, 539 (1990)]. Our r results lt ( 19 0>3. demonstrate trate that t t light-emitting li t-e itting diodes i can be fabricated f i te by casting ti the t polymer film fil from f so...

Polyamines, such as spermidine (Spd) spermine (Spm) and their direct precursor, the diamine putrescine (Put) are vital essential aliphatic amines which also present in plants. Although ethylene polyamines involved fruit ripening, genes coding them must take part other biosynthetic pathways. In play an important role development of salt stress tolerance, responses for biotic abiotic stresses. Ex...