Beside these, large number of undocumented and unidentified wild and cultivated species
, varieties and cultivars of Pyrus are available in the temperate region of Pakistan.
'To my knowledge, this was the first known reported work on this wild and cultivated species
in Nigeria,' the dean noted.
In the first place, species hybridization followed by repeated backcrossing is a classic plant breeding technique when the desired traits (genes) cannot be found in the cultivated species
. To demonize and ridicule the method betrays an utter lack of understanding of basic biology and genetics.
He said that the occurrence of weeds in agricultural fields of grain and fiber production has caused losses to farmers for a long time but with the help of resistance genes in cultivated species
this problem would be solved.
In both cases, the cultivated species
potentially threaten ecosystem balance, in particular with respect to other filter-feeding organisms.
Non-cultivated plants may act as alternative begomovirus hosts when cultivated species
do not exist in the field or as a source of novel begomoviruses that arise via recombination in cases of mixed infections (Barreto et al., 2013; Rocha et al., 2013).
The best known and most cultivated species
is Physalis peruviana L.
It is closely related to the widely cultivated species
Taro commonly refers to the widely cultivated species
of several plants which are used as vegetables for their corms, leaves and stalks.
"If there is one thing we cannot allow to become extinct, it is the species that provide the food that sustains each and every one of the seven billion people on our planet." The report says at least 940 cultivated species
are already threatened, and though 75 percent of the global food supply is generated from just twelve plant crops and five animal species, preserving agrobiodiversity could prove crucial on a changing planet.