The sexual state ( " C . sativus " ), when formed in culture, is in the form of black, globose Asci are clavate and measure 20-35 x 150-250 ?m.
42.
It is a sterile triploid form, which means that three homologous sets of chromosomes compose each specimen's genetic complement; " C . sativus " bears eight chromosomal bodies per set, making for 24 in total.
43.
Human cultivators bred wild specimens by selecting for unusually long stigmata; thus, a sterile mutant form of " C . cartwrightianus ", " C . sativus ", likely emerged in late Bronze Age Crete.
44.
The genome of the mitochondrion of the cucumber ( " Cucumis sativus " ) consists of three circular chromosomes ( lengths 1556, 84 and 45 kilobases ), which are entirely or largely autonomous with regard to their replication.
45.
If " C . sativus " is a mutant form of " C . cartwrightianus ", then it may have emerged via plant breeding, which would have selected for elongated stigmata, in late Bronze Age Crete.
46.
In ancient Persia, saffron ( " Crocus sativus "'Hausknechtii') was cultivated at Isfahan in the 10th century BC . There, Persian saffron threads have been found interwoven into ancient Persian royal carpets and funeral shrouds.
47.
The main reason saffron is considered one of the most expensive spices in the world is due to the cultivation process coupled with the amount of produced saffron per Crocus " ( Crocus sativus ) " cultivated " ."
48.
It is considered to be an endemic virus in greenhouses and field productions of Cucurbitaceae crops, including melon ( " Cucumis melo " ), cucumber ( " Cucumbis sativus " ), and watermelon ( " Citrullus lanatus " ).
49.
It has also been discovered that, in cucumber ( " Cucumis sativus L " . ), PEPCK levels are increased by multiple effects that are known to decrease the cellular pH of plants, although these effects are specific to the part of the plant.
50.
Being sterile, the purple flowers of " C . sativus " fail to produce viable seeds; reproduction hinges on human assistance : clusters of corms, underground, bulb-like, starch-storing organs, must be dug up, divided, and replanted.
