AGRONOMY 100 Lecture Notes - Lecture 27: Aspergillus

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16 Dec 2016
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Lifestyles: complete metamorphosis, i(cid:374) ea(cid:272)h step of the egg lar(cid:448)ae pupa adult (cid:272)y(cid:272)le, the i(cid:374)se(cid:272)t looks di ere(cid:374)t (cid:894)i. e. (cid:271)u(cid:425)er ies(cid:895, the lar(cid:448)ae a(cid:374)d adult (cid:272)or(cid:374) root(cid:449)orm (cid:271)oth ha(cid:448)e (cid:272)he(cid:449)i(cid:374)g mouthparts (cid:271)ut a(cid:425)a(cid:272)k di ere(cid:374)t parts of the pla(cid:374)t (cid:271)ased o(cid:374) (cid:449)hat stage they"re i(cid:374) (cid:894)i. e. lar(cid:448)ae a(cid:425)a(cid:272)k the roots, a(cid:374)d the adults a(cid:425)a(cid:272)k the silks(cid:895) (cid:271). Dire(cid:272)t damage: che(cid:449)i(cid:374)g, like the (cid:272)or(cid:374) (cid:271)orer redu(cid:272)es (cid:272)rop yield, eats the lea(cid:448)es of pla(cid:374)ts, (cid:449)hi(cid:272)h de(cid:272)reases the amou(cid:374)t of photosy(cid:374)the(cid:415)(cid:272) area, (cid:449)hi(cid:272)h, burro(cid:449)s i(cid:374)to stalks/stems a(cid:374)d (cid:449)eake(cid:374) them, (cid:272)ausi(cid:374)g lodgi(cid:374)g, eats the (cid:454)ylem/phloem, mea(cid:374)i(cid:374)g less (cid:449)ater o(cid:449), (cid:272)ausi(cid:374)g less photosy(cid:374)thesis, eats the roots, (cid:272)ausi(cid:374)g less (cid:449)ater uptake, eats the fruits, maki(cid:374)g them u(cid:374)a(cid:425)ra(cid:272)(cid:415)(cid:448)e, u(cid:374)usa(cid:271)le, a(cid:374)d/or u(cid:374)marketa(cid:271)le, eats the o(cid:449)ers, pre(cid:448)e(cid:374)(cid:415)(cid:374)g polli(cid:374)a(cid:415)o(cid:374) (cid:271). Fu(cid:374)gi: fa(cid:272)ulta(cid:415)(cid:448)e, o(cid:271)ligate, saprophyte, fusarium diseases are also fu(cid:374)gi (cid:1005). Their symptoms are (cid:448)aria(cid:271)le: parasi(cid:415)(cid:272, water rela(cid:415)o(cid:374) i(cid:374)terfere(cid:374)(cid:272)e (cid:894)they (cid:272)log the (cid:454)ylem(cid:895, to(cid:454)i(cid:374)s, grai(cid:374) diseases are espe(cid:272)ially de(cid:448)asta(cid:415)(cid:374)g, repla(cid:272)e stru(cid:272)tures.

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