tolmuteras paiknevate sugurakkude ühinemine sigimikus asuvate sugurakkudega, mille tagajärjel hakkab kasvama seeme
the union of the nucleus and other cellular constituents of a male gamete (pollen or sperm) with those of a female gamete (i.e. ovum or egg) to form a zygote from which may develop a new plant
Viljastumise viise on mitmesuguseid. Isefertiilsus on taime omadus viljastuda oma õietolmuga. ... Isesteriilsus - taim ei viljastu oma sordi õietolmuga. Isesteriilne sort annab saaki ainult siis, kui õitsemise ajal satub tema õitele tolmuandja sordi õietolmu.
At their request and under the conditions specified below, Community fruit growers shall qualify for a premium for grubbing:: ... trees or varieties other than those mentioned above if those varieties are necessary for the fertilization of the 'Golden Delicious', 'Starking Delicious', 'Imperatore' or 'Passe Grassane' varieties.
